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path: root/drivers/net/s2io.c
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2007-02-14[PATCH] remove many unneeded #includes of sched.hTim Schmielau
After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09[PATCH] trivial s2io annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-05s2io: De-typedef driver.Ralf Baechle
Removed namespace collisions due to usage of nic_t as per Ralf's patch Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-05s2io: Removed enabling of some of the unused interrupts.Sivakumar Subramani
Removed unused code in en_dis_able_nic_intrs(), TX_DMA_INTR, RX_DMA_INTR, TX_XGXS_INTR, MC_INTR Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-05s2io: Fixes in updating skb->truesize and code cleanup.Sivakumar Subramani
1. Fix for updating skb->truesize properly. 2. Disable NAPI only if more than one ring configured in case of MSI/MSI-X interrupts. Previously we were disabling NAPI irrespective of number of rings when MSI/MSI-X interrupts were used. 3. Code cleanup. Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-05S2IO: Fixes for reset and link handling.Sivakumar Subramani
1. Fix for reset and link handling. 2. Allow for promiscuos mode and multicast state be maintained through ifconfig up and down. 3. Support to print adapter serial number. Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-05s2io: Making LRO and UFO as module loadable parameter.Sivakumar Subramani
This patch adds two load parameters napi and ufo. Previously NAPI was compilation option with these changes wan enable disable NAPI using load parameter. Also we are introducing ufo load parameter to enable/disable ufo feature Signed-off-by: Sivakumar Subramani <sivakumar.subramani@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-02-05remove NETIF_F_TSO ifdeferyArjan van de Ven
Remove the NETIF_F_TSO #ifdef-ery in drivers/net; this was for old-old-2.4 compat (even current 2.4 has NETIF_F_TSO) but it's time to get rid of it by now. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-01-23[PATCH] s2io bogus memsetAl Viro
memset() after kmalloc() on size * 8 would better be on size * 8, not just size; fixed by switching to kcalloc() - it's more idiomatic anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2006-11-22WorkStruct: make allyesconfigDavid Howells
Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
2006-10-31[PATCH] net s2io: return on NULL dev_alloc_skb()David Rientjes
Checks for NULL dev_alloc_skb() and returns on true to avoid subsequent dereference. Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Christoph Hellwig <hch@infrared.org> Signed-off-by: David Rientjes <rientjes@cs.washington.edu> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-09-25[PATCH] more s2io __iomem annotationsAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-25[PATCH] 64bit bugs in s2ioAl Viro
le32_to_cpu() on 64bit values Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-24Merge branch 'upstream-linus' of ↵Linus Torvalds
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: (217 commits) net/ieee80211: fix more crypto-related build breakage [PATCH] Spidernet: add ethtool -S (show statistics) [NET] GT96100: Delete bitrotting ethernet driver [PATCH] mv643xx_eth: restrict to 32-bit PPC_MULTIPLATFORM [PATCH] Cirrus Logic ep93xx ethernet driver r8169: the MMIO region of the 8167 stands behin BAR#1 e1000, ixgb: Remove pointless wrappers [PATCH] Remove powerpc specific parts of 3c509 driver [PATCH] s2io: Switch to pci_get_device [PATCH] gt96100: move to pci_get_device API [PATCH] ehea: bugfix for register access functions [PATCH] e1000 disable device on PCI error drivers/net/phy/fixed: #if 0 some incomplete code drivers/net: const-ify ethtool_ops declarations [PATCH] ethtool: allow const ethtool_ops [PATCH] sky2: big endian [PATCH] sky2: fiber support [PATCH] sky2: tx pause bug fix drivers/net: Trim trailing whitespace [PATCH] ehea: IBM eHEA Ethernet Device Driver ... Manually resolved conflicts in drivers/net/ixgb/ixgb_main.c and drivers/net/sky2.c related to CHECKSUM_HW/CHECKSUM_PARTIAL changes by commit 84fa7933a33f806bbbaae6775e87459b1ec584c0 that just happened to be next to unrelated changes in this update.
2006-09-22[NET]: Replace CHECKSUM_HW by CHECKSUM_PARTIAL/CHECKSUM_COMPLETEPatrick McHardy
Replace CHECKSUM_HW by CHECKSUM_PARTIAL (for outgoing packets, whose checksum still needs to be completed) and CHECKSUM_COMPLETE (for incoming packets, device supplied full checksum). Patch originally from Herbert Xu, updated by myself for 2.6.18-rc3. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-19[PATCH] s2io: Switch to pci_get_deviceAlan Cox
We want the pci devices ref counted against hotplug. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13drivers/net: const-ify ethtool_ops declarationsJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-09-13drivers/net: Trim trailing whitespaceJeff Garzik
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19drivers/net: Remove deprecated use of pci_module_init()Jeff Garzik
From: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-08-19[PATCH] s2io build fixAndrew Morton
sparc32: drivers/net/s2io.c:2636: warning: implicit declaration of function 'disable_irq' drivers/net/s2io.c:2656: warning: implicit declaration of function 'enable_irq' Cc: 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>
2006-08-03[PATCH] s2io driver bug fixes #2Ananda Raju
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[PATCH] s2io driver bug fixes #1Ananda Raju
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>
2006-07-12[PATCH] s2io driver irq fixAnanda Raju
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>
2006-07-02[PATCH] irq-flags: drivers/net: Use the new IRQF_ constantsThomas Gleixner
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>
2006-06-30Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds
* 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[IPV6]: Added GSO support for TCPv6Herbert Xu
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>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-23[NET]: Merge TSO/UFO fields in sk_buffHerbert Xu
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>
2006-06-20[PATCH] s2io: netpoll supportBrian Haley
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>
2006-05-24[PATCH] drivers/net/s2io.c: make bus_speed[] staticAdrian Bunk
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>
2006-05-02[PATCH] s2io: init/shutdown fixesAnanda Raju
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[PATCH] s2io: additional statsAnanda Raju
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[PATCH] s2io: fixesAnanda Raju
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[PATCH] s2io: input parms, output messages updateAnanda Raju
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[PATCH] s2io: performance improvementsAnanda Raju
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>
2006-03-04Merge branch 'upstream-fixes'Jeff Garzik
2006-03-04s2io: set_multicast_list bugJeff Garzik
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>
2006-03-03Merge branch 'net-const'Jeff Garzik
2006-03-03Massive net driver const-ification.Arjan van de Ven
2006-03-02Merge branch 'lro'Jeff Garzik
2006-02-07[PATCH] s2io c99 warning fixAndrew Morton
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[PATCH] git-netdev-all: s2io fixesAndrew Morton
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>
2006-01-27[PATCH] S2io: Large Receive Offload (LRO) feature(v2) for Neterion (s2io) ↵Ravinandan Arakali
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>
2006-01-26Merge branch 'upstream-fixes'Jeff Garzik
2006-01-26[PATCH] s2io: scatter-gather fixAnanda Raju
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>
2006-01-17[PATCH] drivers/net/s2io.c: make code staticAdrian Bunk
This patch makes some needlessly global code static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-12-24[PATCH] git-netdev-all: s2io warning fixAndrew Morton
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>
2005-12-19Merge branch 'master'Jeff Garzik
2005-12-15[PATCH] s2io: __iomem annotations for recent changesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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