Commit graph

136 commits

Author SHA1 Message Date
Jiri Slaby
b7b5a1282c s2io, rename BIT macro
s2io, rename BIT macro

BIT macro will be global definiton of (1<<x)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Ramkrishna Vepa <ram.vepa@neterion.com>
Cc: Rastapur Santosh <santosh.rastapur@neterion.com>
Cc: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Cc: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:42 -07:00
Stephen Hemminger
43b7c451a0 s2io: sparse warnings fix (rev2)
Fix warnings from sparse checker about shadowed definition and improperly
formatted ethtool_strings.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:55:26 -07:00
Sivakumar Subramani
1a7eb72b68 S2io: Updating transceiver information in ethtool function
- Update transceiver information in ethtool function

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:48 -07:00
Sivakumar Subramani
2fd3768845 S2io: Added support set_mac_address driver entry point
- Added set_mac_address driver entry point
- Copying permanent mac address to dev->perm_addr
- Incorporated following review comments from Jeff
     - Converted the macro to a function and removed call to memset
     - regarding function naming convention, for all callbacks and entry points
       will have 's2io_' prefix and helper functions will have 'do_s2io_' prefix.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:47 -07:00
Sivakumar Subramani
8a4bdbaa93 S2io: Removed unused feature - bimodal interrupts
Removed bimodal interrupt support - unused feature

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

[also, trim trailing whitespace]
2007-10-10 16:51:47 -07:00
Sivakumar Subramani
bd684e43d6 S2io: Change kmalloc+memset to k[zc]alloc
- Changed kmalloc+memset to k[zc]alloc as per Mariusz's patch
  <m.kozlowski@tuxland.pl>

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:46 -07:00
Jeff Garzik
b9f2c0440d [netdrvr] Stop using legacy hooks ->self_test_count, ->get_stats_count
These have been superceded by the new ->get_sset_count() hook.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:45 -07:00
Joe Perches
0795af5729 [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()
This is nicer than the MAC_FMT stuff.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:42 -07:00
Jeff Garzik
88d3aafdae [ETHTOOL] Provide default behaviors for a few ethtool sub-ioctls
For the operations
	get-tx-csum
	get-sg
	get-tso
	get-ufo
the default ethtool_op_xxx behavior is fine for all drivers, so we
permit op==NULL to imply the default behavior.

This provides a more uniform behavior across all drivers, eliminating
ethtool(8) "ioctl not supported" errors on older drivers that had
not been updated for the latest sub-ioctls.

The ethtool_op_xxx() functions are left exported, in case anyone
wishes to call them directly from a driver-private implementation --
a not-uncommon case.  Should an ethtool_op_xxx() helper remain unused
for a while, except by net/core/ethtool.c, we can un-export it at a
later date.

[ Resolved conflicts with set/get value ethtool patch... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:17 -07:00
Ralf Baechle
10d024c1b2 [NET]: Nuke SET_MODULE_OWNER macro.
It's been a useless no-op for long enough in 2.6 so I figured it's time to
remove it.  The number of people that could object because they're
maintaining unified 2.4 and 2.6 drivers is probably rather small.

[ Handled drivers added by netdev tree and some missed IRDA cases... -DaveM ]

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:13 -07:00
Sivakumar Subramani
596c5c9743 S2io: code Optimization of isr function
- Code Optimization of s2io_isr function.
- Isr check using per device napi variable instead of driver global.
- Reduced from 3 to 1 if condition before check for processing packet receive
  packets.
- Implemented Jeff's comment to use synchronize_irq. Removed the isr_cnt
  variable as it became redundant.
- One time de assert the interrupts by writing all F's to the general_int_mask
  register instead of de asserting by clearing the source of interrupts with
  multiple writes which causes loss of interrupts (race conditions). It is
  entirely possible that before the driver has a chance to mask the asserted
  alarm bit, another alarm/traffic interrupt bit gets asserted as well. In
  this case Herc will keep the INTA line asserted and the bridge will not
  send a new Assert_INTA message upstream.

[ Resolved conflicts due to napi_struct changes... -DaveM ]

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:10 -07:00
Sivakumar Subramani
92b84437a6 S2io: Check for device state before handling traffic
- Added check to return from the traffic handling function, if the card status
  is DOWN.
- Implemented Jeff's comments on incorrect return value in s2io_poll function.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:10 -07:00
Sivakumar Subramani
eaae7f7230 S2io: Cleanup - removed unused variable intr_type
- Removed the unused variable, intr_type, in device private structure.

