linux/drivers/net/tsi108_eth.c

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[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
/*******************************************************************************
Copyright(c) 2006 Tundra Semiconductor Corporation.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59
Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*******************************************************************************/
/* This driver is based on the driver code originally developed
* for the Intel IOC80314 (ForestLake) Gigabit Ethernet by
* scott.wood@timesys.com * Copyright (C) 2003 TimeSys Corporation
*
* Currently changes from original version are:
* - porting to Tsi108-based platform and kernel 2.6 (kong.lai@tundra.com)
* - modifications to handle two ports independently and support for
* additional PHY devices (alexandre.bounine@tundra.com)
* - Get hardware information from platform device. (tie-fei.zang@freescale.com)
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/interrupt.h>
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
#include <linux/net.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/crc32.h>
#include <linux/mii.h>
#include <linux/device.h>
#include <linux/pci.h>
#include <linux/rtnetlink.h>
#include <linux/timer.h>
#include <linux/platform_device.h>
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 08:04:11 +00:00
#include <linux/gfp.h>
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
#include <asm/system.h>
#include <asm/io.h>
#include <asm/tsi108.h>
#include "tsi108_eth.h"
#define MII_READ_DELAY 10000 /* max link wait time in msec */
#define TSI108_RXRING_LEN 256
/* NOTE: The driver currently does not support receiving packets
* larger than the buffer size, so don't decrease this (unless you
* want to add such support).
*/
#define TSI108_RXBUF_SIZE 1536
#define TSI108_TXRING_LEN 256
#define TSI108_TX_INT_FREQ 64
/* Check the phy status every half a second. */
#define CHECK_PHY_INTERVAL (HZ/2)
static int tsi108_init_one(struct platform_device *pdev);
static int tsi108_ether_remove(struct platform_device *pdev);
struct tsi108_prv_data {
void __iomem *regs; /* Base of normal regs */
void __iomem *phyregs; /* Base of register bank used for PHY access */
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
struct net_device *dev;
struct napi_struct napi;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
unsigned int phy; /* Index of PHY for this interface */
unsigned int irq_num;
unsigned int id;
unsigned int phy_type;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
struct timer_list timer;/* Timer that triggers the check phy function */
unsigned int rxtail; /* Next entry in rxring to read */
unsigned int rxhead; /* Next entry in rxring to give a new buffer */
unsigned int rxfree; /* Number of free, allocated RX buffers */
unsigned int rxpending; /* Non-zero if there are still descriptors
* to be processed from a previous descriptor
* interrupt condition that has been cleared */
unsigned int txtail; /* Next TX descriptor to check status on */
unsigned int txhead; /* Next TX descriptor to use */
/* Number of free TX descriptors. This could be calculated from
* rxhead and rxtail if one descriptor were left unused to disambiguate
* full and empty conditions, but it's simpler to just keep track
* explicitly. */
unsigned int txfree;
unsigned int phy_ok; /* The PHY is currently powered on. */
/* PHY status (duplex is 1 for half, 2 for full,
* so that the default 0 indicates that neither has
* yet been configured). */
unsigned int link_up;
unsigned int speed;
unsigned int duplex;
tx_desc *txring;
rx_desc *rxring;
struct sk_buff *txskbs[TSI108_TXRING_LEN];
struct sk_buff *rxskbs[TSI108_RXRING_LEN];
dma_addr_t txdma, rxdma;
/* txlock nests in misclock and phy_lock */
spinlock_t txlock, misclock;
/* stats is used to hold the upper bits of each hardware counter,
* and tmpstats is used to hold the full values for returning
* to the caller of get_stats(). They must be separate in case
* an overflow interrupt occurs before the stats are consumed.
*/
struct net_device_stats stats;
struct net_device_stats tmpstats;
/* These stats are kept separate in hardware, thus require individual
* fields for handling carry. They are combined in get_stats.
*/
unsigned long rx_fcs; /* Add to rx_frame_errors */
unsigned long rx_short_fcs; /* Add to rx_frame_errors */
unsigned long rx_long_fcs; /* Add to rx_frame_errors */
unsigned long rx_underruns; /* Add to rx_length_errors */
unsigned long rx_overruns; /* Add to rx_length_errors */
unsigned long tx_coll_abort; /* Add to tx_aborted_errors/collisions */
unsigned long tx_pause_drop; /* Add to tx_aborted_errors */
unsigned long mc_hash[16];
u32 msg_enable; /* debug message level */
struct mii_if_info mii_if;
unsigned int init_media;
};
/* Structure for a device driver */
static struct platform_driver tsi_eth_driver = {
.probe = tsi108_init_one,
.remove = tsi108_ether_remove,
.driver = {
.name = "tsi-ethernet",
.owner = THIS_MODULE,
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
},
};
static void tsi108_timed_checker(unsigned long dev_ptr);
static void dump_eth_one(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
printk("Dumping %s...\n", dev->name);
printk("intstat %x intmask %x phy_ok %d"
" link %d speed %d duplex %d\n",
TSI_READ(TSI108_EC_INTSTAT),
TSI_READ(TSI108_EC_INTMASK), data->phy_ok,
data->link_up, data->speed, data->duplex);
printk("TX: head %d, tail %d, free %d, stat %x, estat %x, err %x\n",
data->txhead, data->txtail, data->txfree,
TSI_READ(TSI108_EC_TXSTAT),
TSI_READ(TSI108_EC_TXESTAT),
TSI_READ(TSI108_EC_TXERR));
printk("RX: head %d, tail %d, free %d, stat %x,"
" estat %x, err %x, pending %d\n\n",
data->rxhead, data->rxtail, data->rxfree,
TSI_READ(TSI108_EC_RXSTAT),
TSI_READ(TSI108_EC_RXESTAT),
TSI_READ(TSI108_EC_RXERR), data->rxpending);
}
/* Synchronization is needed between the thread and up/down events.
* Note that the PHY is accessed through the same registers for both
* interfaces, so this can't be made interface-specific.
