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path: root/drivers/net/ethernet/chelsio
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2020-06-19cxgb4: add action to steer flows to specific RxqVishal Kulkarni
Add support for queue action to steer Rx traffic hitting the flows to specified Rxq. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19cxgb4: add support to fetch ethtool n-tuple filtersVishal Kulkarni
Add support to fetch the requested ethtool n-tuple filters by translating them from hardware spec to ethtool n-tuple spec. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19cxgb4: add ethtool n-tuple filter deletionVishal Kulkarni
Add support to delete ethtool n-tuple filter. Fetch the appropriate filter region (HPFILTER, HASH, NORMAL) in which the filter exists, and delete it from the respective region, accordingly. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19cxgb4: add ethtool n-tuple filter insertionVishal Kulkarni
Add support to parse and insert ethtool n-tuple filters. Translate n-tuple spec to flow spec and use the existing tc-flower offload infra to insert ethtool n-tuple filters. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19cxgb4: add skeleton for ethtool n-tuple filtersVishal Kulkarni
Allocate and manage resources required for ethtool n-tuple filters. Also fetch the HASH filter region size and calculate nhash entries. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-19net: qos offload add flow status with dropped countPo Liu
This patch adds a drop frames counter to tc flower offloading. Reporting h/w dropped frames is necessary for some actions. Some actions like police action and the coming introduced stream gate action would produce dropped frames which is necessary for user. Status update shows how many filtered packets increasing and how many dropped in those packets. v2: Changes - Update commit comments suggest by Jiri Pirko. Signed-off-by: Po Liu <Po.Liu@nxp.com> Reviewed-by: Simon Horman <simon.horman@netronome.com> Reviewed-by: Vlad Buslov <vladbu@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18cxgb4: add support to read serial flashVishal Kulkarni
This patch adds support to dump flash memory via ethtool --get-dump Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18cxgb4: add support to flash boot cfg imageVishal Kulkarni
Update set_flash to flash boot cfg image to flash region Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18cxgb4: add support to flash boot imageVishal Kulkarni
Update set_flash to flash boot image to flash region Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18cxgb4: add support to flash PHY imageVishal Kulkarni
Update set_flash to flash PHY image to flash region Signed-off-by: Vishal Kulkarni <vishal@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-18cxgb4: update set_flash to flash different imagesVishal Kulkarni
Chelsio adapter contains different flash regions and each region is used by different binary files. This patch adds support to flash images like PHY firmware, boot and boot config using ethtool -f N. The N value mapping is as follows. N = 0 : Parse image and decide which region to flash N = 1 : Firmware N = 2 : PHY firmware N = 3 : boot image N = 4 : boot cfg Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>" Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-14treewide: replace '---help---' in Kconfig files with 'help'Masahiro Yamada
Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over '---help---'"), the number of '---help---' has been gradually decreasing, but there are still more than 2400 instances. This commit finishes the conversion. While I touched the lines, I also fixed the indentation. There are a variety of indentation styles found. a) 4 spaces + '---help---' b) 7 spaces + '---help---' c) 8 spaces + '---help---' d) 1 space + 1 tab + '---help---' e) 1 tab + '---help---' (correct indentation) f) 1 tab + 1 space + '---help---' g) 1 tab + 2 spaces + '---help---' In order to convert all of them to 1 tab + 'help', I ran the following commend: $ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/' Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2020-06-05cxgb4: Use kfree() instead kvfree() where appropriateDenis Efremov
Use kfree(buf) in blocked_fl_read() because the memory is allocated with kzalloc(). Use kfree(t) in blocked_fl_write() because the memory is allocated with kcalloc(). Signed-off-by: Denis Efremov <efremov@linux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-04crypto/chcr: error seen if CONFIG_CHELSIO_TLS_DEVICE isn't setRohit Maheshwari
cxgb4_uld_in_use() is used only by cxgb4_ktls_det_feature() which is under CONFIG_CHELSIO_TLS_DEVICE macro. Fixes: a3ac249a1ab5 ("cxgb4/chcr: Enable ktls settings at run time") Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01cxgb4/chcr: Enable ktls settings at run timeRohit Maheshwari
