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path: root/drivers/net/s2io.c
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* [netdrvr] Fix IOMMU overflow checking in s2io.cAndi Kleen2008-06-27
| | | | | | | | | | | | | | | | | | | | | | | | s2io has IOMMU overflow checking, but unfortunately it is wrong. It didn't use the standard macros, which meant that it only worked on POWER and SPARC because only those define DMA_ERROR_CODE. Convert it to use the standard macros instead. I also commented two more bugs in the IOMMU handling. It assumes that 0 DMA addresses cannot happen, but that's not true in all IOMMU setups. The information if a buffer has been already mapped needs to be stored elsewhere. Didn't fix those because it needs careful checking of the buffer handling by the maintainers. Cc: ram.vepa@neterion.com Cc: santosh.rastapur@neterion.com Cc: sivakumar.subramani@neterion.com Cc: sreenivasa.honnur@neterion.com Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* s2io iomem annotationsAl Viro2008-06-04
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* S2io: Version update for napi and MSI-X patchesSreenivasa Honnur2008-05-22
| | | | | | | | - Updated version number Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Added napi support when MSIX is enabled.Sreenivasa Honnur2008-05-22
| | | | | | | | | - Added napi support when MSIX is enabled. - Moved test_msi function from s2io_open to probe function. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Move all the transmit completions to a single msi-x (alarm) vectorSreenivasa Honnur2008-05-22
| | | | | | | | | - Move all the transmit completions to a single msi-x (alarm) vector. - Enable the continuous timer interrupt for only one transmit fifo. Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* s2io: add missing block braces to multistatement if statementIlpo Järvinen2008-05-22
| | | | | | | | | Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> 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> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Version update for multi ring patchesSreenivasa Honnur2008-04-29
| | | | | | | | | - Updated version number. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Enable multi ring supportSreenivasa Honnur2008-04-29
| | | | | | | | | | | | | | | | - Seperate ring specific data - Initialize all configured rings with equal priority. - Updated boundary check for number of Rings. - Updated per ring statistics of rx_bytes and rx_packets. - Moved lro struct from struct s2io_nic to struct ring_info. - Access respective rx ring directly in fill_rx_buffers. - Moved rx_bufs_left struct s2io_nic to struct ring_info. - Added per ring variables - rxd_mode, rxd_count, dev, pdev. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Removed rx_lock and put_lockSreenivasa Honnur2008-04-25
| | | | | | | | | | - Removed rx_lock and put_lock as the buffer replenishment and receive completion is handled serially. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Removed receive buffer replenishment taskletSreenivasa Honnur2008-04-25
| | | | | | | | | | | - Removed receive buffer replenishment tasklet s2io_tasklet and instead allocating the receive buffers in either the interrupt handler (no napi) or the napi handler (napi enabled). Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Version update for memory leak fix during free_tx_buffersSreenivasa Honnur2008-04-25
| | | | | | | | - Updated version number. Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* S2io: Fix memory leak during free_tx_buffersSreenivasa Honnur2008-04-25
| | | | | | | | - Fix the memory leak during free_tx_buffers. Signed-off-by: Santosh Rastapur <santosh.rastapur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Merge branch 'master' of ↵David S. Miller2008-04-03
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/s2io.c
| * S2io: Version update for Tx completion patchSreenivasa Honnur2008-03-28
| | | | | | | | | | | | | | | | | | | | - Updated version number. - Resubmitting with correct version update. - this patch to be applied for upstream-davem branch Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | Merge branch 'master' of ↵David S. Miller2008-03-27
|\| | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/usb/rndis_host.c drivers/net/wireless/b43/dma.c net/ipv6/ndisc.c
| * S2io: Handle TX completions on the same CPU as the sender for MIS-X interruptsSreenivasa Honnur2008-03-25
| | | | | | | | | | | | | | - Handling TX completions on the same cpu as the sender. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | s2io annotationsAl Viro2008-03-26
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | S2io: Version update for multiqueue and vlan patchesSreenivasa Honnur2008-03-17
| | | | | | | | | | | | | | | | - Updated version number. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | S2io: Support for vlan_rx_kill_vid entry pointSreenivasa Honnur2008-03-17