*/
static DEFINE_SPINLOCK(phy_lock);
static int tsi108_read_mii(struct tsi108_prv_data *data, int reg)
{
unsigned i;
TSI_WRITE_PHY(TSI108_MAC_MII_ADDR,
(data->phy << TSI108_MAC_MII_ADDR_PHY) |
(reg << TSI108_MAC_MII_ADDR_REG));
TSI_WRITE_PHY(TSI108_MAC_MII_CMD, 0);
TSI_WRITE_PHY(TSI108_MAC_MII_CMD, TSI108_MAC_MII_CMD_READ);
for (i = 0; i < 100; i++) {
if (!(TSI_READ_PHY(TSI108_MAC_MII_IND) &
(TSI108_MAC_MII_IND_NOTVALID | TSI108_MAC_MII_IND_BUSY)))
break;
udelay(10);
}
if (i == 100)
return 0xffff;
else
return TSI_READ_PHY(TSI108_MAC_MII_DATAIN);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
static void tsi108_write_mii(struct tsi108_prv_data *data,
int reg, u16 val)
{
unsigned i = 100;
TSI_WRITE_PHY(TSI108_MAC_MII_ADDR,
(data->phy << TSI108_MAC_MII_ADDR_PHY) |
(reg << TSI108_MAC_MII_ADDR_REG));
TSI_WRITE_PHY(TSI108_MAC_MII_DATAOUT, val);
while (i--) {
if(!(TSI_READ_PHY(TSI108_MAC_MII_IND) &
TSI108_MAC_MII_IND_BUSY))
break;
udelay(10);
}
}
static int tsi108_mdio_read(struct net_device *dev, int addr, int reg)
{
struct tsi108_prv_data *data = netdev_priv(dev);
return tsi108_read_mii(data, reg);
}
static void tsi108_mdio_write(struct net_device *dev, int addr, int reg, int val)
{
struct tsi108_prv_data *data = netdev_priv(dev);
tsi108_write_mii(data, reg, val);
}
static inline void tsi108_write_tbi(struct tsi108_prv_data *data,
int reg, u16 val)
{
unsigned i = 1000;
TSI_WRITE(TSI108_MAC_MII_ADDR,
(0x1e << TSI108_MAC_MII_ADDR_PHY)
| (reg << TSI108_MAC_MII_ADDR_REG));
TSI_WRITE(TSI108_MAC_MII_DATAOUT, val);
while(i--) {
if(!(TSI_READ(TSI108_MAC_MII_IND) & TSI108_MAC_MII_IND_BUSY))
return;
udelay(10);
}
printk(KERN_ERR "%s function time out\n", __func__);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
static int mii_speed(struct mii_if_info *mii)
{
int advert, lpa, val, media;
int lpa2 = 0;
int speed;
if (!mii_link_ok(mii))
return 0;
val = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_BMSR);
if ((val & BMSR_ANEGCOMPLETE) == 0)
return 0;
advert = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_ADVERTISE);
lpa = (*mii->mdio_read) (mii->dev, mii->phy_id, MII_LPA);
media = mii_nway_result(advert & lpa);
if (mii->supports_gmii)
lpa2 = mii->mdio_read(mii->dev, mii->phy_id, MII_STAT1000);
speed = lpa2 & (LPA_1000FULL | LPA_1000HALF) ? 1000 :
(media & (ADVERTISE_100FULL | ADVERTISE_100HALF) ? 100 : 10);
return speed;
}
static void tsi108_check_phy(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 mac_cfg2_reg, portctrl_reg;
u32 duplex;
u32 speed;
unsigned long flags;
spin_lock_irqsave(&phy_lock, flags);
if (!data->phy_ok)
goto out;
duplex = mii_check_media(&data->mii_if, netif_msg_link(data), data->init_media);
data->init_media = 0;
if (netif_carrier_ok(dev)) {
speed = mii_speed(&data->mii_if);
if ((speed != data->speed) || duplex) {
mac_cfg2_reg = TSI_READ(TSI108_MAC_CFG2);
portctrl_reg = TSI_READ(TSI108_EC_PORTCTRL);
mac_cfg2_reg &= ~TSI108_MAC_CFG2_IFACE_MASK;
if (speed == 1000) {
mac_cfg2_reg |= TSI108_MAC_CFG2_GIG;
portctrl_reg &= ~TSI108_EC_PORTCTRL_NOGIG;
} else {
mac_cfg2_reg |= TSI108_MAC_CFG2_NOGIG;
portctrl_reg |= TSI108_EC_PORTCTRL_NOGIG;
}
data->speed = speed;
if (data->mii_if.full_duplex) {
mac_cfg2_reg |= TSI108_MAC_CFG2_FULLDUPLEX;
portctrl_reg &= ~TSI108_EC_PORTCTRL_HALFDUPLEX;
data->duplex = 2;
} else {
mac_cfg2_reg &= ~TSI108_MAC_CFG2_FULLDUPLEX;
portctrl_reg |= TSI108_EC_PORTCTRL_HALFDUPLEX;
data->duplex = 1;
}
TSI_WRITE(TSI108_MAC_CFG2, mac_cfg2_reg);
TSI_WRITE(TSI108_EC_PORTCTRL, portctrl_reg);
}
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if (data->link_up == 0) {
/* The manual says it can take 3-4 usecs for the speed change
* to take effect.
*/
udelay(5);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
spin_lock(&data->txlock);
if (is_valid_ether_addr(dev->dev_addr) && data->txfree)
netif_wake_queue(dev);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
data->link_up = 1;
spin_unlock(&data->txlock);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
} else {
if (data->link_up == 1) {
netif_stop_queue(dev);
data->link_up = 0;
printk(KERN_NOTICE "%s : link is down\n", dev->name);
}
goto out;
}
out:
spin_unlock_irqrestore(&phy_lock, flags);
}
static inline void
tsi108_stat_carry_one(int carry, int carry_bit, int carry_shift,
unsigned long *upper)
{
if (carry & carry_bit)
*upper += carry_shift;
}
static void tsi108_stat_carry(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 carry1, carry2;
spin_lock_irq(&data->misclock);
carry1 = TSI_READ(TSI108_STAT_CARRY1);
carry2 = TSI_READ(TSI108_STAT_CARRY2);
TSI_WRITE(TSI108_STAT_CARRY1, carry1);
TSI_WRITE(TSI108_STAT_CARRY2, carry2);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXBYTES,
TSI108_STAT_RXBYTES_CARRY, &data->stats.rx_bytes);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXPKTS,
TSI108_STAT_RXPKTS_CARRY,
&data->stats.rx_packets);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXFCS,
TSI108_STAT_RXFCS_CARRY, &data->rx_fcs);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXMCAST,
TSI108_STAT_RXMCAST_CARRY,
&data->stats.multicast);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXALIGN,
TSI108_STAT_RXALIGN_CARRY,
&data->stats.rx_frame_errors);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXLENGTH,
TSI108_STAT_RXLENGTH_CARRY,
&data->stats.rx_length_errors);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXRUNT,
TSI108_STAT_RXRUNT_CARRY, &data->rx_underruns);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXJUMBO,
TSI108_STAT_RXJUMBO_CARRY, &data->rx_overruns);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXFRAG,
TSI108_STAT_RXFRAG_CARRY, &data->rx_short_fcs);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXJABBER,
TSI108_STAT_RXJABBER_CARRY, &data->rx_long_fcs);
tsi108_stat_carry_one(carry1, TSI108_STAT_CARRY1_RXDROP,
TSI108_STAT_RXDROP_CARRY,
&data->stats.rx_missed_errors);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXBYTES,
TSI108_STAT_TXBYTES_CARRY, &data->stats.tx_bytes);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXPKTS,
TSI108_STAT_TXPKTS_CARRY,
&data->stats.tx_packets);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXEXDEF,
TSI108_STAT_TXEXDEF_CARRY,
&data->stats.tx_aborted_errors);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXEXCOL,
TSI108_STAT_TXEXCOL_CARRY, &data->tx_coll_abort);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXTCOL,
TSI108_STAT_TXTCOL_CARRY,
&data->stats.collisions);
tsi108_stat_carry_one(carry2, TSI108_STAT_CARRY2_TXPAUSE,
TSI108_STAT_TXPAUSEDROP_CARRY,
&data->tx_pause_drop);
spin_unlock_irq(&data->misclock);
}
/* Read a stat counter atomically with respect to carries.
* data->misclock must be held.
*/
static inline unsigned long
tsi108_read_stat(struct tsi108_prv_data * data, int reg, int carry_bit,
int carry_shift, unsigned long *upper)
{
int carryreg;
unsigned long val;
if (reg < 0xb0)
carryreg = TSI108_STAT_CARRY1;
else
carryreg = TSI108_STAT_CARRY2;
again:
val = TSI_READ(reg) | *upper;
/* Check to see if it overflowed, but the interrupt hasn't
* been serviced yet. If so, handle the carry here, and
* try again.
