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2020-04-30net/mlx5e: Fetch WQE: reuse code and enforce typingMaxim Mikityanskiy8-40/+38
There are multiple functions mlx5{e,i}_*_fetch_wqe that contain the same code, that is repeated, because they operate on different SQ struct types. mlx5e_sq_fetch_wqe also returns void *, instead of the concrete WQE type. This commit generalizes the fetch WQE operation by putting this code into a single function. To simplify calls of the generic function in concrete use cases, macros are provided that substitute the right WQE size and cast the return type. Before this patch, fetch_wqe used to calculate pi itself, but the value was often known to the caller. This calculation is moved outside to eliminate this unnecessary step and prepare for the fill_frag_edge refactoring in the next patch. Signed-off-by: Maxim Mikityanskiy <maximmi@mellanox.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: XDP, Print the offending TX descriptor on error completionTariq Toukan1-4/+3
Upon an error completion on an XDP SQ, print the offending WQE to ease the debug process. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Aya Levin <ayal@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: TX, Generalise code and usage of error CQE dumpTariq Toukan4-22/+27
Error CQE was dumped only for TXQ SQs. Generalise the function, and add usage for error completions on ICO SQs and XDP SQs. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Aya Levin <ayal@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: Use proper name field for the UMR keyTariq Toukan1-1/+1
Even though some of the WQE control segment's field share the same memory bits (a union of fields), prefer having the right field name for every different usage. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Add support for release all pages eventEran Ben Elisha2-3/+41
If FW sets release_all_pages bit in MLX5_EVENT_TYPE_PAGE_REQUEST, driver shall release all pages of a given function id, with no further pages reclaim negotiation with FW nor MANAGE_PAGES commands from driver towards FW. Upon receiving this bit as part of pages reclaim event, driver will initiate release all flow, in which it will iterate and release all function's pages. As part of driver <-> FW capabilities handshake, FW will report release_all_pages max HCA cap bit, and driver will set the release_all_pages bit in HCA cap. NIC: ConnectX-4 Lx CPU: Intel(R) Xeon(R) CPU E5-2650 v2 @ 2.60GHz Test case: Simulataniously FLR 4 VFs, and measure FW release pages by driver. Before: 3.18 Sec After: 0.31 Sec Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Rate limit page not found error messagesEran Ben Elisha1-1/+1
Thousands of pages are released with free_addr() function. In case of buggy sync between FW and driver on released address, the log will be flooded with error messages. Use mlx5_core_warn_rl() to limit it. Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Add helper function to release fw pageEran Ben Elisha1-13/+17
Factor out the fwp address release page to an helper function, will be used in the downstream patch. Signed-off-by: Eran Ben Elisha <eranbe@mellanox.com> Reviewed-by: Moshe Shemesh <moshe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: Remove unused field in EQTariq Toukan1-1/+0
The size field in EQ is not in use. Remove it. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Tal Gilboa <talgi@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: CT: Remove unused variablesPaul Blakey1-3/+0
Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: CT: Avoid false warning about rule may be used uninitializedRoi Dayan1-1/+1
Avoid gcc warning by preset rule to invalid ptr. Fixes: 4c3844d9e97e ("net/mlx5e: CT: Introduce connection tracking") Signed-off-by: Roi Dayan <roid@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: Remove unneeded semicolonZheng Bin1-1/+1
Fixes coccicheck warning: drivers/net/ethernet/mellanox/mlx5/core/en/tc_ct.c:690:2-3: Unneeded semicolon Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zheng Bin <zhengbin13@huawei.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5e: Use helper API to get devlink port index for all port flavoursParav Pandit1-8/+4
Use existing helper API to get unique devlink port index for all devlink port flavours. Reviewed-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30net/mlx5: IPsec, Fix coverity issueRaed Salem1-2/+2
The cited commit introduced the following coverity issue at functions mlx5_fpga_is_ipsec_device() and mlx5_fpga_ipsec_release_sa_ctx(): - bit_and_with_zero: accel_xfrm->attrs.action & MLX5_ACCEL_ESP_ACTION_DECRYPT is always 0. As MLX5_ACCEL_ESP_ACTION_DECRYPT is not a bitwise flag and was wrongly used with bitwise operation, the above expression is always zero value as MLX5_ACCEL_ESP_ACTION_DECRYPT is zero. Fix by using "==" comparison operator instead. Fixes: 7dfee4b1d79e ("net/mlx5: IPsec, Refactor SA handle creation and destruction") Signed-off-by: Raed Salem <raeds@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30Merge branch 'mlx5-next' of ↵Saeed Mahameed72-1393/+1144
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux mlx5 updates for both net-next and rdma-next: 1) HW bits and definitions for TLS and IPsec offlaods 2) Release all pages capability bits 3) New command interface helpers and some code cleanup as a result 4) Move qp.c out of mlx5 core driver into mlx5_ib rdma driver Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2020-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller7-42/+129
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for nf-next: 1) Add IPS_HW_OFFLOAD status bit, from Bodong Wang. 2) Remove 128-bit limit on the set element data area, rise it to 64 bytes. 3) Report EOPNOTSUPP for unsupported NAT types and flags. 4) Set up nft_nat flags from the control plane path. 5) Add helper functions to set up the nf_nat_range2 structure. 6) Add netmap support for nft_nat. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29Merge branch 'net-smc-preparations-for-SMC-R-link-failover'David S. Miller16-702/+1063