| | | | | | | | | | | | | | | | | | | | | | - Resubmit #3 - Added s2io_vlan_rx_kill_vid entry point function for unregistering vlan. - Fix to aggregate vlan packets. IP offset is incremented by 4 bytes if the packet contains vlan header. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | S2io: Multiqueue network device support - FIFO selection based on L4 portsSreenivasa Honnur2008-03-17
| | | | | | | | | | | | | | | | | | | | | | | | | | - Resubmit #2 - Transmit fifo selection based on TCP/UDP ports. - Added tx_steering_type loadable parameter for transmit fifo selection. 0x0 NO_STEERING: Default FIFO is selected. 0x1 TX_PRIORITY_STEERING: FIFO is selected based on skb->priority. 0x2 TX_DEFAULT_STEERING: FIFO is selected based on L4 Ports. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* | S2io: Multiqueue network device support implementationSreenivasa Honnur2008-03-17
|/ | | | | | | | | | | | | | | | | | | | | | | - Resubmit #3 Multiqueue netwrok device support implementation. - Added a loadable parameter "multiq" to enable/disable multiqueue support, by default it is disabled. - skb->queue_mapping is not used for queue/fifo selection. FIFO selection is based on skb->priority. - Added per FIFO flags FIFO_QUEUE_START and FIFO_QUEUE_STOP. Check this flag for starting and stopping netif queue and update the flags accordingly. - In tx_intr_handler added a check to ensure that we have free TXDs before wak- ing up the queue. - Added helper functions for queue manipulation(start/stop/wakeup) to invoke appropriate netif_ functions. - Calling netif_start/stop for link up/down case respectively. - As per Andi kleen's review comments, using skb->priority field for FIFO selection. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* make s2io.c:init_tti() staticAdrian Bunk2008-03-05
| | | | | | | | | Make the needlessly global init_tti() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: "Ramkrishna Vepa" <Ramkrishna.Vepa@neterion.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Fix for LRO BugsSurjit Reang2008-02-03
| | | | | | | | | | | | | | | | | Resubmitting patch from Al Viro <viro@zeniv.linux.org.uk>, with subject - [PATCH] s2io LRO bugs. a) initiate_new_session() sets ->tcp_ack to ntohl(...); everything else stores and expects to find there the net-endian value. b) check for monotonic timestamps in verify_l3_l4_lro_capable() compares the value sitting in TCP option (right there in the skb->data, net-endian 32bit) with the value picked from earlier packet. Doing that without ntohl() is an interesting idea and it might even work occasionally; unfortunately, it's quite broken. Signed-off-by: Surjit Reang <surjit.reang@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>
* S2io: Fixes to enable multiple transmit fifosRamkrishna Vepa2008-01-28
| | | | | | | | | | | | | | | Multiple transmit fifo initialization - - Assigned equal scheduling priority for all configured FIFO's. - Modularized transmit traffic interrupt initialization since it is executed in s2io_card_up and s2io_link. Enable continuous tx interrupt when link is UP and vice verse. - Enable transmit interrupts for all configured transmit fifos. - Fixed typo errors. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Fixes to enable multiple transmit fifo supportSurjit Reang2008-01-28
| | | | | | | | | | | | | | | | Fixes to enable multiple transmit fifos (upto a maximum of eight). - Moved single tx_lock from struct s2io_nic to struct fifo_info. - Moved single ufo_in_band_v structure from struct s2io_nic to struct fifo_info. - Assign the respective interrupt number for the transmitting fifo in the transmit descriptor (TXD). - Added boundary checks for number of FIFOs enabled and FIFO length. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@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>
* drivers/net: Add missing "space"Joe Perches2008-01-28
| | | | | Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [S2IO]: Support for add/delete/store/restore ethernet addressesSreenivasa Honnur2008-01-28
| | | | | | | - Support to add/delete/store/restore 64 and 128 Ethernet addresses for Xframe I and Xframe II respectively. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: use ARRAY_SIZE() instead of sizeof(array) / ETH_GSTRING_LENAlejandro Martinez Ruiz2008-01-28
| | | | | | | | Using ARRAY_SIZE() on arrays of the form array[][K] makes it unnecessary to know the value of K when checking its size. Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Fixed synchronization between scheduling of napi with card reset and closeSreenivasa Honnur2008-01-18
| | | | | | | | | | - Fixed synchronization between scheduling of napi with card reset and close by moving the enabling and disabling of napi to card up and card down functions respectively instead of open and close. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [NET]: Do not check netif_running() and carrier state in ->poll()David S. Miller2008-01-09
