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path: root/drivers/net/sfc/falcon.c
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* sfc: make function tables conststephen hemminger2011-04-15
| | | | | | | | | | | | The phy, mac, and board information structures should be const. Since tables contain function pointer this improves security (at least theoretically). Compile tested only. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Fix common misspellingsLucas De Marchi2011-03-31
| | | | | | Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
* sfc: Remove configurable FIFO thresholds for pause frame generationBen Hutchings2011-02-28
| | | | | | | | | | | | | | | | In Falcon we can configure the fill levels of the RX data FIFO which trigger the generation of pause frames (if enabled), and we have module parameters for this. Siena does not allow the levels to be configured (or, if it does, this is done by the MC firmware and is not configurable by drivers). So far as I can tell, the module parameters are not used by our internal scripts and have not been documented (with the exception of the short parameter descriptions). Therefore, remove them and always initialise Falcon with the default values. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
* sfc: Update copyright datesBen Hutchings2011-02-28
| | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
* Merge branch 'linux-next' of ↵Linus Torvalds2011-01-14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI/PM: Report wakeup events before resuming devices PCI/PM: Use pm_wakeup_event() directly for reporting wakeup events PCI: sysfs: Update ROM to include default owner write access x86/PCI: make Broadcom CNB20LE driver EMBEDDED and EXPERIMENTAL x86/PCI: don't use native Broadcom CNB20LE driver when ACPI is available PCI/ACPI: Request _OSC control once for each root bridge (v3) PCI: enable pci=bfsort by default on future Dell systems PCI/PCIe: Clear Root PME Status bits early during system resume PCI: pci-stub: ignore zero-length id parameters x86/PCI: irq and pci_ids patch for Intel Patsburg PCI: Skip id checking if no id is passed PCI: fix __pci_device_probe kernel-doc warning PCI: make pci_restore_state return void PCI: Disable ASPM if BIOS asks us to PCI: Add mask bit definition for MSI-X table PCI: MSI: Move MSI-X entry definition to pci_regs.h Fix up trivial conflicts in drivers/net/{skge.c,sky2.c} that had in the meantime been converted to not use legacy PCI power management, and thus no longer use pci_restore_state() at all (and that caused trivial conflicts with the "make pci_restore_state return void" patch)
| * PCI: make pci_restore_state return voidJon Mason2010-12-23
| | | | | | | | | | | | | | | | | | | | | | pci_restore_state only ever returns 0, thus there is no benefit in having it return any value. Also, a large majority of the callers do not check the return code of pci_restore_state. Make the pci_restore_state a void return and avoid the overhead. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
* | sfc: Store MAC address from NVRAM in net_device::perm_addrBen Hutchings2010-12-03
| | | | | | | | | | | | | | | | For some reason we failed to make this change when perm_addr was introduced. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Move xmac_poll_required into struct falcon_nic_dataBen Hutchings2010-12-03
| | | | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Move Falcon global event handling to falcon.cBen Hutchings2010-12-03
| | | | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Move mdio_lock to struct falcon_nic_dataBen Hutchings2010-12-03
| | | | | | | | | | | | | | | | We only have direct access to MDIO on Falcon, so move this out of struct efx_nic. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Move SPI state to struct falcon_nic_dataBen Hutchings2010-12-03
| | | | | | | | | | | | | | | | We only have direct access to SPI on Falcon, so move all this state out of struct efx_nic. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Remove unnecessary inclusion of various private header filesBen Hutchings2010-12-03
| | | | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Remove broken automatic fallback for invalid Falcon chip/board configBen Hutchings2010-12-03
|/ | | | | | | | | | If the Falcon board config is invalid, we cannot proceed - we do not have a valid board type to pass to falcon_probe_board(), and if we kluge that to work with an unknown board then other initialisation code will crash. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add support for SFE4003 board and TXC43128 PHYBen Hutchings2010-09-22
| | | | | | | | This board never went into production, but some engineering samples are in use. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Remove support for SFN4111T, SFT9001 and Falcon GMACBen Hutchings2010-09-22