[ Resolve conflicts with napi_struct changes... -DaveM ]

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:51:09 -07:00
Sivakumar Subramani
8116f3cf4a [S2IO]: Handle and monitor all of the device errors and alarms
- Added support to poll entire set of device errors and alarams.
- A note on how device errors and alarms are handled:
- The adapter will automatically recover from uncorrectable ECC errors.
  Packets containing corrupted data will be dropped (not transmitted) or tagged
  as invalid before being passed to the host.
- The adapter cannot recover from any internal state machine errors. A state
  machine error requires a device reset.
- Any internal error that could potentially result in .store trampling.
  (undesirable PCI behaviour)is tagged as a "serious error". In such cases
  the adapter will give up its ability to be a bus master. In this situation
  the host will still be able to read internal device registers in order to
  generate an error report. A device reset is necessary to return to normal
  operation.
- In the event of a pcix data parity error, the adapter will automatically
  disable itself. Adapter_En will automatically transition from '1' to '0' and
  the adapter will enter its clean-up routine. Once the device has achieved
  quiescence, an adapter reset should be performed.
- Replaced alarm_intr_handler() with s2io_handle_errors().
- Added statistic counters to monitor the alarms.

[ Fix warnings wrt. do_s2io_chk_alarm_bit(), Callers pass in an
  "unsigned long long *" but the function takes a "u64 *" which is
  different on many 64-bit platforms. -DaveM ]

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:09 -07:00
Sivakumar Subramani
9caab4587b S2io: Enable all the error and alarm indications
- Added support to unmask entire set of device errors and alarams.
        Alarm interrupts are generated for a myriad of purposes, ranging from
  illegal operations or requests to internal state machine errors and
  uncorrectable data corruption errors. In several cases the adapter can
  recover gracefully from unexpected events; however, in some cases, a device
  reset may be necessary. This patch handles alarms generated by all the
  blocks within the device.

  The adapter generates the following types of alarms:
        1. Link state transitions (local/remote fault) or other link-related
           problems.
        2. Problems with any device peripherals, including the EEPROM, FLASH,
           etc.
        3. Correctable ECC errors (single-bit errors) on internal data
           structures or frame data.
        4. Uncorrectable ECC errors (multi-bit errors) on internal data
           structures or frame data.
        5. State machine errors, which indicate that internal control
           structures have become corrupted.
        6. PCI related errors, including parity errors or illegal transactions.
        7. Other unexpected events.

- Implemented Jeff's review comments to use do_s2io_write_bits function to avoid
  duplicate codes.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:51:08 -07:00
Sivakumar Subramani
92c487996d S2IO: Fixed Link LED issue when MSI-X is enabled
-Fixed Link LED issue when MSI-X is enabled.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:25 -07:00
Sivakumar Subramani
c77dd43e77 S2IO: Fixes in MSIX related code.
- Calling store_xmsi_data to store the MSI-X datas during initialization
  in s2io-init_nic function
- Disabling NAPI when MSI-X is enabled
- Freeing sp->entries and sp->s2io_entries in s2io_rem_isr

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-10 16:50:24 -07:00
Sivakumar Subramani
8abc4d5b84 [S2IO]: Making MSIX as default intr_type
- Making MSIX as default intr_type
- Driver will test MSI-X by issuing test MSI-X vector and if fails it will
  fallback to INTA

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:50:24 -07:00
Stephen Hemminger
bea3348eef [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>
2007-10-10 16:47:45 -07:00
Al Viro
3e847423bf fix s2io regression
* wrong argument passed to pci_unmap_single() on failure
   exit paths
 * leak in the same area

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-03 15:10:44 -07:00
Ramkrishna Vepa
573608e4cd S2io: Increment received packet count correctly
- Fix to increment the received packet count correctly.

(Resending; Removed HTML sections in the patch)

Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:04 -04:00
Ramkrishna Vepa
0a65a65d7a S2io: Fix crash when resetting adapter
- Removed the call to pci_set_power_state to reset the adapter as it was resulting
  in system crash on some platforms.

(Resending; Removed HTML sections in the patch)

Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:04 -04:00
Veena Parat
b6627672a8 S2IO: Implementing review comments from old patches
- Incorporated Jeff Garzik's comments on coding standards

Signed-off-by: Veena Parat <veena.parat@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:04 -04:00
Veena Parat
491abf2537 S2IO: Checking for the return value of pci map function
- Checking for the return value of pci map function
 - Implemented Francois Romieu's comments on eliminating code duplication
   using goto
 - Implemented Francois Romieu's comments on using a temporary variable for
   accessing statistics structure

Signed-off-by: Veena Parat <veena.parat@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:04 -04:00
Veena Parat
eccb8628ab S2IO: Removing MSI support from driver
- Removed MSI support from driver - unused feature
 - Replaced request_mem_region with pci_request_regions

