Commit Graph

65 Commits

Author SHA1 Message Date
Ananda Raju
75c30b1368 [PATCH] s2io driver bug fixes #2
This patch contains some of the bug fixes and enhancements done to
	s2io driver. Following are the brief description of changes

	1. code cleanup to handle gso modification better
	2. Move repeated code in rx path, to a common function
	   s2io_chk_rx_buffers()
	3. Bug fix in MSI interrupt
	4. clear statistics when card is down
	5. Avoid linked list traversing in lro aggregation.
	6. Use pci_dma_sync_single_for_cpu for buffer0 in case of 2/3
	   buffer mode.
	7. ethtool tso get/set functions to set clear NETIF_F_TSO6
	8. Stop LRO aggregation when we receive ECN notification

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-03 17:27:26 -04:00
Ananda Raju
b41477f32a [PATCH] s2io driver bug fixes #1
This patch contains some of the bug fixes and enhancements done to
	s2io driver. Following are the brief description of changes

	1. Introduced macro "S2IO_PARM_INT" for declaring integer load parameter
	2. UDP_RR test failure, memset txdl after Tx completion
	3. PXE boot may leave adapter in unknown state so do reset in probe.
	4. Add Tx completion code in netpoll
	5. In s2io_vpd_read() move array vpd_data[] to pointer, saves stack memory
	6. Fix bug in ethtool online test

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-03 17:27:25 -04:00
Ananda Raju
e6a8fee209 [PATCH] s2io driver irq fix
Modification and bug fixes with respect to irq registration.

- Enable interrupts after request_irq

- Restored MSI data register value at driver unload time

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-12 17:42:40 -04:00
Thomas Gleixner
1fb9df5d30 [PATCH] irq-flags: drivers/net: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:51 -07:00
Linus Torvalds
e37a72de84 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [IPV6]: Added GSO support for TCPv6
  [NET]: Generalise TSO-specific bits from skb_setup_caps
  [IPV6]: Added GSO support for TCPv6
  [IPV6]: Remove redundant length check on input
  [NETFILTER]: SCTP conntrack: fix crash triggered by packet without chunks
  [TG3]: Update version and reldate
  [TG3]: Add TSO workaround using GSO
  [TG3]: Turn on hw fix for ASF problems
  [TG3]: Add rx BD workaround
  [TG3]: Add tg3_netif_stop() in vlan functions
  [TCP]: Reset gso_segs if packet is dodgy
2006-06-30 15:40:17 -07:00
Herbert Xu
f83ef8c0b5 [IPV6]: Added GSO support for TCPv6
This patch adds GSO support for IPv6 and TCPv6.  This is based on a patch
by Ananda Raju <Ananda.Raju@neterion.com>.  His original description is:

	This patch enables TSO over IPv6. Currently Linux network stacks
	restricts TSO over IPv6 by clearing of the NETIF_F_TSO bit from
	"dev->features". This patch will remove this restriction.

	This patch will introduce a new flag NETIF_F_TSO6 which will be used
	to check whether device supports TSO over IPv6. If device support TSO
	over IPv6 then we don't clear of NETIF_F_TSO and which will make the
	TCP layer to create TSO packets. Any device supporting TSO over IPv6
	will set NETIF_F_TSO6 flag in "dev->features" along with NETIF_F_TSO.

	In case when user disables TSO using ethtool, NETIF_F_TSO will get
	cleared from "dev->features". So even if we have NETIF_F_TSO6 we don't
	get TSO packets created by TCP layer.

	SKB_GSO_TCPV4 renamed to SKB_GSO_TCP to make it generic GSO packet.
	SKB_GSO_UDPV4 renamed to SKB_GSO_UDP as UFO is not a IPv4 feature.
	UFO is supported over IPv6 also

	The following table shows there is significant improvement in
	throughput with normal frames and CPU usage for both normal and jumbo.