*/
if (unlikely(TSI_READ(carryreg) & carry_bit)) {
*upper += carry_shift;
TSI_WRITE(carryreg, carry_bit);
goto again;
}
return val;
}
static struct net_device_stats *tsi108_get_stats(struct net_device *dev)
{
unsigned long excol;
struct tsi108_prv_data *data = netdev_priv(dev);
spin_lock_irq(&data->misclock);
data->tmpstats.rx_packets =
tsi108_read_stat(data, TSI108_STAT_RXPKTS,
TSI108_STAT_CARRY1_RXPKTS,
TSI108_STAT_RXPKTS_CARRY, &data->stats.rx_packets);
data->tmpstats.tx_packets =
tsi108_read_stat(data, TSI108_STAT_TXPKTS,
TSI108_STAT_CARRY2_TXPKTS,
TSI108_STAT_TXPKTS_CARRY, &data->stats.tx_packets);
data->tmpstats.rx_bytes =
tsi108_read_stat(data, TSI108_STAT_RXBYTES,
TSI108_STAT_CARRY1_RXBYTES,
TSI108_STAT_RXBYTES_CARRY, &data->stats.rx_bytes);
data->tmpstats.tx_bytes =
tsi108_read_stat(data, TSI108_STAT_TXBYTES,
TSI108_STAT_CARRY2_TXBYTES,
TSI108_STAT_TXBYTES_CARRY, &data->stats.tx_bytes);
data->tmpstats.multicast =
tsi108_read_stat(data, TSI108_STAT_RXMCAST,
TSI108_STAT_CARRY1_RXMCAST,
TSI108_STAT_RXMCAST_CARRY, &data->stats.multicast);
excol = tsi108_read_stat(data, TSI108_STAT_TXEXCOL,
TSI108_STAT_CARRY2_TXEXCOL,
TSI108_STAT_TXEXCOL_CARRY,
&data->tx_coll_abort);
data->tmpstats.collisions =
tsi108_read_stat(data, TSI108_STAT_TXTCOL,
TSI108_STAT_CARRY2_TXTCOL,
TSI108_STAT_TXTCOL_CARRY, &data->stats.collisions);
data->tmpstats.collisions += excol;
data->tmpstats.rx_length_errors =
tsi108_read_stat(data, TSI108_STAT_RXLENGTH,
TSI108_STAT_CARRY1_RXLENGTH,
TSI108_STAT_RXLENGTH_CARRY,
&data->stats.rx_length_errors);
data->tmpstats.rx_length_errors +=
tsi108_read_stat(data, TSI108_STAT_RXRUNT,
TSI108_STAT_CARRY1_RXRUNT,
TSI108_STAT_RXRUNT_CARRY, &data->rx_underruns);
data->tmpstats.rx_length_errors +=
tsi108_read_stat(data, TSI108_STAT_RXJUMBO,
TSI108_STAT_CARRY1_RXJUMBO,
TSI108_STAT_RXJUMBO_CARRY, &data->rx_overruns);
data->tmpstats.rx_frame_errors =
tsi108_read_stat(data, TSI108_STAT_RXALIGN,
TSI108_STAT_CARRY1_RXALIGN,
TSI108_STAT_RXALIGN_CARRY,
&data->stats.rx_frame_errors);
data->tmpstats.rx_frame_errors +=
tsi108_read_stat(data, TSI108_STAT_RXFCS,
TSI108_STAT_CARRY1_RXFCS, TSI108_STAT_RXFCS_CARRY,
&data->rx_fcs);
data->tmpstats.rx_frame_errors +=
tsi108_read_stat(data, TSI108_STAT_RXFRAG,
TSI108_STAT_CARRY1_RXFRAG,
TSI108_STAT_RXFRAG_CARRY, &data->rx_short_fcs);
data->tmpstats.rx_missed_errors =
tsi108_read_stat(data, TSI108_STAT_RXDROP,
TSI108_STAT_CARRY1_RXDROP,
TSI108_STAT_RXDROP_CARRY,
&data->stats.rx_missed_errors);
/* These three are maintained by software. */
data->tmpstats.rx_fifo_errors = data->stats.rx_fifo_errors;
data->tmpstats.rx_crc_errors = data->stats.rx_crc_errors;
data->tmpstats.tx_aborted_errors =
tsi108_read_stat(data, TSI108_STAT_TXEXDEF,
TSI108_STAT_CARRY2_TXEXDEF,
TSI108_STAT_TXEXDEF_CARRY,
&data->stats.tx_aborted_errors);
data->tmpstats.tx_aborted_errors +=
tsi108_read_stat(data, TSI108_STAT_TXPAUSEDROP,
TSI108_STAT_CARRY2_TXPAUSE,
TSI108_STAT_TXPAUSEDROP_CARRY,
&data->tx_pause_drop);
data->tmpstats.tx_aborted_errors += excol;
data->tmpstats.tx_errors = data->tmpstats.tx_aborted_errors;
data->tmpstats.rx_errors = data->tmpstats.rx_length_errors +
data->tmpstats.rx_crc_errors +
data->tmpstats.rx_frame_errors +
data->tmpstats.rx_fifo_errors + data->tmpstats.rx_missed_errors;
spin_unlock_irq(&data->misclock);
return &data->tmpstats;
}
static void tsi108_restart_rx(struct tsi108_prv_data * data, struct net_device *dev)
{
TSI_WRITE(TSI108_EC_RXQ_PTRHIGH,
TSI108_EC_RXQ_PTRHIGH_VALID);
TSI_WRITE(TSI108_EC_RXCTRL, TSI108_EC_RXCTRL_GO
| TSI108_EC_RXCTRL_QUEUE0);
}
static void tsi108_restart_tx(struct tsi108_prv_data * data)
{
TSI_WRITE(TSI108_EC_TXQ_PTRHIGH,
TSI108_EC_TXQ_PTRHIGH_VALID);
TSI_WRITE(TSI108_EC_TXCTRL, TSI108_EC_TXCTRL_IDLEINT |
TSI108_EC_TXCTRL_GO | TSI108_EC_TXCTRL_QUEUE0);
}
/* txlock must be held by caller, with IRQs disabled, and
* with permission to re-enable them when the lock is dropped.
*/
static void tsi108_complete_tx(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
int tx;
struct sk_buff *skb;
int release = 0;
while (!data->txfree || data->txhead != data->txtail) {
tx = data->txtail;
if (data->txring[tx].misc & TSI108_TX_OWN)
break;
skb = data->txskbs[tx];
if (!(data->txring[tx].misc & TSI108_TX_OK))
printk("%s: bad tx packet, misc %x\n",
dev->name, data->txring[tx].misc);
data->txtail = (data->txtail + 1) % TSI108_TXRING_LEN;
data->txfree++;
if (data->txring[tx].misc & TSI108_TX_EOF) {
dev_kfree_skb_any(skb);
release++;
}
}
if (release) {
if (is_valid_ether_addr(dev->dev_addr) && data->link_up)
netif_wake_queue(dev);
}
}
static int tsi108_send_packet(struct sk_buff * skb, struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
int frags = skb_shinfo(skb)->nr_frags + 1;
int i;
if (!data->phy_ok && net_ratelimit())
printk(KERN_ERR "%s: Transmit while PHY is down!\n", dev->name);
if (!data->link_up) {
printk(KERN_ERR "%s: Transmit while link is down!\n",
dev->name);
netif_stop_queue(dev);
return NETDEV_TX_BUSY;
}
if (data->txfree < MAX_SKB_FRAGS + 1) {
netif_stop_queue(dev);
if (net_ratelimit())
printk(KERN_ERR "%s: Transmit with full tx ring!\n",
dev->name);
return NETDEV_TX_BUSY;
}
if (data->txfree - frags < MAX_SKB_FRAGS + 1) {
netif_stop_queue(dev);
}
spin_lock_irq(&data->txlock);
for (i = 0; i < frags; i++) {
int misc = 0;
int tx = data->txhead;
/* This is done to mark every TSI108_TX_INT_FREQ tx buffers with
* the interrupt bit. TX descriptor-complete interrupts are
* enabled when the queue fills up, and masked when there is
* still free space. This way, when saturating the outbound
* link, the tx interrupts are kept to a reasonable level.
