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linux/drivers/net/qlge/qlge_ethtool.c
Ron Mercer 86aaf9ad82 qlge: Fix lock/mutex warnings. 
Get rid of spinlock and private mutex usage for exclusive access to the
HW semaphore register.  rtnl_lock already creates exclusive access to
this register in all driver API.
Add rtnl to firmware worker threads that also use the HW semaphore register.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-10-06 17:33:37 -07:00

416 lines
11 KiB
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#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/types.h>
#include <linux/module.h>
#include <linux/list.h>
#include <linux/pci.h>
#include <linux/dma-mapping.h>
#include <linux/pagemap.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/dmapool.h>
#include <linux/mempool.h>
#include <linux/spinlock.h>
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/errno.h>
#include <linux/ioport.h>
#include <linux/in.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <net/ipv6.h>
#include <linux/tcp.h>
#include <linux/udp.h>
#include <linux/if_arp.h>
#include <linux/if_ether.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/if_vlan.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/vmalloc.h>
#include "qlge.h"
static int ql_update_ring_coalescing(struct ql_adapter *qdev)
{
int i, status = 0;
struct rx_ring *rx_ring;
struct cqicb *cqicb;
if (!netif_running(qdev->ndev))
return status;
/* Skip the default queue, and update the outbound handler
* queues if they changed.
*/
cqicb = (struct cqicb *)&qdev->rx_ring[qdev->rss_ring_count];
if (le16_to_cpu(cqicb->irq_delay) != qdev->tx_coalesce_usecs ||
le16_to_cpu(cqicb->pkt_delay) !=
qdev->tx_max_coalesced_frames) {
for (i = qdev->rss_ring_count; i < qdev->rx_ring_count; i++) {
rx_ring = &qdev->rx_ring[i];
cqicb = (struct cqicb *)rx_ring;
cqicb->irq_delay = cpu_to_le16(qdev->tx_coalesce_usecs);
cqicb->pkt_delay =
cpu_to_le16(qdev->tx_max_coalesced_frames);
cqicb->flags = FLAGS_LI;
status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
CFG_LCQ, rx_ring->cq_id);
if (status) {
QPRINTK(qdev, IFUP, ERR,
"Failed to load CQICB.\n");
goto exit;
}
}
}
/* Update the inbound (RSS) handler queues if they changed. */
cqicb = (struct cqicb *)&qdev->rx_ring[0];
if (le16_to_cpu(cqicb->irq_delay) != qdev->rx_coalesce_usecs ||
le16_to_cpu(cqicb->pkt_delay) !=
qdev->rx_max_coalesced_frames) {
for (i = 0; i < qdev->rss_ring_count; i++, rx_ring++) {
rx_ring = &qdev->rx_ring[i];
cqicb = (struct cqicb *)rx_ring;
cqicb->irq_delay = cpu_to_le16(qdev->rx_coalesce_usecs);
cqicb->pkt_delay =
cpu_to_le16(qdev->rx_max_coalesced_frames);
cqicb->flags = FLAGS_LI;
status = ql_write_cfg(qdev, cqicb, sizeof(*cqicb),
CFG_LCQ, rx_ring->cq_id);
if (status) {
QPRINTK(qdev, IFUP, ERR,
"Failed to load CQICB.\n");
goto exit;
}
}
}
exit:
return status;
}
static void ql_update_stats(struct ql_adapter *qdev)
{
u32 i;
u64 data;
u64 *iter = &qdev->nic_stats.tx_pkts;
spin_lock(&qdev->stats_lock);
if (ql_sem_spinlock(qdev, qdev->xg_sem_mask)) {
QPRINTK(qdev, DRV, ERR,
"Couldn't get xgmac sem.\n");
goto quit;
}
/*
* Get TX statistics.
*/
for (i = 0x200; i < 0x280; i += 8) {
if (ql_read_xgmac_reg64(qdev, i, &data)) {
QPRINTK(qdev, DRV, ERR,
"Error reading status register 0x%.04x.\n", i);
goto end;
} else
*iter = data;
iter++;
}
/*
* Get RX statistics.
