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2011-08-11sfc: Move the Solarflare driversJeff Kirsher37-25571/+0
Moves the Solarflare drivers into drivers/net/ethernet/sfc/ and make the necessary Kconfig and Makefile changes. CC: Steve Hodgson <shodgson@solarflare.com> CC: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2011-07-14Merge branch 'master' of ↵David S. Miller8-99/+152
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next
2011-07-14sfc: Remove 'Communications' after 'Solarflare' in references to hardwareBen Hutchings2-3/+2
Branding can now be abbreviated. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-07-13sfc: Remove 'Solarstorm' from Kconfig descriptionsBen Hutchings1-4/+4
The 'Solarstorm' brand is being retired and it's redundant with the company name. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-25sfc: Fix assertions in efx_filter_rfs()Ben Hutchings1-2/+2
This function is intended to assert (when DEBUG is defined) that the skb header area includes the header fields it's looking at, which RFS should already have pulled. But it uses pskb_may_pull(), which will attempt to pull more data if necesary. It must instead compare skb_headlen() with the required length. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-25sfc: Fix Siena mac statistics on big endian platformsSteve Hodgson1-7/+7
[bwh: Use __force in the one place it's needed] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-25sfc: Fix mapping of reset reasons and flags to methodsBen Hutchings5-43/+93
There are certain hardware bugs that may occur on Falcon during normal operation, that require a reset to recover from. We try to minimise disruption by keeping the PHY running, following a reset sequence labelled as 'invisible'. Siena does not suffer from these hardware bugs, so we have not implemented an 'invisible' reset sequence. However, if a similar error does occur (due to a hardware fault or software bug) then the code shared with Falcon will wrongly assume that the PHY is not being reset. Since the mapping of reset reasons (internal) and flags (ethtool) to methods must differ significantly between NIC types, move it into per-NIC-type functions (replacing the insufficient reset_world_flags field). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-25sfc: Allow resets to be upgraded; use atomic ops for safetyBen Hutchings4-25/+22
Currently an attempt to schedule any reset is ignored if a reset is already pending. This ignores the relative scopes - if the requested reset is greater in scope then the scheduled reset should be upgraded accordingly. There are also some race conditions which could lead to a reset request being lost. Deal with them by using atomic operations on a bitmask. This also makes tests on reset_pending easier to get right. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-25sfc: Fix loop condition for efx_filter_search() when !for_insertBen Hutchings1-17/+24
efx_filter_remove_filter() fails to remove inserted filters in some cases. For example: 1. Two filters A and B have specifications that result in an initial hash collision. 2. A is inserted first, followed by B. 3. An attempt to remove B first succeeds, but if A is removed first a subsequent attempt to remove B fails. When searching for an existing filter (!for_insert), efx_filter_search() must always continue to the maximum search depth for the given type rather than stopping at the first unused entry. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-06-24net: Remove unneeded version.h includes from drivers/net/Jesper Juhl1-1/+0
It was pointed out by 'make versioncheck' that some includes of linux/version.h are not needed in drivers/net/. This patch removes them. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21ip: introduce ip_is_fragment helper inline functionPaul Gortmaker1-1/+1
There are enough instances of this: iph->frag_off & htons(IP_MF | IP_OFFSET) that a helper function is probably warranted. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-21drivers/net: Remove casts of void *Joe Perches1-1/+1
Unnecessary casts of void * clutter the code. These are the remainder casts after several specific patches to remove netdev_priv and dev_priv. Done via coccinelle script (and a little editing): $ cat cast_void_pointer.cocci @@ type T; T *pt; void *pv; @@ - pt = (T *)pv; + pt = pv; Signed-off-by: Joe Perches <joe@perches.com> Acked-by: Sjur Brændeland <sjur.brandeland@stericsson.com> Acked-By: Chris Snook <chris.snook@gmail.com> Acked-by: Jon Mason <jdmason@kudzu.us> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: David Dillow <dave@thedillows.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-06-06net: remove interrupt.h inclusion from netdevice.hAlexey Dobriyan1-0/+1
* remove interrupt.g inclusion from netdevice.h -- not needed * fixup fallout, add interrupt.h and hardirq.h back where needed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-27Merge git://git.infradead.org/mtd-2.6Linus Torvalds1-3/+3