Current design enables ktls setting from start, which is not efficient. Now the feature will be enabled when user demands TLS offload on any interface. v1->v2: - taking ULD module refcount till any single connection exists. - taking rtnl_lock() before clearing tls_devops. v2->v3: - cxgb4 is now registering to tlsdev_ops. - module refcount inc/dec in chcr. - refcount is only for connections. - removed new code from cxgb_set_feature(). v3->v4: - fixed warning message. Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-01cxgb4: cleanup error code in setup_sge_queues_uld()Dan Carpenter
The caller doesn't care about the error codes, they only check for zero vs non-zero. Still, it's better to preserve the negative error codes from alloc_uld_rxqs() instead of changing it to 1. We can also return directly if there is a failure. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-22cxgb4: add adapter hotplug support for ULDsPotnuri Bharat Teja
Upon adapter hotplug, cxgb4 registers ULD devices for all the ULDs that are already loaded, ensuring that ULD's can enumerate the hotplugged adapter without reloading the ULD. Signed-off-by: Potnuri Bharat Teja <bharat@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-18cxgb4: Use %pM format specifier for MAC addressesAndy Shevchenko
Convert to %pM instead of using custom code. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15cxgb4: add EOTID tracking and software context dumpRahul Lakkireddy
Rework and add support for dumping EOTID software context used by TC-MQPRIO. Also track number of EOTIDs in use. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15cxgb4: tune burst buffer size for TC-MQPRIO offloadRahul Lakkireddy
For each traffic class, firmware handles up to 4 * MTU amount of data per burst cycle. Under heavy load, this small buffer size is a bottleneck when buffering large TSO packets in <= 1500 MTU case. Increase the burst buffer size to 8 * MTU when supported. Also, keep the driver's traffic class configuration API similar to the firmware API counterpart. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-15cxgb4: improve credits recovery in TC-MQPRIO Tx pathRahul Lakkireddy
Request credit update for every half credits consumed, including the current request. Also, avoid re-trying to post packets when there are no credits left. The credit update reply via interrupt will eventually restore the credits and will invoke the Tx path again. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-07cxgb4: remove duplicate headersChen Zhou
Remove duplicate headers which are included twice. Signed-off-by: Chen Zhou <chenzhou10@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Conflicts were all overlapping changes. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-05cxgb4/cxgb4vf: Remove superfluous void * cast in debugfs_create_file() callGeert Uytterhoeven
There is no need to cast a typed pointer to a void pointer when calling a function that accepts the latter. Remove it, as the cast prevents further compiler checks. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01cxgb4: Add missing annotation for service_ofldq()Jules Irenge
Sparse reports a warning at service_ofldq() warning: context imbalance in service_ofldq() - unexpected unlock The root cause is the missing annotation at service_ofldq() Add the missing __must_hold(&q->sendq.lock) annotation Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-01docs: networking: device drivers: convert chelsio/cxgb.txt to ReSTMauro Carvalho Chehab
- add SPDX header; - use copyright symbol; - adjust titles and chapters, adding proper markups; - comment out text-only TOC from html/pdf output; - mark code blocks and literals as such; - add notes markups; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines where needed; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-30cxgb4: fix EOTID leak when disabling TC-MQPRIO offloadRahul Lakkireddy
Under heavy load, the EOTID termination FLOWC request fails to get enqueued to the end of the Tx ring due to lack of credits. This results in EOTID leak. When disabling TC-MQPRIO offload, the link is already brought down to cleanup EOTIDs. So, flush any pending enqueued skbs that can't be sent outside the wire, to make room for FLOWC request. Also, move the FLOWC descriptor consumption logic closer to when the FLOWC request is actually posted to hardware. Fixes: 0e395b3cb1fb ("cxgb4: add FLOWC based QoS offload") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-23cxgb4: fix adapter crash due to wrong MC sizeVishal Kulkarni
In the absence of MC1, the size calculation function cudbg_mem_region_size() was returing wrong MC size and resulted in adapter crash. This patch adds new argument to cudbg_mem_region_size() which will have actual size and returns error to caller in the absence of MC1. Fixes: a1c69520f785 ("cxgb4: collect MC memory dump") Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>" Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-20cxgb4: fix large delays in PTP synchronizationRahul Lakkireddy