*/
for (i = 0x300; i < 0x3d0; i += 8) {
if (ql_read_xgmac_reg64(qdev, i, &data)) {
QPRINTK(qdev, DRV, ERR,
"Error reading status register 0x%.04x.\n", i);
goto end;
} else
*iter = data;
iter++;
}
end:
ql_sem_unlock(qdev, qdev->xg_sem_mask);
quit:
spin_unlock(&qdev->stats_lock);
QL_DUMP_STAT(qdev);
return;
}
static char ql_stats_str_arr[][ETH_GSTRING_LEN] = {
{"tx_pkts"},
{"tx_bytes"},
{"tx_mcast_pkts"},
{"tx_bcast_pkts"},
{"tx_ucast_pkts"},
{"tx_ctl_pkts"},
{"tx_pause_pkts"},
{"tx_64_pkts"},
{"tx_65_to_127_pkts"},
{"tx_128_to_255_pkts"},
{"tx_256_511_pkts"},
{"tx_512_to_1023_pkts"},
{"tx_1024_to_1518_pkts"},
{"tx_1519_to_max_pkts"},
{"tx_undersize_pkts"},
{"tx_oversize_pkts"},
{"rx_bytes"},
{"rx_bytes_ok"},
{"rx_pkts"},
{"rx_pkts_ok"},
{"rx_bcast_pkts"},
{"rx_mcast_pkts"},
{"rx_ucast_pkts"},
{"rx_undersize_pkts"},
{"rx_oversize_pkts"},
{"rx_jabber_pkts"},
{"rx_undersize_fcerr_pkts"},
{"rx_drop_events"},
{"rx_fcerr_pkts"},
{"rx_align_err"},
{"rx_symbol_err"},
{"rx_mac_err"},
{"rx_ctl_pkts"},
{"rx_pause_pkts"},
{"rx_64_pkts"},
{"rx_65_to_127_pkts"},
{"rx_128_255_pkts"},
{"rx_256_511_pkts"},
{"rx_512_to_1023_pkts"},
{"rx_1024_to_1518_pkts"},
{"rx_1519_to_max_pkts"},
{"rx_len_err_pkts"},
};
static void ql_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(buf, ql_stats_str_arr, sizeof(ql_stats_str_arr));
break;
}
}
static int ql_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(ql_stats_str_arr);
default:
return -EOPNOTSUPP;
}
}
static void
ql_get_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *stats, u64 *data)
{
struct ql_adapter *qdev = netdev_priv(ndev);
struct nic_stats *s = &qdev->nic_stats;
ql_update_stats(qdev);
*data++ = s->tx_pkts;
*data++ = s->tx_bytes;
*data++ = s->tx_mcast_pkts;
*data++ = s->tx_bcast_pkts;
*data++ = s->tx_ucast_pkts;
*data++ = s->tx_ctl_pkts;
*data++ = s->tx_pause_pkts;
*data++ = s->tx_64_pkt;
*data++ = s->tx_65_to_127_pkt;
*data++ = s->tx_128_to_255_pkt;
*data++ = s->tx_256_511_pkt;
*data++ = s->tx_512_to_1023_pkt;
*data++ = s->tx_1024_to_1518_pkt;
*data++ = s->tx_1519_to_max_pkt;
*data++ = s->tx_undersize_pkt;
*data++ = s->tx_oversize_pkt;
*data++ = s->rx_bytes;
*data++ = s->rx_bytes_ok;
*data++ = s->rx_pkts;
*data++ = s->rx_pkts_ok;
*data++ = s->rx_bcast_pkts;
*data++ = s->rx_mcast_pkts;
*data++ = s->rx_ucast_pkts;
*data++ = s->rx_undersize_pkts;
*data++ = s->rx_oversize_pkts;
*data++ = s->rx_jabber_pkts;
*data++ = s->rx_undersize_fcerr_pkts;
*data++ = s->rx_drop_events;
*data++ = s->rx_fcerr_pkts;
*data++ = s->rx_align_err;
*data++ = s->rx_symbol_err;
*data++ = s->rx_mac_err;
*data++ = s->rx_ctl_pkts;
*data++ = s->rx_pause_pkts;
*data++ = s->rx_64_pkts;
*data++ = s->rx_65_to_127_pkts;
*data++ = s->rx_128_255_pkts;
*data++ = s->rx_256_511_pkts;
*data++ = s->rx_512_to_1023_pkts;
*data++ = s->rx_1024_to_1518_pkts;
*data++ = s->rx_1519_to_max_pkts;
*data++ = s->rx_len_err_pkts;
}
static int ql_get_settings(struct net_device *ndev,
struct ethtool_cmd *ecmd)
{
struct ql_adapter *qdev = netdev_priv(ndev);
ecmd->supported = SUPPORTED_10000baseT_Full;
ecmd->advertising = ADVERTISED_10000baseT_Full;
ecmd->autoneg = AUTONEG_ENABLE;
ecmd->transceiver = XCVR_EXTERNAL;
if ((qdev->link_status & STS_LINK_TYPE_MASK) ==
STS_LINK_TYPE_10GBASET) {
ecmd->supported |= (SUPPORTED_TP | SUPPORTED_Autoneg);
ecmd->advertising |= (ADVERTISED_TP | ADVERTISED_Autoneg);
ecmd->port = PORT_TP;
} else {
ecmd->supported |= SUPPORTED_FIBRE;
ecmd->advertising |= ADVERTISED_FIBRE;
ecmd->port = PORT_FIBRE;
}
ecmd->speed = SPEED_10000;
ecmd->duplex = DUPLEX_FULL;
return 0;
}
static void ql_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *drvinfo)
{
struct ql_adapter *qdev = netdev_priv(ndev);
strncpy(drvinfo->driver, qlge_driver_name, 32);
strncpy(drvinfo->version, qlge_driver_version, 32);
snprintf(drvinfo->fw_version, 32, "v%d.%d.%d",
(qdev->fw_rev_id & 0x00ff0000) >> 16,
(qdev->fw_rev_id & 0x0000ff00) >> 8,
(qdev->fw_rev_id & 0x000000ff));
strncpy(drvinfo->bus_info, pci_name(qdev->pdev), 32);
drvinfo->n_stats = 0;
drvinfo->testinfo_len = 0;
drvinfo->regdump_len = 0;
drvinfo->eedump_len = 0;
}
static int ql_get_coalesce(struct net_device *dev, struct ethtool_coalesce *c)
{
struct ql_adapter *qdev = netdev_priv(dev);
c->rx_coalesce_usecs = qdev->rx_coalesce_usecs;
c->tx_coalesce_usecs = qdev->tx_coalesce_usecs;
/* This chip coalesces as follows:
* If a packet arrives, hold off interrupts until
* cqicb->int_delay expires, but if no other packets arrive don't
* wait longer than cqicb->pkt_int_delay. But ethtool doesn't use a
* timer to coalesce on a frame basis. So, we have to take ethtool's
* max_coalesced_frames value and convert it to a delay in microseconds.