| | | | | | | | | | Drivers do this to try to break out of the ->poll()'ing loop when the device is being brought administratively down. Now that we have a napi_disable() "pending" state we are going to solve that problem generically. Signed-off-by: David S. Miller <davem@davemloft.net>
* drivers/net/s2io.c section fixesAdrian Bunk2007-12-14
| | | | | | | | | | | | | | | | | Code used by the non-__devinit s2io_open() mustn't be __devinit. This patch fixes the following section mismatch with CONFIG_HOTPLUG=n: <-- snip --> ... WARNING: vmlinux.o(.text+0x6f6e3e): Section mismatch: reference to .init.text.20:s2io_test_intr (between 's2io_open' and 's2io_ethtool_sset') ... <-- snip --> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Check for register initialization completion before accesing device ↵Sreenivasa Honnur2007-12-07
| | | | | | | | | | | | registers - Making sure register initialisation is complete before proceeding further. The driver must wait until initialization is complete before attempting to access any other device registers. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Fixed the case when the card initialization fails on mtu changeSreenivasa Honnur2007-12-01
| | | | | | | | | | | | | | Fix the case when the card initialization fails on a mtu change and then close is called (due to ifdown), which frees non existent rx buffers. - Returning appropriate error codes in init_nic function. - In s2io_close function s2io_card_down is called only when device is up. - In s2io_change_mtu function return value of s2io_card_up function is checked and returned if it failed. Signed-off-by: Surjit Reang <surjit.reang@neterion.com> Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* [S2IO]: Fixed memory leak when MSI-X vector allocation failsSreenivasa Honnur2007-11-14
| | | | | | | | | | | | | | | - Fixed memory leak by freeing MSI-X local entry memories when vector allocation fails in s2io_add_isr. - Added two utility functions remove_msix_isr and remove_inta_isr to eliminate code duplication. - Incorporated following review comments from Jeff - Removed redundant stats->mem_freed and synchronize_irq call - do_rem_msix_isr is renamed as remove_msix_isr - do_rem_inta_isr is renamed as remove_inta_isr Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* s2io, rename BIT macroJiri Slaby2007-10-19
| | | | | | | | | | | | | | | 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>
* s2io: sparse warnings fix (rev2)Stephen Hemminger2007-10-10
| | | | | | | | 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>
* S2io: Updating transceiver information in ethtool functionSivakumar Subramani2007-10-10
| | | | | | | - Update transceiver information in ethtool function Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* S2io: Added support set_mac_address driver entry pointSivakumar Subramani2007-10-10
| | | | | | | | | | | | - 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>
* S2io: Removed unused feature - bimodal interruptsSivakumar Subramani2007-10-10
| | | | | | | | | | 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]
* S2io: Change kmalloc+memset to k[zc]allocSivakumar Subramani2007-10-10
| | | | | | | | | - 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>
* [netdrvr] Stop using legacy hooks ->self_test_count, ->get_stats_countJeff Garzik2007-10-10
| | | | | | | 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>
* [NET]: Introduce and use print_mac() and DECLARE_MAC_BUF()Joe Perches2007-10-10
| | | | | | | 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>
* [ETHTOOL] Provide default behaviors for a few ethtool sub-ioctlsJeff Garzik2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [NET]: Nuke SET_MODULE_OWNER macro.Ralf Baechle2007-10-10
| | | | | | | | | | | | 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>
* S2io: code Optimization of isr functionSivakumar Subramani2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | - 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>
* S2io: Check for device state before handling trafficSivakumar Subramani2007-10-10
| | | | | | | | | | | - 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>
* S2io: Cleanup - removed unused variable intr_typeSivakumar Subramani2007-10-10
| | | | | | | | | | | | - 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>
* [S2IO]: Handle and monitor all of the device errors and alarmsSivakumar Subramani2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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>
* S2io: Enable all the error and alarm indicationsSivakumar Subramani2007-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - 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>
* S2IO: Fixed Link LED issue when MSI-X is enabledSivakumar Subramani2007-10-10
| | | | | | | | -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>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-16 09:35:26 -0500