* When the queue is not full, reclamation of skbs still occurs
* as new packets are transmitted, or on a queue-empty
* interrupt.
*/
if ((tx % TSI108_TX_INT_FREQ == 0) &&
((TSI108_TXRING_LEN - data->txfree) >= TSI108_TX_INT_FREQ))
misc = TSI108_TX_INT;
data->txskbs[tx] = skb;
if (i == 0) {
data->txring[tx].buf0 = dma_map_single(NULL, skb->data,
skb_headlen(skb), DMA_TO_DEVICE);
data->txring[tx].len = skb_headlen(skb);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
misc |= TSI108_TX_SOF;
} else {
skb_frag_t *frag = &skb_shinfo(skb)->frags[i - 1];
data->txring[tx].buf0 =
dma_map_page(NULL, frag->page, frag->page_offset,
frag->size, DMA_TO_DEVICE);
data->txring[tx].len = frag->size;
}
if (i == frags - 1)
misc |= TSI108_TX_EOF;
if (netif_msg_pktdata(data)) {
int i;
printk("%s: Tx Frame contents (%d)\n", dev->name,
skb->len);
for (i = 0; i < skb->len; i++)
printk(" %2.2x", skb->data[i]);
printk(".\n");
}
data->txring[tx].misc = misc | TSI108_TX_OWN;
data->txhead = (data->txhead + 1) % TSI108_TXRING_LEN;
data->txfree--;
}
tsi108_complete_tx(dev);
/* This must be done after the check for completed tx descriptors,
* so that the tail pointer is correct.
*/
if (!(TSI_READ(TSI108_EC_TXSTAT) & TSI108_EC_TXSTAT_QUEUE0))
tsi108_restart_tx(data);
spin_unlock_irq(&data->txlock);
return NETDEV_TX_OK;
}
static int tsi108_complete_rx(struct net_device *dev, int budget)
{
struct tsi108_prv_data *data = netdev_priv(dev);
int done = 0;
while (data->rxfree && done != budget) {
int rx = data->rxtail;
struct sk_buff *skb;
if (data->rxring[rx].misc & TSI108_RX_OWN)
break;
skb = data->rxskbs[rx];
data->rxtail = (data->rxtail + 1) % TSI108_RXRING_LEN;
data->rxfree--;
done++;
if (data->rxring[rx].misc & TSI108_RX_BAD) {
spin_lock_irq(&data->misclock);
if (data->rxring[rx].misc & TSI108_RX_CRC)
data->stats.rx_crc_errors++;
if (data->rxring[rx].misc & TSI108_RX_OVER)
data->stats.rx_fifo_errors++;
spin_unlock_irq(&data->misclock);
dev_kfree_skb_any(skb);
continue;
}
if (netif_msg_pktdata(data)) {
int i;
printk("%s: Rx Frame contents (%d)\n",
dev->name, data->rxring[rx].len);
for (i = 0; i < data->rxring[rx].len; i++)
printk(" %2.2x", skb->data[i]);
printk(".\n");
}
skb_put(skb, data->rxring[rx].len);
skb->protocol = eth_type_trans(skb, dev);
netif_receive_skb(skb);
}
return done;
}
static int tsi108_refill_rx(struct net_device *dev, int budget)
{
struct tsi108_prv_data *data = netdev_priv(dev);
int done = 0;
while (data->rxfree != TSI108_RXRING_LEN && done != budget) {
int rx = data->rxhead;
struct sk_buff *skb;
skb = netdev_alloc_skb_ip_align(dev, TSI108_RXBUF_SIZE);
data->rxskbs[rx] = skb;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if (!skb)
break;
data->rxring[rx].buf0 = dma_map_single(NULL, skb->data,
TSI108_RX_SKB_SIZE,
DMA_FROM_DEVICE);
/* Sometimes the hardware sets blen to zero after packet
* reception, even though the manual says that it's only ever
* modified by the driver.
*/
data->rxring[rx].blen = TSI108_RX_SKB_SIZE;
data->rxring[rx].misc = TSI108_RX_OWN | TSI108_RX_INT;
data->rxhead = (data->rxhead + 1) % TSI108_RXRING_LEN;
data->rxfree++;
done++;
}
if (done != 0 && !(TSI_READ(TSI108_EC_RXSTAT) &
TSI108_EC_RXSTAT_QUEUE0))
tsi108_restart_rx(data, dev);
return done;
}
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
static int tsi108_poll(struct napi_struct *napi, int budget)
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
{
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
struct tsi108_prv_data *data = container_of(napi, struct tsi108_prv_data, napi);
struct net_device *dev = data->dev;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
u32 estat = TSI_READ(TSI108_EC_RXESTAT);
u32 intstat = TSI_READ(TSI108_EC_INTSTAT);
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
int num_received = 0, num_filled = 0;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
intstat &= TSI108_INT_RXQUEUE0 | TSI108_INT_RXTHRESH |
TSI108_INT_RXOVERRUN | TSI108_INT_RXERROR | TSI108_INT_RXWAIT;
TSI_WRITE(TSI108_EC_RXESTAT, estat);
TSI_WRITE(TSI108_EC_INTSTAT, intstat);
if (data->rxpending || (estat & TSI108_EC_RXESTAT_Q0_DESCINT))
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
num_received = tsi108_complete_rx(dev, budget);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
/* This should normally fill no more slots than the number of
* packets received in tsi108_complete_rx(). The exception
* is when we previously ran out of memory for RX SKBs. In that
* case, it's helpful to obey the budget, not only so that the
* CPU isn't hogged, but so that memory (which may still be low)
* is not hogged by one device.
*
* A work unit is considered to be two SKBs to allow us to catch
* up when the ring has shrunk due to out-of-memory but we're
* still removing the full budget's worth of packets each time.
*/
if (data->rxfree < TSI108_RXRING_LEN)
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
num_filled = tsi108_refill_rx(dev, budget * 2);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if (intstat & TSI108_INT_RXERROR) {
u32 err = TSI_READ(TSI108_EC_RXERR);
TSI_WRITE(TSI108_EC_RXERR, err);
if (err) {
if (net_ratelimit())
printk(KERN_DEBUG "%s: RX error %x\n",
dev->name, err);
if (!(TSI_READ(TSI108_EC_RXSTAT) &
TSI108_EC_RXSTAT_QUEUE0))
tsi108_restart_rx(data, dev);
}
}
if (intstat & TSI108_INT_RXOVERRUN) {
spin_lock_irq(&data->misclock);
data->stats.rx_fifo_errors++;
spin_unlock_irq(&data->misclock);
}
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
if (num_received < budget) {
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
data->rxpending = 0;
napi_complete(napi);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
TSI_WRITE(TSI108_EC_INTMASK,
TSI_READ(TSI108_EC_INTMASK)
& ~(TSI108_INT_RXQUEUE0
| TSI108_INT_RXTHRESH |
TSI108_INT_RXOVERRUN |
TSI108_INT_RXERROR |
TSI108_INT_RXWAIT));
} else {
data->rxpending = 1;
}
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
return num_received;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
static void tsi108_rx_int(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
/* A race could cause dev to already be scheduled, so it's not an
* error if that happens (and interrupts shouldn't be re-masked,
* because that can cause harmful races, if poll has already
* unmasked them but not cleared LINK_STATE_SCHED).