* git://git.infradead.org/mtd-2.6: (97 commits) mtd: kill CONFIG_MTD_PARTITIONS mtd: remove add_mtd_partitions, add_mtd_device and friends mtd: convert remaining users to mtd_device_register() mtd: samsung onenand: convert to mtd_device_register() mtd: omap2 onenand: convert to mtd_device_register() mtd: txx9ndfmc: convert to mtd_device_register() mtd: tmio_nand: convert to mtd_device_register() mtd: socrates_nand: convert to mtd_device_register() mtd: sharpsl: convert to mtd_device_register() mtd: s3c2410 nand: convert to mtd_device_register() mtd: ppchameleonevb: convert to mtd_device_register() mtd: orion_nand: convert to mtd_device_register() mtd: omap2: convert to mtd_device_register() mtd: nomadik_nand: convert to mtd_device_register() mtd: ndfc: convert to mtd_device_register() mtd: mxc_nand: convert to mtd_device_register() mtd: mpc5121_nfc: convert to mtd_device_register() mtd: jz4740_nand: convert to mtd_device_register() mtd: h1910: convert to mtd_device_register() mtd: fsmc_nand: convert to mtd_device_register() ... Fixed up trivial conflicts in - drivers/mtd/maps/integrator-flash.c: removed in ARM tree - drivers/mtd/maps/physmap.c: addition of afs partition probe type clashing with removal of CONFIG_MTD_PARTITIONS
2011-05-25mtd: convert remaining users to mtd_device_register()Jamie Iles1-3/+3
The older add_mtd_device()/add_mtd_partitions() and their removal counterparts will soon be gone. Replace uses with mtd_device_register() and mtd_device_unregister(). Signed-off-by: Jamie Iles <jamie@jamieiles.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-05-22Add appropriate <linux/prefetch.h> include for prefetch usersPaul Gortmaker1-0/+1
After discovering that wide use of prefetch on modern CPUs could be a net loss instead of a win, net drivers which were relying on the implicit inclusion of prefetch.h via the list headers showed up in the resulting cleanup fallout. Give them an explicit include via the following $0.02 script. ========================================= #!/bin/bash MANUAL="" for i in `git grep -l 'prefetch(.*)' .` ; do grep -q '<linux/prefetch.h>' $i if [ $? = 0 ] ; then continue fi ( echo '?^#include <linux/?a' echo '#include <linux/prefetch.h>' echo . echo w echo q ) | ed -s $i > /dev/null 2>&1 if [ $? != 0 ]; then echo $i needs manual fixup MANUAL="$i $MANUAL" fi done echo ------------------- 8\<---------------------- echo vi $MANUAL ========================================= Signed-off-by: Paul <paul.gortmaker@windriver.com> [ Fixed up some incorrect #include placements, and added some non-network drivers and the fib_trie.c case - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-05-17sfc: Don't use enums as a bitmask.David S. Miller6-12/+10
This fixes: drivers/net/sfc/mcdi_mac.c: In function ‘efx_mcdi_set_mac’: drivers/net/sfc/mcdi_mac.c:36:2: warning: case value ‘3’ not in enumerated type ‘enum efx_fc_type’ Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-17Merge branch 'master' of ↵David S. Miller4-23/+60
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/vmxnet3/vmxnet3_ethtool.c net/core/dev.c
2011-05-16sfc: Use netif_device_{detach,attach}() around reset and self-testBen Hutchings4-19/+14
We need to keep the TX queues stopped throughout a reset, without triggering the TX watchdog and regardless of the link state. The proper way to do this is to use netif_device_{detach,attach}() just as we do around suspend/resume, rather than the current bodge of faking link-down. Since we also need to do this during an offline self-test and we perform a reset during that, add these function calls outside of efx_reset_down() and efx_reset_up(). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-05-16sfc: Fix oops in register dump after mapping changeBen Hutchings1-0/+7
Commit 747df2258b1b9a2e25929ef496262c339c380009 ('sfc: Always map MCDI shared memory as uncacheable') introduced a separate mapping for the MCDI shared memory (MC_TREG_SMEM). This means we can no longer easily include it in the register dump. Since it is not particularly useful in debugging, substitute a recognisable dummy value. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-16sfc: Fix TX queue numbering when separate_tx_channels=1Ben Hutchings1-0/+12
This option appears to have been broken by commit 8313aca38b3937947fffebca6e34bac8e24300c8 ('sfc: Allocate each channel separately, along with its RX and TX queues'). Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-05-14sfc: Fix return value from efx_ethtool_set_rx_ntuple()Ben Hutchings1-2/+3
ethtool_ops::set_rx_ntuple is supposed to return 0 on success, but it currently returns the filter ID when it inserts or modifies a filter. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-05-12sfc: Always map MCDI shared memory as uncacheableBen Hutchings3-23/+53
We enabled write-combining for memory-mapped registers in commit 65f0b417dee94f779ce9b77102b7d73c93723b39, but inhibited it for the MCDI shared memory where this is not supported. However, write-combining mappings also allow read-reordering, which may also be a problem. I found that when an SFC9000-family controller is connected to an Intel 3000 chipset, and write-combining is enabled, the controller stops responding to PCIe read requests during driver initialisation while the driver is polling for completion of an MCDI command. This results in an NMI and system hang. Adding read memory barriers between all reads to the shared memory area appears to reduce but not eliminate the probability of this. We have not yet established whether this is a bug in our BIU or in the PCIe bridge. For now, work around by mapping the shared memory area separately. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-29ethtool: cosmetic: Use ethtool ethtool_cmd_speed APIDavid Decotigny3-3/+3