Signed-off-by: Veena Parat <veena.parat@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:04 -04:00
Veena Parat
6d517a27d5 S2IO: Removing 3 buffer mode support from the driver
- Removed 3 buffer mode support from driver - unused feature
 - Incorporated Jeff Garzik's comments on elimination of inline typecasting
 - Code cleanup : Removed a few extra spaces

Signed-off-by: Veena Parat <veena.parat@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-30 15:56:03 -04:00
Linus Torvalds
1f1c2881f6 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (37 commits)
  forcedeth bug fix: realtek phy
  forcedeth bug fix: vitesse phy
  forcedeth bug fix: cicada phy
  atl1: reorder atl1_main functions
  atl1: fix excessively indented code
  atl1: cleanup atl1_main
  atl1: header file cleanup
  atl1: remove irq_sem
  cdc-subset to support new vendor/product ID
  8139cp: implement the missing dev->tx_timeout
  myri10ge: Remove nonsensical limit in the tx done routine
  gianfar: kill unused header
  EP93XX_ETH must select MII
  macb: Add multicast capability
  macb: Use generic PHY layer
  s390: add barriers to qeth driver
  s390: scatter-gather for inbound traffic in qeth driver
  eHEA: Introducing support vor DLPAR memory add
  Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c
  [PATCH] softmac: Fix ESSID problem
  ...
2007-07-16 17:48:54 -07:00
Micah Gruber
8910b49fbb Fix a potential NULL pointer dereference in free_shared_mem() in drivers/net/s2io.c
This patch fixes a potential null dereference bug where we dereference
nic before a null check. This patch simply moves the dereferencing
after the null check.

Signed-off-by: Micah Gruber < micah.gruber@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-16 17:56:00 -04:00
Auke Kok
44c10138fd PCI: Change all drivers to use pci_device->revision
Instead of all drivers reading pci config space to get the revision
ID, they can now use the pci_device->revision member.

This exposes some issues where drivers where reading a word or a dword
for the revision number, and adding useless error-handling around the
read. Some drivers even just read it for no purpose of all.

In devices where the revision ID is being copied over and used in what
appears to be the equivalent of hotpath, I have left the copy code
and the cached copy as not to influence the driver's performance.

Compile tested with make all{yes,mod}config on x86_64 and i386.

Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Acked-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-07-11 16:02:10 -07:00
Rolf Eike Beer
8453d43f0e Fix typo in drivers/net/s2io.c
Introduced in d796fdb708.

Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-10 12:24:42 -04:00
Linas Vepstas
146bd683cc s2io: add PCI error recovery support
s2io cleanup suggestions, per discussion on mailing lists.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08 22:16:38 -04:00
Linas Vepstas
d796fdb708 s2io: add PCI error recovery support
This patch adds PCI error recovery support to the
s2io 10-Gigabit ethernet device driver. Third revision,
blocks interrupts and the watchdog.

Tested, seems to work well.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Acked-by: Ramkrishna Vepa <Ramkrishna.Vepa@neterion.com>
Cc: Raghavendra Koushik <raghavendra.koushik@neterion.com>
Cc: Wen Xiong <wenxiong@us.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-07-08 22:16:38 -04:00
Olaf Hering
f9046eb3f6 2.6.22: ERROR: "__ucmpdi2" [drivers/net/s2io.ko] undefined!
On Tue, Jun 19, Stephen Hemminger wrote:
> Olaf Hering <olaf@aepfle.de> wrote:
> > What happend to __ucmpdi2 from David Woodhouse?
> > google has a few hits about stuff like this on 32bit powerpc with gcc 4.1.2:
> >
> > ERROR: "__ucmpdi2" [drivers/net/s2io.ko] undefined!
> >
> > using the drivers/net/s2io* files from 2.6.21 with 2.6.22-rc5 fixes the
> > compile.
> >
> > 25805dcf9d adds two u64 >>= 48 followed by
> > a switch statement (line 2889 and 6816).
>
> Probably the "switch(err) {" needs a cast to a smaller type (like u8).

This change removes the compiler-generated calls to __ucmpdi2.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-06-27 02:33:06 -04:00
Stephen Hemminger
25805dcf9d network drivers: eliminate unneeded kill_vid code
Many drivers had code that did kill_vid, but they weren't doing vlan
filtering. With new API the stub is unneeded unless device sets
NETIF_F_HW_VLAN_FILTER.