*
* This can happen if this code races with tsi108_poll(), which masks
* the interrupts after tsi108_irq_one() read the mask, but before
* napi_schedule is called. It could also happen due to calls
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
* from tsi108_check_rxring().
*/
if (napi_schedule_prep(&data->napi)) {
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
/* Mask, rather than ack, the receive interrupts. The ack
* will happen in tsi108_poll().
*/
TSI_WRITE(TSI108_EC_INTMASK,
TSI_READ(TSI108_EC_INTMASK) |
TSI108_INT_RXQUEUE0
| TSI108_INT_RXTHRESH |
TSI108_INT_RXOVERRUN | TSI108_INT_RXERROR |
TSI108_INT_RXWAIT);
__napi_schedule(&data->napi);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
} else {
if (!netif_running(dev)) {
/* This can happen if an interrupt occurs while the
* interface is being brought down, as the START
* bit is cleared before the stop function is called.
*
* In this case, the interrupts must be masked, or
* they will continue indefinitely.
*
* There's a race here if the interface is brought down
* and then up in rapid succession, as the device could
* be made running after the above check and before
* the masking below. This will only happen if the IRQ
* thread has a lower priority than the task brining
* up the interface. Fixing this race would likely
* require changes in generic code.
*/
TSI_WRITE(TSI108_EC_INTMASK,
TSI_READ
(TSI108_EC_INTMASK) |
TSI108_INT_RXQUEUE0 |
TSI108_INT_RXTHRESH |
TSI108_INT_RXOVERRUN |
TSI108_INT_RXERROR |
TSI108_INT_RXWAIT);
}
}
}
/* If the RX ring has run out of memory, try periodically
* to allocate some more, as otherwise poll would never
* get called (apart from the initial end-of-queue condition).
*
* This is called once per second (by default) from the thread.
*/
static void tsi108_check_rxring(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
/* A poll is scheduled, as opposed to caling tsi108_refill_rx
* directly, so as to keep the receive path single-threaded
* (and thus not needing a lock).
*/
if (netif_running(dev) && data->rxfree < TSI108_RXRING_LEN / 4)
tsi108_rx_int(dev);
}
static void tsi108_tx_int(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 estat = TSI_READ(TSI108_EC_TXESTAT);
TSI_WRITE(TSI108_EC_TXESTAT, estat);
TSI_WRITE(TSI108_EC_INTSTAT, TSI108_INT_TXQUEUE0 |
TSI108_INT_TXIDLE | TSI108_INT_TXERROR);
if (estat & TSI108_EC_TXESTAT_Q0_ERR) {
u32 err = TSI_READ(TSI108_EC_TXERR);
TSI_WRITE(TSI108_EC_TXERR, err);
if (err && net_ratelimit())
printk(KERN_ERR "%s: TX error %x\n", dev->name, err);
}
if (estat & (TSI108_EC_TXESTAT_Q0_DESCINT | TSI108_EC_TXESTAT_Q0_EOQ)) {
spin_lock(&data->txlock);
tsi108_complete_tx(dev);
spin_unlock(&data->txlock);
}
}
static irqreturn_t tsi108_irq(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct tsi108_prv_data *data = netdev_priv(dev);
u32 stat = TSI_READ(TSI108_EC_INTSTAT);
if (!(stat & TSI108_INT_ANY))
return IRQ_NONE; /* Not our interrupt */
stat &= ~TSI_READ(TSI108_EC_INTMASK);
if (stat & (TSI108_INT_TXQUEUE0 | TSI108_INT_TXIDLE |
TSI108_INT_TXERROR))
tsi108_tx_int(dev);
if (stat & (TSI108_INT_RXQUEUE0 | TSI108_INT_RXTHRESH |
TSI108_INT_RXWAIT | TSI108_INT_RXOVERRUN |
TSI108_INT_RXERROR))
tsi108_rx_int(dev);
if (stat & TSI108_INT_SFN) {
if (net_ratelimit())
printk(KERN_DEBUG "%s: SFN error\n", dev->name);
TSI_WRITE(TSI108_EC_INTSTAT, TSI108_INT_SFN);
}
if (stat & TSI108_INT_STATCARRY) {
tsi108_stat_carry(dev);
TSI_WRITE(TSI108_EC_INTSTAT, TSI108_INT_STATCARRY);
}
return IRQ_HANDLED;
}
static void tsi108_stop_ethernet(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
int i = 1000;
/* Disable all TX and RX queues ... */
TSI_WRITE(TSI108_EC_TXCTRL, 0);
TSI_WRITE(TSI108_EC_RXCTRL, 0);
/* ...and wait for them to become idle */
while(i--) {
if(!(TSI_READ(TSI108_EC_TXSTAT) & TSI108_EC_TXSTAT_ACTIVE))
break;
udelay(10);
}
i = 1000;
while(i--){
if(!(TSI_READ(TSI108_EC_RXSTAT) & TSI108_EC_RXSTAT_ACTIVE))
return;
udelay(10);
}
printk(KERN_ERR "%s function time out\n", __func__);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
static void tsi108_reset_ether(struct tsi108_prv_data * data)
{
TSI_WRITE(TSI108_MAC_CFG1, TSI108_MAC_CFG1_SOFTRST);
udelay(100);
TSI_WRITE(TSI108_MAC_CFG1, 0);
TSI_WRITE(TSI108_EC_PORTCTRL, TSI108_EC_PORTCTRL_STATRST);
udelay(100);
TSI_WRITE(TSI108_EC_PORTCTRL,
TSI_READ(TSI108_EC_PORTCTRL) &
~TSI108_EC_PORTCTRL_STATRST);
TSI_WRITE(TSI108_EC_TXCFG, TSI108_EC_TXCFG_RST);
udelay(100);
TSI_WRITE(TSI108_EC_TXCFG,
TSI_READ(TSI108_EC_TXCFG) &
~TSI108_EC_TXCFG_RST);
TSI_WRITE(TSI108_EC_RXCFG, TSI108_EC_RXCFG_RST);
udelay(100);
TSI_WRITE(TSI108_EC_RXCFG,
TSI_READ(TSI108_EC_RXCFG) &
~TSI108_EC_RXCFG_RST);
TSI_WRITE(TSI108_MAC_MII_MGMT_CFG,
TSI_READ(TSI108_MAC_MII_MGMT_CFG) |
TSI108_MAC_MII_MGMT_RST);
udelay(100);
TSI_WRITE(TSI108_MAC_MII_MGMT_CFG,
(TSI_READ(TSI108_MAC_MII_MGMT_CFG) &
~(TSI108_MAC_MII_MGMT_RST |
TSI108_MAC_MII_MGMT_CLK)) | 0x07);
}
static int tsi108_get_mac(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 word1 = TSI_READ(TSI108_MAC_ADDR1);
u32 word2 = TSI_READ(TSI108_MAC_ADDR2);
/* Note that the octets are reversed from what the manual says,
* producing an even weirder ordering...