	--------------------------------------------------
	|          |     1500        |      9600         |
	|          ------------------|-------------------|
	|          | thru     CPU    |  thru     CPU     |
	--------------------------------------------------
	| TSO OFF  | 2.00   5.5% id  |  5.66   20.0% id  |
	--------------------------------------------------
	| TSO ON   | 2.63   78.0 id  |  5.67   39.0% id  |
	--------------------------------------------------

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-30 14:12:10 -07:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Herbert Xu
7967168cef [NET]: Merge TSO/UFO fields in sk_buff
Having separate fields in sk_buff for TSO/UFO (tso_size/ufo_size) is not
going to scale if we add any more segmentation methods (e.g., DCCP).  So
let's merge them.

They were used to tell the protocol of a packet.  This function has been
subsumed by the new gso_type field.  This is essentially a set of netdev
feature bits (shifted by 16 bits) that are required to process a specific
skb.  As such it's easy to tell whether a given device can process a GSO
skb: you just have to and the gso_type field and the netdev's features
field.

I've made gso_type a conjunction.  The idea is that you have a base type
(e.g., SKB_GSO_TCPV4) that can be modified further to support new features.
For example, if we add a hardware TSO type that supports ECN, they would
declare NETIF_F_TSO | NETIF_F_TSO_ECN.  All TSO packets with CWR set would
have a gso_type of SKB_GSO_TCPV4 | SKB_GSO_TCPV4_ECN while all other TSO
packets would be SKB_GSO_TCPV4.  This means that only the CWR packets need
to be emulated in software.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-06-23 02:07:29 -07:00
Brian Haley
612eff0e37 [PATCH] s2io: netpoll support
This adds netpoll support for things like netconsole/kgdboe to the s2io
10GbE driver.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-06-20 04:50:36 -04:00
Adrian Bunk
7b32a31289 [PATCH] drivers/net/s2io.c: make bus_speed[] static
On Mon, May 15, 2006 at 12:56:37AM -0700, Andrew Morton wrote:
>...
> Changes since 2.6.17-rc3-mm1:
>...
>  git-netdev-all.patch
>...
>  git trees
>...

This patch makes the needlessly global bus_speed[] static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-24 01:28:14 -04:00
Ananda Raju
5d3213cc8f [PATCH] s2io: init/shutdown fixes
Hi,
	The following patch contains fix related to init and shutdown of adapter
	as per user guide.  The list of changes include

	1. shutdown gracefully.
	2. Need to mask/unmask interrupts in ISR required fro Xframe-E
	3. Tx FIFO should be enabled after WRR calender programming

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-02 15:16:36 -04:00
Ananda Raju
bd1034f035 [PATCH] s2io: additional stats
Hi,
	This patch contains additional statistics counters added to s2io driver
	these statistics are very much usefull in debugging the driver.

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-02 15:16:36 -04:00
Ananda Raju
c92ca04b2a [PATCH] s2io: fixes
Hi,
	This patch contains some of the bug fixes done for S2io driver.
	Following are the brief description of changes

	1. Continuing with initialization if we get minimum required MSI-X vectors
	2. fix for ethtool online link test fails
	3. make wait_for_cmd_complete generic for all command status registers
	4. Print "Device is on PCI-E bus" for Xframe-E card
	5. CX4 requires additional delay after sw_reset, and requires higher value for igp
	6. Fixed panic due to non-TCP and/or LLC/SNAP traffic in case of lro
	7. remove legacy code for old transponder
	8. SPECIAL_REG_WRITE made to use 32-bit writes irrespective of system type
	9. handle link interrupt as per user guide for Xframe II
	10. Wait till all interrupts hndled

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-02 15:16:36 -04:00
Ananda Raju
9dc737a773 [PATCH] s2io: input parms, output messages update
hi,
	This patch contains the modification and bug fixes with respect to
	input parameters and outupt dmesages. following is brief description
	of the changes.