Fetching PTP sync information from mailbox is slow and can take up to 10 milliseconds. Reduce this unnecessary delay by directly reading the information from the corresponding registers. Fixes: 9c33e4208bce ("cxgb4: Add PTP Hardware Clock (PHC) support") Signed-off-by: Manoj Malviya <manojmalviya@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-14net/cxgb4: Check the return from t4_query_params properlyJason Gunthorpe
Positive return values are also failures that don't set val, although this probably can't happen. Fixes gcc 10 warning: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c: In function ‘t4_phy_fw_ver’: drivers/net/ethernet/chelsio/cxgb4/t4_hw.c:3747:14: warning: ‘val’ may be used uninitialized in this function [-Wmaybe-uninitialized] 3747 | *phy_fw_ver = val; Fixes: 01b6961410b7 ("cxgb4: Add PHY firmware support for T420-BT cards") Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01cxgb4: free MQPRIO resources in shutdown pathRahul Lakkireddy
Perform missing MQPRIO resource cleanup in PCI shutdown path. Also, fix MQPRIO MSIX bitmap leak in resource cleanup. Fixes: b1396c2bd675 ("cxgb4: parse and configure TC-MQPRIO offload") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-01cxgb4: fix MPS index overwrite when setting MAC addressHerat Ramani
cxgb4_update_mac_filt() earlier requests firmware to add a new MAC address into MPS TCAM. The MPS TCAM index returned by firmware is stored in pi->xact_addr_filt. However, the saved MPS TCAM index gets overwritten again with the return value of cxgb4_update_mac_filt(), which is wrong. When trying to update to another MAC address later, the wrong MPS TCAM index is sent to firmware, which causes firmware to return error, because it's not the same MPS TCAM index that firmware had sent earlier to driver. So, fix by removing the wrong overwrite being done after call to cxgb4_update_mac_filt(). Fixes: 3f8cfd0d95e6 ("cxgb4/cxgb4vf: Program hash region for {t4/t4vf}_change_mac()") Signed-off-by: Herat Ramani <herat@chelsio.com> Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-31cxgb4/chcr: nic-tls stats in ethtoolRohit Maheshwari
Included nic tls statistics in ethtool stats. Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-30net: sched: expose HW stats types per action used by driversJiri Pirko
It may be up to the driver (in case ANY HW stats is passed) to select which type of HW stats he is going to use. Add an infrastructure to expose this information to user. $ tc filter add dev enp3s0np1 ingress proto ip handle 1 pref 1 flower dst_ip 192.168.1.1 action drop $ tc -s filter show dev enp3s0np1 ingress filter protocol ip pref 1 flower chain 0 filter protocol ip pref 1 flower chain 0 handle 0x1 eth_type ipv4 dst_ip 192.168.1.1 in_hw in_hw_count 2 action order 1: gact action drop random type none pass val 0 index 1 ref 1 bind 1 installed 10 sec used 10 sec Action statistics: Sent 0 bytes 0 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 used_hw_stats immediate <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<< Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Overlapping header include additions in macsec.c A bug fix in 'net' overlapping with the removal of 'version' string in ena_netdev.c Overlapping test additions in selftests Makefile Overlapping PCI ID table adjustments in iwlwifi driver. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25cxgb4: Add support to catch bits set in INT_CAUSE5Rahul Kundu
This commit adds support to catch any bits set in SGE_INT_CAUSE5 for Parity Errors. F_ERR_T_RXCRC flag is used to ignore that particular bit as it is not considered as fatal. So, we clear out the bit before looking for error. This patch now read and report separately all three registers(Cause1, Cause2, Cause5). Also, checks for errors if any. Signed-off-by: Raju Rangoju <rajur@chelsio.com> Signed-off-by: Rahul Kundu <rahul.kundu@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-25cxgb4: remove set but not used variable 'tab'YueHaibing
drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c: In function cxgb4_get_free_ftid: drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c:547:23: warning: variable tab set but not used [-Wunused-but-set-variable] commit 8d174351f285 ("cxgb4: rework TC filter rule insertion across regions") involved this, remove it. Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-24cxgb4/ptp: pass the sign of offset delta in FW CMDRaju Rangoju
cxgb4_ptp_fineadjtime() doesn't pass the signedness of offset delta in FW_PTP_CMD. Fix it by passing correct sign. Signed-off-by: Raju Rangoju <rajur@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19cxgb4: fix Txq restart check during backpressureRahul Lakkireddy