*/
if (word2 == 0 && word1 == 0) {
dev->dev_addr[0] = 0x00;
dev->dev_addr[1] = 0x06;
dev->dev_addr[2] = 0xd2;
dev->dev_addr[3] = 0x00;
dev->dev_addr[4] = 0x00;
if (0x8 == data->phy)
dev->dev_addr[5] = 0x01;
else
dev->dev_addr[5] = 0x02;
word2 = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 24);
word1 = (dev->dev_addr[2] << 0) | (dev->dev_addr[3] << 8) |
(dev->dev_addr[4] << 16) | (dev->dev_addr[5] << 24);
TSI_WRITE(TSI108_MAC_ADDR1, word1);
TSI_WRITE(TSI108_MAC_ADDR2, word2);
} else {
dev->dev_addr[0] = (word2 >> 16) & 0xff;
dev->dev_addr[1] = (word2 >> 24) & 0xff;
dev->dev_addr[2] = (word1 >> 0) & 0xff;
dev->dev_addr[3] = (word1 >> 8) & 0xff;
dev->dev_addr[4] = (word1 >> 16) & 0xff;
dev->dev_addr[5] = (word1 >> 24) & 0xff;
}
if (!is_valid_ether_addr(dev->dev_addr)) {
printk(KERN_ERR
"%s: Invalid MAC address. word1: %08x, word2: %08x\n",
dev->name, word1, word2);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
return -EINVAL;
}
return 0;
}
static int tsi108_set_mac(struct net_device *dev, void *addr)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 word1, word2;
int i;
if (!is_valid_ether_addr(addr))
return -EINVAL;
for (i = 0; i < 6; i++)
/* +2 is for the offset of the HW addr type */
dev->dev_addr[i] = ((unsigned char *)addr)[i + 2];
word2 = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 24);
word1 = (dev->dev_addr[2] << 0) | (dev->dev_addr[3] << 8) |
(dev->dev_addr[4] << 16) | (dev->dev_addr[5] << 24);
spin_lock_irq(&data->misclock);
TSI_WRITE(TSI108_MAC_ADDR1, word1);
TSI_WRITE(TSI108_MAC_ADDR2, word2);
spin_lock(&data->txlock);
if (data->txfree && data->link_up)
netif_wake_queue(dev);
spin_unlock(&data->txlock);
spin_unlock_irq(&data->misclock);
return 0;
}
/* Protected by dev->xmit_lock. */
static void tsi108_set_rx_mode(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 rxcfg = TSI_READ(TSI108_EC_RXCFG);
if (dev->flags & IFF_PROMISC) {
rxcfg &= ~(TSI108_EC_RXCFG_UC_HASH | TSI108_EC_RXCFG_MC_HASH);
rxcfg |= TSI108_EC_RXCFG_UFE | TSI108_EC_RXCFG_MFE;
goto out;
}
rxcfg &= ~(TSI108_EC_RXCFG_UFE | TSI108_EC_RXCFG_MFE);
if (dev->flags & IFF_ALLMULTI || !netdev_mc_empty(dev)) {
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
int i;
struct netdev_hw_addr *ha;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
rxcfg |= TSI108_EC_RXCFG_MFE | TSI108_EC_RXCFG_MC_HASH;
memset(data->mc_hash, 0, sizeof(data->mc_hash));
netdev_for_each_mc_addr(ha, dev) {
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
u32 hash, crc;
crc = ether_crc(6, ha->addr);
hash = crc >> 23;
__set_bit(hash, &data->mc_hash[0]);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
}
TSI_WRITE(TSI108_EC_HASHADDR,
TSI108_EC_HASHADDR_AUTOINC |
TSI108_EC_HASHADDR_MCAST);
for (i = 0; i < 16; i++) {
/* The manual says that the hardware may drop
* back-to-back writes to the data register.
*/
udelay(1);
TSI_WRITE(TSI108_EC_HASHDATA,
data->mc_hash[i]);
}
}
out:
TSI_WRITE(TSI108_EC_RXCFG, rxcfg);
}
static void tsi108_init_phy(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
u32 i = 0;
u16 phyval = 0;
unsigned long flags;
spin_lock_irqsave(&phy_lock, flags);
tsi108_write_mii(data, MII_BMCR, BMCR_RESET);
while (--i) {
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if(!(tsi108_read_mii(data, MII_BMCR) & BMCR_RESET))
break;
udelay(10);
}
if (i == 0)
printk(KERN_ERR "%s function time out\n", __func__);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if (data->phy_type == TSI108_PHY_BCM54XX) {
tsi108_write_mii(data, 0x09, 0x0300);
tsi108_write_mii(data, 0x10, 0x1020);
tsi108_write_mii(data, 0x1c, 0x8c00);
}
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
tsi108_write_mii(data,
MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
while (tsi108_read_mii(data, MII_BMCR) & BMCR_ANRESTART)
cpu_relax();
/* Set G/MII mode and receive clock select in TBI control #2. The
* second port won't work if this isn't done, even though we don't
* use TBI mode.
*/
tsi108_write_tbi(data, 0x11, 0x30);
/* FIXME: It seems to take more than 2 back-to-back reads to the
* PHY_STAT register before the link up status bit is set.
*/
data->link_up = 0;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
while (!((phyval = tsi108_read_mii(data, MII_BMSR)) &
BMSR_LSTATUS)) {
if (i++ > (MII_READ_DELAY / 10)) {
break;
}
spin_unlock_irqrestore(&phy_lock, flags);
msleep(10);
spin_lock_irqsave(&phy_lock, flags);
}
data->mii_if.supports_gmii = mii_check_gmii_support(&data->mii_if);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
printk(KERN_DEBUG "PHY_STAT reg contains %08x\n", phyval);
data->phy_ok = 1;
data->init_media = 1;
spin_unlock_irqrestore(&phy_lock, flags);
}
static void tsi108_kill_phy(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
unsigned long flags;
spin_lock_irqsave(&phy_lock, flags);
tsi108_write_mii(data, MII_BMCR, BMCR_PDOWN);
data->phy_ok = 0;
spin_unlock_irqrestore(&phy_lock, flags);
}
static int tsi108_open(struct net_device *dev)
{
int i;
struct tsi108_prv_data *data = netdev_priv(dev);
unsigned int rxring_size = TSI108_RXRING_LEN * sizeof(rx_desc);
unsigned int txring_size = TSI108_TXRING_LEN * sizeof(tx_desc);
i = request_irq(data->irq_num, tsi108_irq, 0, dev->name, dev);
if (i != 0) {
printk(KERN_ERR "tsi108_eth%d: Could not allocate IRQ%d.\n",
data->id, data->irq_num);
return i;
} else {
dev->irq = data->irq_num;
printk(KERN_NOTICE
"tsi108_open : Port %d Assigned IRQ %d to %s\n",
data->id, dev->irq, dev->name);
}
data->rxring = dma_alloc_coherent(NULL, rxring_size,
&data->rxdma, GFP_KERNEL);
if (!data->rxring) {
printk(KERN_DEBUG
"TSI108_ETH: failed to allocate memory for rxring!\n");
return -ENOMEM;
} else {
memset(data->rxring, 0, rxring_size);
}
data->txring = dma_alloc_coherent(NULL, txring_size,
&data->txdma, GFP_KERNEL);
if (!data->txring) {
printk(KERN_DEBUG
"TSI108_ETH: failed to allocate memory for txring!\n");
pci_free_consistent(0, rxring_size, data->rxring, data->rxdma);
return -ENOMEM;
} else {
memset(data->txring, 0, txring_size);
}
for (i = 0; i < TSI108_RXRING_LEN; i++) {
data->rxring[i].next0 = data->rxdma + (i + 1) * sizeof(rx_desc);
data->rxring[i].blen = TSI108_RXBUF_SIZE;
data->rxring[i].vlan = 0;
}
data->rxring[TSI108_RXRING_LEN - 1].next0 = data->rxdma;
data->rxtail = 0;
data->rxhead = 0;
for (i = 0; i < TSI108_RXRING_LEN; i++) {
struct sk_buff *skb;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
skb = netdev_alloc_skb_ip_align(dev, TSI108_RXBUF_SIZE);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
if (!skb) {
/* Bah. No memory for now, but maybe we'll get
* some more later.