| | | | | | | | | | | SFN4111T never reached production and is not being used for internal or customer testing. Since we have no production Falcon boards using the SFT9001 or the GMAC, remove support for them as well. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Implement the ethtool RX n-tuple control functionsBen Hutchings2010-09-21
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Allocate each channel separately, along with its RX and TX queuesBen Hutchings2010-09-10
| | | | | | | | | | This will allow for reallocation of channel structures and rings. Change module parameter separate_tx_channels to be read-only, since we now require its value to be constant. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Use Toeplitz IPv4 hash for RSS and hash insertionBen Hutchings2010-06-26
| | | | | | | Insertion of the Falcon hash is unreliable. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Record hardware RX hash on each skb where possibleBen Hutchings2010-06-25
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Implement message level controlBen Hutchings2010-06-25
| | | | | | | | | | | | | | | Replace EFX_ERR() with netif_err(), EFX_INFO() with netif_info(), EFX_LOG() with netif_dbg() and EFX_TRACE() and EFX_REGDUMP() with netif_vdbg(). Replace EFX_ERR_RL(), EFX_INFO_RL() and EFX_LOG_RL() using explicit calls to net_ratelimit(). Implement the ethtool operations to get and set message level flags, and add a 'debug' module parameter for the initial value. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Workaround flush failures on Falcon B0Steve Hodgson2010-06-02
| | | | | | | | | | | | | | | | | | | Under certain conditions a PHY may backpressure Falcon B0 in such a way that flushes timeout. In normal circumstances the phy poller would fix the PHY, and the flush could complete. But efx_nic_flush_queues() is always called after efx_stop_all(), so the poller has been stopped. Even if this weren't the case, how long would we have to wait for the poller to fix this? And several callers of efx_nic_flush_queues() are about to reset the device anyway - so we don't need to do anything. Work around this bug by scheduling a reset. Ensure that the MAC is never rewired back into the datapath before the reset runs (we already ignore all rx events anyway). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2010-05-03
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * sfc: Change falcon_probe_board() to fail for unsupported boardsBen Hutchings2010-04-28
| | | | | | | | | | | | | | | | | | | | The driver needs specific PHY and board support code for each SFC4000 board; there is no point trying to continue if it is missing. Currently unsupported boards can trigger an 'oops'. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Cc: stable@kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Reconfigure the XAUI serdes after an EM resetSteve Hodgson2010-04-28
| | | | | | | | | | | | | | | | Fix a regression introduced in d3245b28ef2a45ec4e115062a38100bd06229289 "sfc: Refactor link configuration". Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sfc: Handle serious errors in exactly one interrupt handlerSteve Hodgson2010-04-28
|/ | | | | | | | | | | | | 'Fatal' errors set an interrupt flag associated with a specific event queue; only read the syndrome vector if we see that queue's flag set (legacy interrupts) or in the interrupt handler for that queue (MSI). Do not ignore an interrupt if the fatal error flag is set but specific error flags are all zero. Even if we don't schedule a reset, we must respect the queue mask and rearm the appropriate event queues. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* sfc: Fix some incorrect or redundant commentsBen Hutchings2010-02-03
| | | | | | | | | In particular, the comment about EVQ_RPTR_REG is based on inconsistent preliminary hardware documentation, though the following code was fixed long before release. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add some missing bits to register self-test masksSteve Hodgson2010-02-03
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Enable autonegotiated flow-control by default if supportedSteve Hodgson2010-02-03
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Move PHY software state initialisation from init() into probe()Steve Hodgson2009-12-23
| | | | | | | | | | | | This prevents efx->link_advertising from being blatted during a reset. The phy_short_reach sysfs node is now destroyed later in the port shutdown process, so check for STATE_RUNNING after acquiring the rtnl_lock (just like in set_phy_flash_cfg). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Update version, copyright dates, authorsBen Hutchings2009-11-29