* We do this by using a basic thoughput of 1,000,000 frames per
* second @ (1024 bytes). This means one frame per usec. So it's a
* simple one to one ratio.
*/
c->rx_max_coalesced_frames = qdev->rx_max_coalesced_frames;
c->tx_max_coalesced_frames = qdev->tx_max_coalesced_frames;
return 0;
}
static int ql_set_coalesce(struct net_device *ndev, struct ethtool_coalesce *c)
{
struct ql_adapter *qdev = netdev_priv(ndev);
/* Validate user parameters. */
if (c->rx_coalesce_usecs > qdev->rx_ring_size / 2)
return -EINVAL;
/* Don't wait more than 10 usec. */
if (c->rx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
return -EINVAL;
if (c->tx_coalesce_usecs > qdev->tx_ring_size / 2)
return -EINVAL;
if (c->tx_max_coalesced_frames > MAX_INTER_FRAME_WAIT)
return -EINVAL;
/* Verify a change took place before updating the hardware. */
if (qdev->rx_coalesce_usecs == c->rx_coalesce_usecs &&
qdev->tx_coalesce_usecs == c->tx_coalesce_usecs &&
qdev->rx_max_coalesced_frames == c->rx_max_coalesced_frames &&
qdev->tx_max_coalesced_frames == c->tx_max_coalesced_frames)
return 0;
qdev->rx_coalesce_usecs = c->rx_coalesce_usecs;
qdev->tx_coalesce_usecs = c->tx_coalesce_usecs;
qdev->rx_max_coalesced_frames = c->rx_max_coalesced_frames;
qdev->tx_max_coalesced_frames = c->tx_max_coalesced_frames;
return ql_update_ring_coalescing(qdev);
}
static u32 ql_get_rx_csum(struct net_device *netdev)
{
struct ql_adapter *qdev = netdev_priv(netdev);
return qdev->rx_csum;
}
static int ql_set_rx_csum(struct net_device *netdev, uint32_t data)
{
struct ql_adapter *qdev = netdev_priv(netdev);
qdev->rx_csum = data;
return 0;
}
static int ql_set_tso(struct net_device *ndev, uint32_t data)
{
if (data) {
ndev->features |= NETIF_F_TSO;
ndev->features |= NETIF_F_TSO6;
} else {
ndev->features &= ~NETIF_F_TSO;
ndev->features &= ~NETIF_F_TSO6;
}
return 0;
}
static u32 ql_get_msglevel(struct net_device *ndev)
{
struct ql_adapter *qdev = netdev_priv(ndev);
return qdev->msg_enable;
}
static void ql_set_msglevel(struct net_device *ndev, u32 value)
{
struct ql_adapter *qdev = netdev_priv(ndev);
qdev->msg_enable = value;
}
const struct ethtool_ops qlge_ethtool_ops = {
.get_settings = ql_get_settings,
.get_drvinfo = ql_get_drvinfo,
.get_msglevel = ql_get_msglevel,
.set_msglevel = ql_set_msglevel,
.get_link = ethtool_op_get_link,
.get_rx_csum = ql_get_rx_csum,
.set_rx_csum = ql_set_rx_csum,
.get_tx_csum = ethtool_op_get_tx_csum,
.set_tx_csum = ethtool_op_set_tx_csum,
.get_sg = ethtool_op_get_sg,
.set_sg = ethtool_op_set_sg,
.get_tso = ethtool_op_get_tso,
.set_tso = ql_set_tso,
.get_coalesce = ql_get_coalesce,
.set_coalesce = ql_set_coalesce,
.get_sset_count = ql_get_sset_count,
.get_strings = ql_get_strings,
.get_ethtool_stats = ql_get_ethtool_stats,
};
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