* For now, we'll live with the smaller ring.
*/
printk(KERN_WARNING
"%s: Could only allocate %d receive skb(s).\n",
dev->name, i);
data->rxhead = i;
break;
}
data->rxskbs[i] = skb;
data->rxskbs[i] = skb;
data->rxring[i].buf0 = virt_to_phys(data->rxskbs[i]->data);
data->rxring[i].misc = TSI108_RX_OWN | TSI108_RX_INT;
}
data->rxfree = i;
TSI_WRITE(TSI108_EC_RXQ_PTRLOW, data->rxdma);
for (i = 0; i < TSI108_TXRING_LEN; i++) {
data->txring[i].next0 = data->txdma + (i + 1) * sizeof(tx_desc);
data->txring[i].misc = 0;
}
data->txring[TSI108_TXRING_LEN - 1].next0 = data->txdma;
data->txtail = 0;
data->txhead = 0;
data->txfree = TSI108_TXRING_LEN;
TSI_WRITE(TSI108_EC_TXQ_PTRLOW, data->txdma);
tsi108_init_phy(dev);
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
napi_enable(&data->napi);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
setup_timer(&data->timer, tsi108_timed_checker, (unsigned long)dev);
mod_timer(&data->timer, jiffies + 1);
tsi108_restart_rx(data, dev);
TSI_WRITE(TSI108_EC_INTSTAT, ~0);
TSI_WRITE(TSI108_EC_INTMASK,
~(TSI108_INT_TXQUEUE0 | TSI108_INT_RXERROR |
TSI108_INT_RXTHRESH | TSI108_INT_RXQUEUE0 |
TSI108_INT_RXOVERRUN | TSI108_INT_RXWAIT |
TSI108_INT_SFN | TSI108_INT_STATCARRY));
TSI_WRITE(TSI108_MAC_CFG1,
TSI108_MAC_CFG1_RXEN | TSI108_MAC_CFG1_TXEN);
netif_start_queue(dev);
return 0;
}
static int tsi108_close(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
netif_stop_queue(dev);
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
napi_disable(&data->napi);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
del_timer_sync(&data->timer);
tsi108_stop_ethernet(dev);
tsi108_kill_phy(dev);
TSI_WRITE(TSI108_EC_INTMASK, ~0);
TSI_WRITE(TSI108_MAC_CFG1, 0);
/* Check for any pending TX packets, and drop them. */
while (!data->txfree || data->txhead != data->txtail) {
int tx = data->txtail;
struct sk_buff *skb;
skb = data->txskbs[tx];
data->txtail = (data->txtail + 1) % TSI108_TXRING_LEN;
data->txfree++;
dev_kfree_skb(skb);
}
free_irq(data->irq_num, dev);
/* Discard the RX ring. */
while (data->rxfree) {
int rx = data->rxtail;
struct sk_buff *skb;
skb = data->rxskbs[rx];
data->rxtail = (data->rxtail + 1) % TSI108_RXRING_LEN;
data->rxfree--;
dev_kfree_skb(skb);
}
dma_free_coherent(0,
TSI108_RXRING_LEN * sizeof(rx_desc),
data->rxring, data->rxdma);
dma_free_coherent(0,
TSI108_TXRING_LEN * sizeof(tx_desc),
data->txring, data->txdma);
return 0;
}
static void tsi108_init_mac(struct net_device *dev)
{
struct tsi108_prv_data *data = netdev_priv(dev);
TSI_WRITE(TSI108_MAC_CFG2, TSI108_MAC_CFG2_DFLT_PREAMBLE |
TSI108_MAC_CFG2_PADCRC);
TSI_WRITE(TSI108_EC_TXTHRESH,
(192 << TSI108_EC_TXTHRESH_STARTFILL) |
(192 << TSI108_EC_TXTHRESH_STOPFILL));
TSI_WRITE(TSI108_STAT_CARRYMASK1,
~(TSI108_STAT_CARRY1_RXBYTES |
TSI108_STAT_CARRY1_RXPKTS |
TSI108_STAT_CARRY1_RXFCS |
TSI108_STAT_CARRY1_RXMCAST |
TSI108_STAT_CARRY1_RXALIGN |
TSI108_STAT_CARRY1_RXLENGTH |
TSI108_STAT_CARRY1_RXRUNT |
TSI108_STAT_CARRY1_RXJUMBO |
TSI108_STAT_CARRY1_RXFRAG |
TSI108_STAT_CARRY1_RXJABBER |
TSI108_STAT_CARRY1_RXDROP));
TSI_WRITE(TSI108_STAT_CARRYMASK2,
~(TSI108_STAT_CARRY2_TXBYTES |
TSI108_STAT_CARRY2_TXPKTS |
TSI108_STAT_CARRY2_TXEXDEF |
TSI108_STAT_CARRY2_TXEXCOL |
TSI108_STAT_CARRY2_TXTCOL |
TSI108_STAT_CARRY2_TXPAUSE));
TSI_WRITE(TSI108_EC_PORTCTRL, TSI108_EC_PORTCTRL_STATEN);
TSI_WRITE(TSI108_MAC_CFG1, 0);
TSI_WRITE(TSI108_EC_RXCFG,
TSI108_EC_RXCFG_SE | TSI108_EC_RXCFG_BFE);
TSI_WRITE(TSI108_EC_TXQ_CFG, TSI108_EC_TXQ_CFG_DESC_INT |
TSI108_EC_TXQ_CFG_EOQ_OWN_INT |
TSI108_EC_TXQ_CFG_WSWP | (TSI108_PBM_PORT <<
TSI108_EC_TXQ_CFG_SFNPORT));
TSI_WRITE(TSI108_EC_RXQ_CFG, TSI108_EC_RXQ_CFG_DESC_INT |
TSI108_EC_RXQ_CFG_EOQ_OWN_INT |
TSI108_EC_RXQ_CFG_WSWP | (TSI108_PBM_PORT <<
TSI108_EC_RXQ_CFG_SFNPORT));
TSI_WRITE(TSI108_EC_TXQ_BUFCFG,
TSI108_EC_TXQ_BUFCFG_BURST256 |
TSI108_EC_TXQ_BUFCFG_BSWP | (TSI108_PBM_PORT <<
TSI108_EC_TXQ_BUFCFG_SFNPORT));
TSI_WRITE(TSI108_EC_RXQ_BUFCFG,
TSI108_EC_RXQ_BUFCFG_BURST256 |
TSI108_EC_RXQ_BUFCFG_BSWP | (TSI108_PBM_PORT <<
TSI108_EC_RXQ_BUFCFG_SFNPORT));
TSI_WRITE(TSI108_EC_INTMASK, ~0);
}
static int tsi108_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tsi108_prv_data *data = netdev_priv(dev);
unsigned long flags;
int rc;
spin_lock_irqsave(&data->txlock, flags);
rc = mii_ethtool_gset(&data->mii_if, cmd);
spin_unlock_irqrestore(&data->txlock, flags);
return rc;
}
static int tsi108_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
struct tsi108_prv_data *data = netdev_priv(dev);
unsigned long flags;
int rc;
spin_lock_irqsave(&data->txlock, flags);
rc = mii_ethtool_sset(&data->mii_if, cmd);
spin_unlock_irqrestore(&data->txlock, flags);
return rc;
}
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
static int tsi108_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
struct tsi108_prv_data *data = netdev_priv(dev);
if (!netif_running(dev))
return -EINVAL;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
return generic_mii_ioctl(&data->mii_if, if_mii(rq), cmd, NULL);
}
static const struct ethtool_ops tsi108_ethtool_ops = {
.get_link = ethtool_op_get_link,
.get_settings = tsi108_get_settings,
.set_settings = tsi108_set_settings,
};
static const struct net_device_ops tsi108_netdev_ops = {
.ndo_open = tsi108_open,
.ndo_stop = tsi108_close,
.ndo_start_xmit = tsi108_send_packet,
.ndo_set_multicast_list = tsi108_set_rx_mode,
.ndo_get_stats = tsi108_get_stats,
.ndo_do_ioctl = tsi108_do_ioctl,
.ndo_set_mac_address = tsi108_set_mac,
.ndo_validate_addr = eth_validate_addr,
.ndo_change_mtu = eth_change_mtu,
};
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
static int
tsi108_init_one(struct platform_device *pdev)
{
struct net_device *dev = NULL;
struct tsi108_prv_data *data = NULL;
hw_info *einfo;
int err = 0;
einfo = pdev->dev.platform_data;
if (NULL == einfo) {
printk(KERN_ERR "tsi-eth %d: Missing additional data!\n",
pdev->id);
return -ENODEV;
}
/* Create an ethernet device instance */