	1. Set default values for rx_ring_sz[0..7] and tx_fifo_len[0..7]
	2. verify few basic load parameters
	3. read product description from VPD
	4. clean up of dmesg  when driver is loaded

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-02 15:16:36 -04:00
Ananda Raju
863c11a91e [PATCH] s2io: performance improvements
hi,
	This patch contains all the changes that were done to improve
	performance of s2io driver. one line  description of the changes
	are

	1. For Non NAPI case the rx interrupt handler is being called
	   unconditionally
	2. code optimization and adding prefetch skb->data
	3. Remove modulo operations in fast path
	4. Enable Group Reads and set backoff interval to 0x1000
	5. correct PIC_CNTL_SHARED_SPLITS  macro definition, and reduce
	   pause parameter
	6. Corrected logic of identifying rx buffer level in rx_buffer_level()
	7. fix DMA map and unmap done with different sizes in 1-buf mode
	8. Removed forcible disabling of ERO
	9. Send up the packets with transfer code = 0x5

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-05-02 15:16:35 -04:00
Jeff Garzik
fb15b9dd8b Merge branch 'upstream-fixes' 2006-03-04 12:07:07 -05:00
Jeff Garzik
a7a80d5ad3 s2io: set_multicast_list bug
The mac_addr variable doesn't get reset between
(re)additions of multicast addresses. One byte
of all multicast addresses (except the first)
can be incorrect.

Signed-off-by: Arthur Kepner <akepner@sgi.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-03-04 12:06:51 -05:00
Jeff Garzik
46153552b4 Merge branch 'net-const' 2006-03-03 22:22:45 -05:00
Arjan van de Ven
f71e130966 Massive net driver const-ification. 2006-03-03 21:33:57 -05:00
Jeff Garzik
2ade43618b Merge branch 'lro' 2006-03-02 14:26:30 -05:00
Andrew Morton
79dc190147 [PATCH] s2io c99 warning fix
drivers/net/s2io.c: In function `verify_l3_l4_lro_capable':
drivers/net/s2io.c:6638: warning: ISO C90 forbids mixed declarations and code

Cc: Ravinandan Arakali <Ravinandan.Arakali@neterion.com>
Cc: Ananda Raju <Ananda.Raju@neterion.com>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-07 02:51:40 -05:00
Andrew Morton
fe9313956d [PATCH] git-netdev-all: s2io fixes
Fix this:

drivers/built-in.o(.text+0x89469): In function `s2io_get_ethtool_stats':
drivers/net/s2io.c:5209: undefined reference to `__udivdi3'

Cc: Ravinandan Arakali <Ravinandan.Arakali@neterion.com>
Cc: Ananda Raju <Ananda.Raju@neterion.com>
Cc: Adrian Bunk <bunk@stusta.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-02-07 02:51:40 -05:00
Ravinandan Arakali
7d3d0439f5 [PATCH] S2io: Large Receive Offload (LRO) feature(v2) for Neterion (s2io) 10GbE Xframe PCI-X and PCI-E NICs
Hi,
Below is a patch for the Large Receive Offload feature.
Please review and let us know your comments.

LRO algorithm was described in an OLS 2005 presentation, located at
ftp.s2io.com
user: linuxdocs
password: HALdocs

The same ftp site has Programming Manual for Xframe-I ASIC.
LRO feature is supported on Neterion Xframe-I, Xframe-II and
Xframe-Express 10GbE NICs.

Brief description:
The Large Receive Offload(LRO) feature is a stateless offload
that is complementary to TSO feature but on the receive path.
The idea is to combine and collapse(upto 64K maximum) in the
driver, in-sequence TCP packets belonging to the same session.
It is mainly designed to improve 1500 mtu receive performance,
since Jumbo frame performance is already close to 10GbE line
rate. Some performance numbers are attached below.

Implementation details:
1. Handle packet chains from multiple sessions(current default
MAX_LRO_SESSSIONS=32).
2. Examine each packet for eligiblity to aggregate. A packet is
considered eligible if it meets all the below criteria.
  a. It is a TCP/IP packet and L2 type is not LLC or SNAP.
  b. The packet has no checksum errors(L3 and L4).
  c. There are no IP options. The only TCP option supported is timestamps.
  d. Search and locate the LRO object corresponding to this
     socket and ensure packet is in TCP sequence.
  e. It's not a special packet(SYN, FIN, RST, URG, PSH etc. flags are not set).
  f. TCP payload is non-zero(It's not a pure ACK).
  g. It's not an IP-fragmented packet.
3. If a packet is found eligible, the LRO object is updated with
   information such as next sequence number expected, current length
   of aggregated packet and so on. If not eligible or max packets
   reached, update IP and TCP headers of first packet in the chain
   and pass it up to stack.
4. The frag_list in skb structure is used to chain packets into one
   large packet.