This updates the network drivers so that they don't access the ethtool_cmd::speed field directly, but use ethtool_cmd_speed() instead. For most of the drivers, these changes are purely cosmetic and don't fix any problem, such as for those 1GbE/10GbE drivers that indirectly call their own ethtool get_settings()/mii_ethtool_gset(). The changes are meant to enforce code consistency and provide robustness with future larger throughputs, at the expense of a few CPU cycles for each ethtool operation. All drivers compiled with make allyesconfig ion x86_64 have been updated. Tested: make allyesconfig on x86_64 + e1000e/bnx2x work Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Use full 32 bit speed range in ethtool's set_settingsDavid Decotigny2-3/+4
This makes sure the ethtool's set_settings() callback of network drivers don't ignore the 16 most significant bits when ethtool calls their set_settings(). All drivers compiled with make allyesconfig on x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-29ethtool: Call ethtool's get/set_settings callbacks with cleaned dataDavid Decotigny1-2/+2
This makes sure that when a driver calls the ethtool's get/set_settings() callback of another driver, the data passed to it is clean. This guarantees that speed_hi will be zeroed correctly if the called callback doesn't explicitely set it: we are sure we don't get a corrupted speed from the underlying driver. We also take care of setting the cmd field appropriately (ETHTOOL_GSET/SSET). This applies to dev_ethtool_get_settings(), which now makes sure it sets up that ethtool command parameter correctly before passing it to drivers. This also means that whoever calls dev_ethtool_get_settings() does not have to clean the ethtool command parameter. This function also becomes an exported symbol instead of an inline. All drivers visible to make allyesconfig under x86_64 have been updated. Signed-off-by: David Decotigny <decot@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-19Merge branch 'master' of ↵David S. Miller7-31/+30
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x_ethtool.c
2011-04-14sfc: make function tables conststephen hemminger13-24/+24
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>
2011-04-14ethtool: allow custom interval for physical identificationAllan, Bruce W1-3/+3
When physical identification of an adapter is done by toggling the mechanism on and off through software utilizing the set_phys_id operation, it is done with a fixed duration for both on and off states. Some drivers may want to set a custom duration for the on/off intervals. This patch changes the API so the return code from the driver's entry point when it is called with ETHTOOL_ID_ACTIVE can specify the frequency at which to cycle the on/off states, and updates the drivers that have already been converted to use the new set_phys_id and use the synchronous method for identifying an adapter. The physical identification frequency set in the updated drivers is based on how it was done prior to the introduction of set_phys_id. Compile tested only. Also fixes a compiler warning in sfc. v2: drivers do not return -EINVAL for ETHOOL_ID_ACTIVE v3: fold patchset into single patch and cleanup per Ben's feedback Signed-off-by: Bruce Allan <bruce.w.allan@intel.com> Cc: Ben Hutchings <bhutchings@solarflare.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com> Cc: Ajit Khaparde <ajit.khaparde@emulex.com> Cc: Michael Chan <mchan@broadcom.com> Cc: Eilon Greenstein <eilong@broadcom.com> Cc: Divy Le Ray <divy@chelsio.com> Cc: Don Fry <pcnet32@frontier.com> Cc: Jon Mason <jdmason@kudzu.us> Cc: Solarflare linux maintainers <linux-net-drivers@solarflare.com> Cc: Steve Hodgson <shodgson@solarflare.com> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Cc: Matt Carlson <mcarlson@broadcom.com> Acked-by: Jon Mason <jdmason@kudzu.us> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-04-12sfc: Use rmb() to ensure reads occur in orderNeil Turton1-0/+2
Enabling write-combining may also enable read reordering. The BIU is only guaranteed to read from a 128-bit CSR or 64-bit SRAM word when the host reads from its lowest address; otherwise the BIU may use the latched value. Therefore we need to reinstate the read memory barriers after the first read operation for each CSR or SRAM word. Signed-off-by; Ben Hutchings <bhutchings@solarflare.com>
2011-04-12sfc: Do not use efx_process_channel_now() in online self-testBen Hutchings5-29/+23