dev = alloc_etherdev(sizeof(struct tsi108_prv_data));
if (!dev) {
printk("tsi108_eth: Could not allocate a device structure\n");
return -ENOMEM;
}
printk("tsi108_eth%d: probe...\n", pdev->id);
data = netdev_priv(dev);
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
data->dev = dev;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
pr_debug("tsi108_eth%d:regs:phyresgs:phy:irq_num=0x%x:0x%x:0x%x:0x%x\n",
pdev->id, einfo->regs, einfo->phyregs,
einfo->phy, einfo->irq_num);
data->regs = ioremap(einfo->regs, 0x400);
if (NULL == data->regs) {
err = -ENOMEM;
goto regs_fail;
}
data->phyregs = ioremap(einfo->phyregs, 0x400);
if (NULL == data->phyregs) {
err = -ENOMEM;
goto regs_fail;
}
/* MII setup */
data->mii_if.dev = dev;
data->mii_if.mdio_read = tsi108_mdio_read;
data->mii_if.mdio_write = tsi108_mdio_write;
data->mii_if.phy_id = einfo->phy;
data->mii_if.phy_id_mask = 0x1f;
data->mii_if.reg_num_mask = 0x1f;
data->phy = einfo->phy;
data->phy_type = einfo->phy_type;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
data->irq_num = einfo->irq_num;
data->id = pdev->id;
[NET]: Make NAPI polling independent of struct net_device objects. Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-03 23:41:36 +00:00
netif_napi_add(dev, &data->napi, tsi108_poll, 64);
dev->netdev_ops = &tsi108_netdev_ops;
dev->ethtool_ops = &tsi108_ethtool_ops;
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
/* Apparently, the Linux networking code won't use scatter-gather
* if the hardware doesn't do checksums. However, it's faster
* to checksum in place and use SG, as (among other reasons)
* the cache won't be dirtied (which then has to be flushed
* before DMA). The checksumming is done by the driver (via
* a new function skb_csum_dev() in net/core/skbuff.c).
*/
dev->features = NETIF_F_HIGHDMA;
spin_lock_init(&data->txlock);
spin_lock_init(&data->misclock);
tsi108_reset_ether(data);
tsi108_kill_phy(dev);
if ((err = tsi108_get_mac(dev)) != 0) {
printk(KERN_ERR "%s: Invalid MAC address. Please correct.\n",
dev->name);
goto register_fail;
}
tsi108_init_mac(dev);
err = register_netdev(dev);
if (err) {
printk(KERN_ERR "%s: Cannot register net device, aborting.\n",
dev->name);
goto register_fail;
}
platform_set_drvdata(pdev, dev);
printk(KERN_INFO "%s: Tsi108 Gigabit Ethernet, MAC: %pM\n",
dev->name, dev->dev_addr);
[PATCH] Add tsi108/9 On Chip Ethernet device driver support Add tsi108/9 on chip Ethernet controller driver support. The driver code collects the feedback of previous posting form the mailing list and gives the update. MPC7448HPC2 platform in arch/powerpc uses tsi108 bridge. The following is a brief description of the Ethernet controller: The Tsi108/9 Ethernet Controller connects Switch Fabric to two independent Gigabit Ethernet ports,E0 and E1. It uses a single Management interface to manage the two physical connection devices (PHYs). Each Ethernet port has its own statistics monitor that tracks and reports key interface statistics. Each port supports a 256-entry hash table for address filtering. In addition, each port is bridged to the Switch Fabric through a 2-Kbyte transmit FIFO and a 4-Kbyte Receive FIFO. Each Ethernet port also has a pair of internal Ethernet DMA channels to support the transmit and receive data flows. The Ethernet DMA channels use descriptors set up in memory, the memory map of the device, and access via the Switch Fabric. The Ethernet Controller’s DMA arbiter handles arbitration for the Switch Fabric. The Controller also has a register bus interface for register accesses and status monitor control. The PMD (Physical Media Device) interface operates in MII, GMII, or TBI modes. The MII mode is used for connecting with 10 or 100 Mbit/s PMDs. The GMII and TBI modes are used to connect with Gigabit PMDs. Internal data flows to and from the Ethernet Controller through the Switch Fabric. Each Ethernet port uses its transmit and receive DMA channels to manage data flows through buffer descriptors that are predefined by the system (the descriptors can exist anywhere in the system memory map). These descriptors are data structures that point to buffers filled with data ready to transmit over Ethernet, or they point to empty buffers ready to receive data from Ethernet. Signed-off-by: Alexandre Bounine <Alexandre.Bounine@tundra.com> Signed-off-by: Roy Zang <tie-fei.zang@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-11-09 03:49:13 +00:00
#ifdef DEBUG
data->msg_enable = DEBUG;
dump_eth_one(dev);
#endif
return 0;
register_fail:
iounmap(data->regs);
iounmap(data->phyregs);
regs_fail:
free_netdev(dev);
return err;
}
/* There's no way to either get interrupts from the PHY when
* something changes, or to have the Tsi108 automatically communicate
* with the PHY to reconfigure itself.
*
* Thus, we have to do it using a timer.
*/
static void tsi108_timed_checker(unsigned long dev_ptr)
{
struct net_device *dev = (struct net_device *)dev_ptr;
struct tsi108_prv_data *data = netdev_priv(dev);
tsi108_check_phy(dev);
tsi108_check_rxring(dev);
mod_timer(&data->timer, jiffies + CHECK_PHY_INTERVAL);
}
static int tsi108_ether_init(void)
{
int ret;
ret = platform_driver_register (&tsi_eth_driver);
if (ret < 0){
printk("tsi108_ether_init: error initializing ethernet "
"device\n");
return ret;
}
return 0;
}
static int tsi108_ether_remove(struct platform_device *pdev)
{
struct net_device *dev = platform_get_drvdata(pdev);
struct tsi108_prv_data *priv = netdev_priv(dev);
unregister_netdev(dev);
tsi108_stop_ethernet(dev);
platform_set_drvdata(pdev, NULL);
iounmap(priv->regs);
iounmap(priv->phyregs);
free_netdev(dev);
return 0;
}
static void tsi108_ether_exit(void)
{
platform_driver_unregister(&tsi_eth_driver);
}
module_init(tsi108_ether_init);
module_exit(tsi108_ether_exit);
MODULE_AUTHOR("Tundra Semiconductor Corporation");
MODULE_DESCRIPTION("Tsi108 Gigabit Ethernet driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:tsi-ethernet");