Kernel changes required: None

Performance results:
Main focus of the initial testing was on 1500 mtu receiver, since this
is a bottleneck not covered by the existing stateless offloads.

There are couple disclaimers about the performance results below:
1. Your mileage will vary!!!! We initially concentrated on couple pci-x
2.0 platforms that are powerful enough to push 10 GbE NIC and do not
have bottlenecks other than cpu%;  testing on other platforms is still
in progress. On some lower end systems we are seeing lower gains.

2. Current LRO implementation is still (for the most part) software based,
and therefore performance potential of the feature is far from being realized.
Full hw implementation of LRO is expected in the next version of Xframe ASIC.

Performance delta(with MTU=1500) going from LRO disabled to enabled:
IBM 2-way Xeon (x366) : 3.5 to 7.1 Gbps
2-way Opteron : 4.5 to 6.1 Gbps

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-27 10:34:38 -05:00
Jeff Garzik
97309d1a0b Merge branch 'upstream-fixes' 2006-01-26 22:19:57 -05:00
Ananda Raju
efd51b5c67 [PATCH] s2io: scatter-gather fix
There is a problem with fragmented skb in s2io driver version 2.0.9.4
	available in 2.6.16-rc1 kernel. The adapter will fail to transmit if
	any scatter-gather skb arrives.  This patch provides fix for the above
	described problem.

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-26 22:11:26 -05:00
Adrian Bunk
26df54bffd [PATCH] drivers/net/s2io.c: make code static
This patch makes some needlessly global code static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2006-01-17 08:39:11 -05:00
Andrew Morton
26b7625c46 [PATCH] git-netdev-all: s2io warning fix
drivers/net/s2io.c: In function `s2io_txdl_getskb':
drivers/net/s2io.c:2023: warning: cast from pointer to integer of different size
drivers/net/s2io.c: In function `s2io_open':
drivers/net/s2io.c:3325: warning: long long unsigned int format, u64 arg (arg 3)
drivers/net/s2io.c:3333: warning: long long unsigned int format, u64 arg (arg 3)
drivers/net/s2io.c: In function `s2io_eeprom_test':
drivers/net/s2io.c:4749: warning: long long unsigned int format, long unsigned int arg (arg 3)
drivers/net/s2io.c:4749: warning: long long unsigned int format, u64 arg (arg 4)
drivers/net/s2io.c:4768: warning: long long unsigned int format, long unsigned int arg (arg 3)
drivers/net/s2io.c:4768: warning: long long unsigned int format, u64 arg (arg 4)

I had to update this patch because more warnings have just appeared.

You cannot print a u64 with %l or %ll.  You do not know what type the
architecture is using.  It must be cast to a type which matches the printf
control string - unsigned long long.

The patch also fixes some overly-long strings.  Please try to keep the code
looking neat in an 80-col window.

Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Ananda Raju <Ananda.Raju@neterion.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-24 09:37:38 -05:00
Jeff Garzik
418fbfe979 Merge branch 'master' 2005-12-19 00:09:53 -05:00
Al Viro
37eb47ed44 [PATCH] s2io: __iomem annotations for recent changes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15 10:04:29 -08:00
Ananda Raju
fed5eccdcf [PATCH] s2io: UFO support
This patch implements the UFO support in S2io driver. This patch uses the UFO
interface available in linux-2.6.15 kernel.

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-18 13:28:15 -05:00
Linus Torvalds
a7c243b544 Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-11-09 08:34:36 -08:00
Olaf Hering
733482e445 [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason
This patch removes almost all inclusions of linux/version.h.  The 3
#defines are unused in most of the touched files.