Driver reclaims descriptors in much smaller batches, even if hardware indicates more to reclaim, during backpressure. So, fix the check to restart the Txq during backpressure, by looking at how many descriptors hardware had indicated to reclaim, and not on how many descriptors that driver had actually reclaimed. Once the Txq is restarted, driver will reclaim even more descriptors when Tx path is entered again. Fixes: d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-19cxgb4: fix throughput drop during Tx backpressureRahul Lakkireddy
commit 7c3bebc3d868 ("cxgb4: request the TX CIDX updates to status page") reverted back to getting Tx CIDX updates via DMA, instead of interrupts, introduced by commit d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer") However, it missed reverting back several code changes where Tx CIDX updates are not explicitly requested during backpressure when using interrupt mode. These missed changes cause slow recovery during backpressure because the corresponding interrupt no longer comes and hence results in Tx throughput drop. So, revert back these missed code changes, as well, which will allow explicitly requesting Tx CIDX updates when backpressure happens. This enables the corresponding interrupt with Tx CIDX update message to get generated and hence speed up recovery and restore back throughput. Fixes: 7c3bebc3d868 ("cxgb4: request the TX CIDX updates to status page") Fixes: d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer") Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-18cxgb4: rework TC filter rule insertion across regionsRahul Lakkireddy
Chelsio NICs have 3 filter regions, in following order of priority: 1. High Priority (HPFILTER) region (Highest Priority). 2. HASH region. 3. Normal FILTER region (Lowest Priority). Currently, there's a 1-to-1 mapping between the prio value passed by TC and the filter region index. However, it's possible to have multiple TC rules with the same prio value. In this case, if a region is exhausted, no attempt is made to try inserting the rule in the next available region. So, rework and remove the 1-to-1 mapping. Instead, dynamically select the region to insert the filter rule, as long as the new rule's prio value doesn't conflict with existing rules across all the 3 regions. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-17net: rename flow_action_hw_stats_types* -> flow_action_hw_stats*Jakub Kicinski
flow_action_hw_stats_types_check() helper takes one of the FLOW_ACTION_HW_STATS_*_BIT values as input. If we align the arguments to the opening bracket of the helper there is no way to call this helper and stay under 80 characters. Remove the "types" part from the new flow_action helpers and enum values. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-15cxgb4: fix delete filter entry fail in unload pathShahjada Abul Husain
Currently, the hardware TID index is assumed to start from index 0. However, with the following changeset, commit c21939998802 ("cxgb4: add support for high priority filters") hardware TID index can start after the high priority region, which has introduced a regression resulting in remove filters entry failure for cxgb4 unload path. This patch fix that. Fixes: c21939998802 ("cxgb4: add support for high priority filters") Signed-off-by: Shahjada Abul Husain <shahjada@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-14cxgb4: update T5/T6 adapter register rangesShahjada Abul Husain
Add more T5/T6 registers to be collected in register dump: 1. MPS register range 0x9810 to 0x9864 and 0xd000 to 0xd004. 2. NCSI register range 0x1a114 to 0x1a130 and 0x1a138 to 0x1a1c4. Signed-off-by: Shahjada Abul Husain <shahjada@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netDavid S. Miller
Minor overlapping changes, nothing serious. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10net: cxgb4vf: reject unsupported coalescing paramsJakub Kicinski
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10net: cxgb4: reject unsupported coalescing paramsJakub Kicinski
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10net: cxgb3: reject unsupported coalescing paramsJakub Kicinski
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-10net: cxgb2: reject unsupported coalescing paramsJakub Kicinski
Set ethtool_ops->supported_coalesce_params to let the core reject unsupported coalescing parameters. This driver did not previously reject unsupported parameters. Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-08cxgb4/chcr: Add ipv6 support and statisticsRohit Maheshwari
Adding ipv6 support and ktls related statistics. v1->v2: - added blank lines at 2 places. v3->v4: - Replaced atomic_t with atomic64_t - added few necessary stat counters. Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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