| | | | | | | | This driver has been mostly rewritten since Michael Brown's initial work, so swap the order of the authors. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Move shared NIC code from falcon.c to new source file nic.cBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Rename falcon.h to nic.hBen Hutchings2009-11-29
| | | | | | | nic.h is no longer specific to Falcon. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Allow for additional checksum offload featuresBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Extend MTD driver for use with new NICsBen Hutchings2009-11-29
| | | | | | | | | | | In new NICs flash is managed by firmware and we will use high-level operations on partitions rather than direct SPI commands. Add support for multiple MTD partitions per flash device and remove the direct link between MTD and SPI devices. Maintain a list of MTD partitions in struct efx_nic. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Remove static PHY data and enumerationsBen Hutchings2009-11-29
| | | | | | | | | New NICs have firmware managing the PHY, and we will discover the PHY capabilities at run-time. Replace the static data with probe() and test_name() operations. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Fold falcon_probe_nic_variant() into falcon_probe_nic()Ben Hutchings2009-11-29
| | | | | | | | falcon_probe_nic_variant() does a lot less than it used to, and a lot less than it claims to. Fold the remainder into its caller. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Separate shared NIC code from Falcon-specific and rename accordinglyBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add efx_nic_type operation for identity LED controlBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add efx_nic_type operation for NVRAM self-testBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add efx_nic_type operation for register self-testBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Implement ethtool reset operationBen Hutchings2009-11-29
| | | | | | | Refactor efx_reset_down() and efx_reset_up() accordingly. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Add power-management and wake-on-LAN supportBen Hutchings2009-11-29
| | | | | | | | Wake-on-LAN is a stub for Falcon, but will be implemented fully for new NICs. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Refactor link configurationBen Hutchings2009-11-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor PHY, MAC and NIC configuration operations so that the existing link configuration can be re-pushed with: efx->phy_op->reconfigure(efx); efx->mac_op->reconfigure(efx); and a new configuration with: efx->nic_op->reconfigure_port(efx); (plus locking and error-checking). We have not held the link settings in software (aside from flow control), and have relied on asking the hardware what they are. This is a problem because in some cases the hardware may no longer be in a state to tell us. In particular, if an entire multi-port board is reset through one port, the driver bindings to other ports have no chance to save settings before recovering. We only actually need to keep track of the autonegotiation settings, so add an ethtool advertising mask to struct efx_nic, initialise it in PHY init and update it as necessary. Remove now-unneeded uses of efx_phy_op::{get,set}_settings() and struct ethtool_cmd. Much of this was done by Steve Hodgson <shodgson@solarflare.com>. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Move Falcon NIC operations to efx_nic_typeBen Hutchings2009-11-29
| | | | | | | This is preparation for adding differing implementations for new NICs. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Turn pause frame generation on and off at the MAC, not the RX FIFOBen Hutchings2009-11-29
| | | | | | | | | | Pause frame generation is gated by both RX_XOFF_MAC_EN and an enable bit in each MAC. RX_XOFF_MAC_EN bit always reads back as 0 so we need to set it correctly every time we modify RX_CFG_REG. Simplify this by always setting it to 1 and only changing the enable bits in the MACs. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Remove duplicate hardware structure definitionsBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Remove redundant writes to INT_ADR_KERBen Hutchings2009-11-29
| | | | | | | | This register only needs to be written after reset, not each time we enable interrupts. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Clean up RX event handlingBen Hutchings2009-11-29
| | | | | | | | | Add 'likely' hint to test of rx_checksum_enabled. Don't count IP fragments; the IP stack can do that. Do count non-matching multicast packets. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* sfc: Move descriptor cache base addresses to struct efx_nic_typeBen Hutchings2009-11-29
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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