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* sfc: Use pci_map_single() to map the skb header when doing TSOBen Hutchings2008-09-03
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Don't leak PCI DMA maps in the TSO code when the queue fills upBen Hutchings2008-09-03
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Speed up loopback self-testBen Hutchings2008-09-03
| | | | | | | | | | | | | | Add efx_poll_loopback() function to test for successful completion of test. Change efx_test_loopback() to end the test after 1 ms if efx_poll_loopback() indicates success, and otherwise to wait for 100 ms as before. While we're here, rename efx_{rx,tx}_loopback() to efx_{begin,end}_loopback() which more accurately reflect their purpose. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Self-test reporting cleanupBen Hutchings2008-09-03
| | | | | | | | Removed log messages that are redundant with calling functions. Fixed bitwise or-ing of return codes. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Reduce log level for XGXS lane statusBen Hutchings2008-09-03
| | | | | | | This was making noise during 10Xpress self-test. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Reverse the XOFF/XON pause frame control fifo thresholdsBen Hutchings2008-09-03
| | | | | | | | These were clearly bogus. From: Steve Hodgson <shodgson@solarflare.com> Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Remove inclusion of workarounds.h from efx.cBen Hutchings2008-09-03
| | | | | | | efx.c does not use hardware workarounds. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: XMAC statistics fix-upsBen Hutchings2008-09-03
| | | | | | | | | | Exclude assumed size of RX control frames from rx_bad_bytes. Exclude assumed size of TX control frames from tx_good_bytes for consistency with rx_good_bytes. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Remove mistaken hardware workaroundBen Hutchings2008-09-03
| | | | | | | | We believed that some valid SNAP frames were being marked as invalid. In fact this is not the case and no workaround is needed. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Reduce delays in SFE4001 initialisationBen Hutchings2008-09-03
| | | | | | | | | | Currently the board initialisation includes 2 delays of 1 second each. Usually it is unnecessary to wait that long, so check before doing so. Correct some of the comments and log messages while we're here. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Avoid mangling error codes in efx_test_loopback()Ben Hutchings2008-09-03
| | | | | | | | | efx_test_loopback() used "|" to combine the results of the RX and TX phases. If both phases fail with different error codes, this results in a bogus error code. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use separate hardware TX queues to select checksum generationBen Hutchings2008-09-03
| | | | | | | | | | | | | | | | Checksum generation is an attribute of our hardware TX queues, not TX descriptors. We previously used a single queue and turned checksum generation on or off as requested through ethtool. However, this can result in regenerating checksums in raw packets that should not be modified. We now create 2 hardware TX queues with checksum generation on or off. They are presented to the net core as one queue since it does not know how to select between them. The self-test verifies that a bad checksum is unaltered on the queue with checksum generation off. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Remove unused field efx_channel::reset_workSteve Hodgson2008-09-03
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Change first parameter type of {set,clear}_bit_le() to unsignedBen Hutchings2008-09-03
| | | | | | | This means the compiler doesn't need to use real division instructions. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Replace net_dev->priv with netdev_priv(net_dev)Ben Hutchings2008-09-03
| | | | | | | Use of the net_device::priv field is deprecated. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* dma-mapping: add the device argument to dma_mapping_error()FUJITA Tomonori2008-07-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sfc: Create one RX queue and interrupt per CPU package by defaultBen Hutchings2008-07-22
| | | | | | | | | | | Using multiple cores in the same package to handle received traffic does not appear to provide a performance benefit. Therefore use CPU topology information to count CPU packages and use that as the default number of RX queues and interrupts. We rely on interrupt balancing to spread the interrupts across packages. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use a separate workqueue for resetsBen Hutchings2008-07-22
| | | | | | | This avoids deadlock in case a reset is triggered during self-test. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: I2C adapter initialisation fixesBen Hutchings2008-07-22
| | | | | | | | | | As recommended by Jean Delvare: - Increase timeout to 50 ms - Leave adapter class clear so that unwanted drivers do not probe our bus - Use strlcpy() for name initialisation Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* netdev: Do not use TX lock to protect address lists.David S. Miller2008-07-15