During self-tests we use efx_process_channel_now() to handle completion and other events synchronously. This disables interrupts and NAPI processing for the channel in question, but it may still be interrupted by another channel. A single socket may receive packets from multiple net devices or even multiple channels of the same net device, so this can result in deadlock on a socket lock. Receiving packets in process context will also result in incorrect classification by the network cgroup classifier. Therefore, we must only use efx_process_channel_now() in the offline loopback tests (which never deliver packets up the stack) and not for the online interrupt and event tests. For the interrupt test, there is no reason to process events. We only care that an interrupt is raised. For the event test, we want to know whether events have been received, and there may be many events ahead of the one we inject. Therefore remove efx_channel::magic_count and instead test whether efx_channel::eventq_read_ptr advances. This is currently an event queue index and might wrap around to exactly the same value, resulting in a false negative. Therefore move the masking to efx_event() and efx_nic_eventq_read_ack() so that it cannot wrap within the time of the test. The event test also tries to diagnose failures by checking whether an event was delivered without causing an interrupt. Add and use a helper function that only does this. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-12sfc: Stop the TX queues during loopback self-testsNeil Turton3-2/+5
If the TX queues are running during loopback self tests, host traffic gets looped back which causes the test to fail. Avoid restarting the TX queues after the port reset so that any packets sent by the host get held back until after the tests have completed. [bwh: Also wake all TX queues at the end of self-tests.] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-11Merge branch 'master' of ↵David S. Miller5-8/+8
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/smsc911x.c
2011-04-05sfc: Implement ethtool_ops::set_phys_id instead of ethtool_ops::phys_idBen Hutchings1-10/+18
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-05sfc: Implement generic features interfaceBen Hutchings4-84/+18
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-05sfc: Enable all TSO features on VLANsBen Hutchings1-1/+1
The TSO code already supports IPv6 on VLAN, so enable it. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-04-01sfc: Move test of rx_checksum_enabled from nic.c to rx.cBen Hutchings2-4/+5
This is preparation for using the generic netdev features interface, and should have no effect in itself. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-03-31Fix common misspellingsLucas De Marchi5-8/+8
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-23sfc: Siena: Disable write-combining when SR-IOV is enabledSteve Hodgson2-2/+18
If SR-IOV is enabled by firmware, even if it is not enabled in the PCI capability, TX pushes using write-combining may be corrupted. We want to know whether it is enabled before mapping the NIC registers, and even if PCI extended capabilities are not accessible. Therefore, we look for the MSI capability, which is removed if SR-IOV is enabled. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-03-08Merge branch 'for-davem' of ↵David S. Miller3-10/+16
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next-2.6
2011-03-04sfc: Use write-combining to reduce TX latencyBen Hutchings3-10/+16
Based on work by Neil Turton <nturton@solarflare.com> and Kieran Mansley <kmansley@solarflare.com>. The BIU has now been verified to handle 3- and 4-dword writes within a single 128-bit register correctly. This means we can enable write- combining and only insert write barriers between writes to distinct registers. This has been observed to save about 0.5 us when pushing a TX descriptor to an empty TX queue. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-03-03Merge branch 'master' of ↵David S. Miller1-9/+13
master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/bnx2x/bnx2x.h
2011-02-28sfc: Bump version to 3.1Ben Hutchings1-1/+1
All features originally planned for version 3.1 (and some that weren't) have been implemented. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Remove configurable FIFO thresholds for pause frame generationBen Hutchings4-41/+5
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>
2011-02-28sfc: Expose TX push and TSO counters through ethtool statisticsBen Hutchings1-1/+20
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Update copyright datesBen Hutchings30-30/+30
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Do not read STAT1.FAULT in efx_mdio_check_mmd()Ben Hutchings4-31/+8
This field does not exist in all MMDs we want to check, and all callers allow it to be set (fault_fatal = 0). Remove the loopback condition, as STAT2.DEVPRST should be valid regardless of any fault. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Read MC firmware version when requested through ethtoolBen Hutchings5-41/+9
We currently make no use of siena_nic_data::fw_{version,build} except to format the firmware version for ethtool_get_drvinfo(). Since we only read the version at start of day, this information is incorrect after an MC firmware update. Remove the cached version information and read it via MCDI whenever it is requested. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Reduce size of efx_rx_buffer further by removing data memberSteve Hodgson2-24/+28
Instead calculate the KVA of receive data. It's not like it's a hard sum. [bwh: Fixed to work with GRO.] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
2011-02-28sfc: Reduce size of efx_rx_buffer by unionising skb and pageSteve Hodgson2-53/+51
[bwh: Forward-ported to net-next-2.6.] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-24 01:11:26 +0000