Bad habit: I couldn't resist fixing a couple of nearby style things
in acenic, and forcedeth.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-06-03 11:44:20 -04:00
Sreenivasa Honnur
491976b2bc S2IO: Statistics for link up/down and memory allocated/freed
1. Added statistics for link up/down, last link up/down.
2. Statistics for memory allocated/freed.
3. Changed level of some DBG_PRINTs.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11 17:53:11 -04:00
Sreenivasa Honnur
c53d49453f S2IO: statistics for memory allocation failuers
1. Added code to count the number of memory failures.
2. Added watchdog_timer counter.
3. Changed debug level for some DBG_PRINTS.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11 17:53:08 -04:00
Sreenivasa Honnur
0cec35ebf3 S2IO: getringparam ethtool option
Adding get_ringparam ethtool option.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-05-11 17:53:05 -04:00
Ramkrishna Vepa
3ef34b807d S2io: Change of driver maintainers
- Changed the maintainers for the S2io driver.

Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:03 -04:00
Ramkrishna Vepa
0c61ed5fe2 S2io: Remove unused variables
- Remove unused variables from s2io_nic structure

- Changed the memory failure printk messages to print only in debug mode

- Updated the copyright messages

(Resending; due to patch being corrupted)

Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:01:01 -04:00
Ramkrishna Vepa
363dc36733 S2IO: Save/Restore unused buffer mappings in 2/3 buffer mode
- Save/Restore unused buffer mappings in 2/3 buffer mode to avoid
frequent mapping

- Save/Restore adapter reset count during adapter reset

  (Resending; forgot to cc netdev)

Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:00:58 -04:00
Adrian Bunk
7b49034399 make drivers/net/s2io.c:vlan_strip_flag static
This patch makes the needlessly global vlan_strip_flag static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-04-28 11:00:56 -04:00
Arnaldo Carvalho de Melo
27a884dc3c [SK_BUFF]: Convert skb->tail to sk_buff_data_t
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)

Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-25 22:26:28 -07:00
Dan Aloni
5c15bdec5c [VLAN]: Avoid a 4-order allocation.
This patch splits the vlan_group struct into a multi-allocated struct. On
x86_64, the size of the original struct is a little more than 32KB, causing
a 4-order allocation, which is prune to problems caused by buddy-system
external fragmentation conditions.

I couldn't just use vmalloc() because vfree() cannot be called in the
softirq context of the RCU callback.

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-03-02 20:44:51 -08:00
Sivakumar Subramani
d8d70caf83 S2IO: Restoring the mac address in s2io_reset
- Restore in s2io_reset, the mac address assigned during s2io_open.
  Earlier, it was getting overwritten to the factory default (read from the
  eeprom) and subsequently dropping received frames.

- Fixed the typo in calling rtnl_unlock in s2io_set_link function.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:12 -05:00
Sivakumar Subramani
fa1f0cb350 S2IO: Avoid printing the Enhanced statistics for Xframe I card.
- Enhanced Statistics are supported only for Xframe II (Herculas) card. Add
  condition check such Enhanced statistics will included only in the case of
  Xframe II card.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:11 -05:00
Sivakumar Subramani
ac1f90d6f1 S2IO: Making LED off during LINK_DOWN notification.
- Turning off LED for LINK_DOWN notification
- Return from rxd_owner_bit_reset function if call to set_rxd_buffer_pointer
  fails with ENOMEM

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:11 -05:00
Sivakumar Subramani
926930b202 S2IO: Added a loadable parameter to enable or disable vlan stripping in frame.
- Added code to not to strip vlan tag when driver is in promiscuous mode
- Added module loadable parameter 'vlan_tag_strip" through which user can
  enable or disable vlan stripping irrespective of mode
  ( promiscuous or non-promiscuous ).

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:11 -05:00
Sivakumar Subramani
9fc93a41a1 S2IO: Optimized the delay to wait for command completion
- Optimized delay to wait for command completion so as to reduce the
  initialization wait time.
- Disable differentiated services steering. By default RMAC is configured to
  steer traffic with certain DS codes to other queues. Driver must initialize
  the DS memory to 0 to make sure that DS steering will not be used by default.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:11 -05:00
Sivakumar Subramani
fb6a825b09 S2IO: Fixes for MSI and MSIX
- Added debug statements to print a debug message if the MSI/MSI-X vector (or)
  data is zero.

- This patch removes the code that will enable NAPI for the case of single
  ring and MSI-X / MSI case. There are some issue in the enabling NAPI with
  MSI/MSI-X.  So we are turning off NAPI in the case of MSI/MSI-X.

Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-27 04:27:11 -05:00
Francois Romieu
22747d6b41 s2io: RTNL and flush_scheduled_work deadlock
Mantra: don't use flush_scheduled_work with RTNL held.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-20 11:18:13 -05:00