A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
unfortunatly in linux/version.h.

There are also lots of #ifdef for long obsolete kernels, this was not
touched.  In a few places, the linux/version.h include was move to where
the LINUX_VERSION_CODE was used.

quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

search pattern:
/UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

Signed-off-by: Olaf Hering <olh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-09 07:55:57 -08:00
Jeff Garzik
3133c5e896 Merge git://git.tuxdriver.com/git/netdev-jwl 2005-11-07 22:54:48 -05:00
Adrian Bunk
ac1f60db6a [PATCH] drivers/net/s2io.c: make functions static
This patch makes needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-11-07 21:50:00 -05:00
Jeff Garzik
50eb800680 [netdrvr s2io] warning fixes
From Andrew Morton.
2005-11-05 23:40:46 -05:00
Ananda Raju
da6971d8ec [PATCH] S2io: Multi buffer mode support
Hi,
This patch  provides dynamic two buffer-mode and 3 buffer-mode options.
Previously 2 buffer-mode was compilation option. Now with this patch applied
one can load driver in 2 buffer-mode with module-load parameter

ie.
#insmod s2io.ko rx_ring_mode=2

This patch also provides 3 buffer-mode which provides header separation
functionality. In 3 buffer-mode skb->data will have L2/L3/L4 headers and
"skb_shinfo(skb)->frag_list->data" will have have L4 payload.
one can load driver in 3 buffer-mode with same above module-load parameter

ie.
#insmod s2io.ko rx_ring_mode=3

Please review the patch.

Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-11-05 14:40:27 -05:00
Al Viro
eef55ac7bf [PATCH] s2io iomem annotations
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-29 14:15:37 -04:00
Jesper Juhl
b4558ea93d drivers/net: Remove pointless checks for NULL prior to calling kfree() 2005-10-28 16:53:13 -04:00
Andrew Morton
923833405d [PATCH] s2io build fix
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 18:33:42 -04:00
ravinandan.arakali@neterion.com
ad4ebed00f [PATCH] S2io: Offline diagnostics fixes
This patch fixes the following bugs with offline diagnostics
code(run with "ethtool -t").

1. After running offline diagnostics, adapter would report
corrupted packets on receive. This was because of adapter not
being brought out of "RLDRAM test mode".
2. Current EEPROM test works only for Xframe I. Since Xframe II
uses different interface(SPI), support for this interface has
been added. Also, since SPI supports write access to all areas
of EEPROM, negative testing is done only for Xframe I.
3. Return values from subfunctions of offline diagnostics have
been corrected.
4. In register test, expected value from rx_queue_cfg register
is made to depend on adapter type.
5. After the test, need to restore values at EEPROM offsets
0x4F0 and 0x7F0. These locations were modified as part of test.
6. Use macro SPECIAL_REG_WRITE for write access to mc_rldram_test_ctrl
register. Also, couple of unnecessary writes to mc_rldram_test_ctrl
have been removed.

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-18 16:58:27 -04:00
John Linville
6c1792f4e8 [netdrvr s2io] Add a MODULE_VERSION entry 2005-10-04 07:51:45 -04:00
John W. Linville
dbc2309d90 [PATCH] s2io: change strncpy length arg to use size of target
Use the size of the target array for the length argument to strncpy
instead of the size of the source or a magic number.

Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-04 07:49:12 -04:00
Ravinandan Arakali
cc6e7c44f4 [PATCH] S2io: MSI/MSI-X support (runtime configurable)
This patch adds support for MSI/MSI-X feature to the driver.  It is
a runtime parameter(for now, loadable parameter).  Default is INTA.

Patch has been tested on IA64 platform with Xframe II adapter,
both of which support MSI-X feature.  An improvement of about 7%
in throughput(both Tx and Rx) was observed and a reduction by 7%
in CPU utilization during Tx test.