| | | | | | | | | Now that we have a specific lock to protect the network device unicast and multicast lists, remove extraneous grabs of the TX lock in cases where the code only needs address list protection. Signed-off-by: David S. Miller <davem@davemloft.net>
* netdev: Add netdev->addr_list_lock protection.David S. Miller2008-07-15
| | | | | | | | | | | | | Add netif_addr_{lock,unlock}{,_bh}() helpers. Use them to protect operations that operate on or read the network device unicast and multicast address lists. Also use them in cases where the code simply wants to block calls into the driver's ->set_rx_mode() and ->set_multicast_list() methods. Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2008-06-13
|\ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smc911x.c
| * sfc: Recover from RX queue flush failureSteve Hodgson2008-06-10
| | | | | | | | | | | | | | | | RX queue flush can fail if traffic continues to arrive. Recover by performing an invisible reset. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | Merge branch 'master' of ↵David S. Miller2008-06-10
|\| | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/tg3.c drivers/net/wireless/rt2x00/rt2x00dev.c net/mac80211/ieee80211_i.h
| * [netdrvr] sfc: Report XAUI link down at default log levelBen Hutchings2008-05-30
| | | | | | | | | | | | | | This is normal when the external link is down so don't report it as an error. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sfc: Reduce I2C udelay to 5 resulting in a clock frequency of 100 kHzBen Hutchings2008-05-30
| | | | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sfc: Use kernel I2C system and i2c-algo-bit driverBen Hutchings2008-05-30
|/ | | | | | | Remove our own implementation of I2C bit-banging. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Remove sub-minor component from driver versionBen Hutchings2008-05-22
| | | | | | | | | This driver has diverged from the out-of-tree driver to which the version number originally applied. It should be identified primarily by kernel version. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Added checks for heap allocation failureBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Remove redundant casts to and from void *Ben Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Change type of efx_nic::nic_data to struct falcon_nic_data *Ben Hutchings2008-05-22
| | | | | | | Remove redundant casts and variable. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use __packed macroBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Do not define inline macroBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use DMA_BIT_MASK() instead of our own DMA mask macrosBen Hutchings2008-05-22
| | | | | | | | Also change type of efx_nic_type::max_dma_mask to u64, matching pci_dma_supported() parameter type. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Correct and expand some commentsBen Hutchings2008-05-22
| | | | | | | | These comments have been revised in response to questions raised by Andrew Morton in <20080501120858.207b6dd6.akpm@linux-foundation.org>. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use resource_size_t for PCI bus addressBen Hutchings2008-05-22
| | | | | | | This should make the driver work on 32-bit systems with 64-bit PCI support. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Merged efx_page_offset() into efx_rx_buf_offset()Ben Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Replaced various macros with inline functionsBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Added and removed braces to comply with kernel styleBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Removed unncesssary UL suffixes on 0 literalsBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Simplified efx_rx_calc_buffer_size() using get_order()Ben Hutchings2008-05-22
| | | | | | | Merged it into its only caller, efx_init_channels(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Removed casts to voidBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sfc: Use mod_timer() to set expiry and add_timer() togetherBen Hutchings2008-05-22
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: sfc: Add self-test supportBen Hutchings2008-05-13
| | | | | | | | Add a set of self-tests accessible thorugh ethtool. Add hardware loopback and TX disable control code to support them. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Increment rx_reset when reported as driver eventBen Hutchings2008-05-13
| | | | | | | | An RX_RESET event can be reported either as a global or as a driver event. We were counting only global events. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Remove unused macro EFX_XAUI_RETRAIN_MAXBen Hutchings2008-05-13
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Fix code formattingBen Hutchings2008-05-13
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Remove kernel-doc comments for removed members of struct efx_nicBen Hutchings2008-05-13
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Remove garbage from commentBen Hutchings2008-05-13
| | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [netdrvr] sfc: Removed bogus 'fall-thru' commentsBen Hutchings2008-05-13
| | | | | | | Fall-through is expected outside a switch statement. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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