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-10-04 06:41:24 -04:00
Andrew Morton
6b4d617d15 [PATCH] s2io warning fixes
drivers/net/s2io.c: In function `init_shared_mem':
drivers/net/s2io.c:431: warning: cast from pointer to integer of different size
drivers/net/s2io.c: In function `free_shared_mem':
drivers/net/s2io.c:662: warning: cast from pointer to integer of different size

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14 08:03:34 -04:00
Linus Torvalds
55faed1e60 Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2005-09-07 17:22:43 -07:00
viro@zenIV.linux.org.uk
8ae418cf85 [PATCH] s2io u64 use for uintptr_t
u64 is not uintptr_t; unsigned long is...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-07 17:16:52 -07:00
ravinandan.arakali@neterion.com
776bd20fa2 [PATCH] S2io: Hardware and miscellaneous fixes
Hi,
This patch contains the following hardware related fixes and other
miscellaneous bug fixes.

1. Updated the definition of single and double-bit ECC errors
2. Earlier we were allocating Transmit descriptors equal to
   MAX_SKB_FRAGS. This was causing a boundary condition failure.
   Need to allocate MAX_SKB_FRAGS+1 descriptors.
3. On some platforms(like PPC), pci_alloc_consistent() can return
   a zero DMA address. Since the NIC cannot handle zero-addresses,
   a workaround has been provided. Basically, we don't use such
   that page. We reallocate.
4. If list_info allocation failed during driver load, check for
   it during driver exit and return instead of trying to dereference
   NULL pointer.
5. Increase the debug level of few non-critical debug messages.
6. Reset the card on critical ECC double errors only in case of
   XframeI since XframeII can recover from such errors.
7. Print copyright message on driver load.
8. Bumped up the driver version no. to 2.0.8.1

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-06 22:12:57 -04:00
viro@ftp.linux.org.uk
509a2671a4 [PATCH] (3/7) iomem annotations (s2io)
Signed-off-by: Al Viro <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-05 17:57:23 -04:00
ravinandan.arakali@neterion.com
e960fc5c7d [PATCH] S2io: Hardware fixes for Xframe II adapter
Hi,

Patch Description:
This patch incorporates the following hardware fixes required
for Xframe II adapter.
1. New values to program the dtx_control register.
2. Disable memory controller interrupts(MC_INTR) since these
   are now monitored thru' a poll routine.
3. Don't reset an XframeII card on an ECC double-bit error(It
   can recover).
4. Save/restore PCI config space before/after a reset irrespective
   of Xframe I or II card.
5. Bumped up the driver version no. to 2.0.3.1

Please review the patch and apply the same if it looks ok.

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-19 21:42:06 -04:00
raghavendra.koushik@neterion.com
303bcb4b67 [PATCH] S2io: Errors found during review
Hi,
This is a patch to incorporate comments from earlier 12 patches.
It also fixes a few issues we found during this time.
Following is a list of changes in this patch. Item 1 incorporates
earlier comments. Issues addressed in items 2 to 4 were discovered
recently.

1. wmb() call in s2io_xmit() replaced with mmiowb().
2. The dtx_control register was earlier programmed incorrectly
   for Xframe II adapter.
3. As suggested by hardware team, after a reset, in case of
   Xframe II adapter, we clear certain spurious errors by
   clearing PCI-X ECC status register, "detected parity error"
   bit in PCI_STATUS register and PCI_STATUS bit in txpic_int register.
4. On IBM PPC platforms, we found that in the Rx buffer replenish
   function, two memory writes(one to the the descriptor length and
   another to the ownership) were getting reordered. This was causing
   the adapter to see the ownership transfered to it before the length
   was updated.

   One solution was to add a wmb() but since this would turnout expensive
   on some platforms if called for every descriptor, we set the ownership
   bit and other fields of '2' to 'N' Rx descriptors followed by a wmb()
   and then set the ownership of first descriptor ('1').

   Here the value 'N' is configurable by making it a module loadable
   parameter (rxsync_frequency).
   (NOTE: This parameter is a power of 2).
5. Bumped up the driver version no. to 2.0.2.1

Signed-off-by: Ravinandan Arakali <ravinandan.arakali@neterion.com>
Signed-off-by: Raghavendra Koushik <raghavendra.koushik@neterion.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-08-11 00:10:46 -04:00