Karsten Graul says: ==================== net/smc: preparations for SMC-R link failover This patch series prepares the SMC code for the implementation of SMC-R link failover capabilities which are still missing to reach full compliance with RFC 7609. The code changes are separated into 65 patches which together form the new functionality. I tried to create meaningful patches which allow to follow the implementation. Question: how to handle the remaining 52 patches? All of them are needed for link failover to work and should make it into the same merge window. Can I send them all together? The SMC-R implementation will transparently make use of the link failover feature when matching RoCE devices are available, no special setup is required. All RoCE devices with the same PNET ID as the TCP device (hardware-defined or user-defined via the smc_pnet tool) are candidates to get used to form a link in a link group. When at least 2 RoCE devices are available on both communication endpoints then a symmetric link group is formed, meaning the link group has 2 independent links. If one RoCE device goes down then all connections on this link are moved to the surviving link. Upon recovery of the failing device or availability of a new one, the symmetric link group will be restored. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: move llc layer related init and clear into smc_llc.cKarsten Graul5-14/+31
Introduce smc_llc_lgr_init() and smc_llc_lgr_clear() to implement all llc layer specific initialization and cleanup in module smc_llc.c. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: use mutex instead of rwlock_t to protect buffersKarsten Graul2-13/+13
The locks for sndbufs and rmbs are never used from atomic context. Using a mutex for these locks will allow to nest locks with other mutexes. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: process llc responses in tasklet contextKarsten Graul2-108/+116
When llc responses are received then possible waiters for this response are to be notified. This can be done in tasklet context, without to use a work in the llc work queue. Move all code that handles llc responses into smc_llc_rx_response(). Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: use worker to process incoming llc messagesKarsten Graul4-58/+96
Incoming llc messages are processed in irq tasklet context, and a worker is used to send outgoing messages. The worker is needed because getting a send buffer could result in a wait for a free buffer. To make sure all incoming llc messages are processed in a serialized way introduce an event queue and create a new queue entry for each message which is queued to this event queue. A new worker processes the event queue entries in order. And remove the use of a separate worker to send outgoing llc messages because the messages are processed in worker context already. With this event queue the serialized llc_wq work queue is obsolete, remove it. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: simplify link deactivationKarsten Graul3-18/+6
Cancel the testlink worker during link clear processing and remove the extra function smc_llc_link_inactive(). Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: move testlink work to system work queueKarsten Graul1-5/+6
The testlink work waits for a response to the testlink request and blocks the single threaded llc_wq. This type of work does not have to be serialized and can be moved to the system work queue. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: add new link state and related helpersKarsten Graul5-20/+42
Before a link can be reused it must have been cleared. Lowest current link state is INACTIVE, which does not mean that the link is already cleared. Add a new state UNUSED that is set when the link is cleared and can be reused. Add helper smc_llc_usable_link() to find an active link in a link group, and smc_link_usable() to determine if a link is usable. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: multi-link support for smc_rmb_rtoken_handling()Karsten Graul3-9/+11
Extend smc_rmb_rtoken_handling() and smc_rtoken_delete() to support multiple links. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: convert static link ID instances to support multiple linksKarsten Graul5-135/+291
As a preparation for the support of multiple links remove the usage of a static link id (SMC_SINGLE_LINK) and allow dynamic link ids. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: convert static link ID to dynamic referencesKarsten Graul10-103/+99
As a preparation for the support of multiple links remove the usage of a static link id (SMC_SINGLE_LINK) and allow dynamic link ids. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: introduce link_idx for link group arrayKarsten Graul2-5/+31
The link_id is the index of the link in the array of the link group. When a link in the array is reused for a new link, a different unique link_id should be used, otherwise the index in the array could collide with the previous link at this array position. Use a new variable link_idx as array index, and make link_id an increasing unique id value. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: separate function for link initializationKarsten Graul1-48/+66
Move the initialization of a new link into its own function, separate from smc_lgr_create, to allow more than one link per link group. Do an extra check if the IB device initialization was successful, and reset the link state if any error occurs during smcr_link_init(). And rename two existing functions to use the prefix smcr_ to indicate that they belong to the SMC-R code path. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net/smc: rework pnet table to support SMC-R failoverKarsten Graul4-230/+319
The pnet table stored pnet ids in the smc device structures. When a device is going down its smc device structure is freed, and when the device is brought online again it no longer has a pnet id set. Rework the pnet table implementation to store the device name with their assigned pnet id and apply the pnet id to devices when they are registered. Signed-off-by: Karsten Graul <kgraul@linux.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29Revert "net: ethernet: fec: Prevent MII event after MII_SPEED write"David S. Miller1-17/+0
This reverts commit 790ab249b55d75fdb427b92f81964cd7cb525eec. This change needs more work. Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29ila: remove unused inline function ila_addr_is_ilaYueHaibing1-5/+0
There's no callers in-tree anymore since commit 84287bb32856 ("ila: add checksum neutral map auto"). Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net: hsr: remove unused inline functionsYueHaibing1-19/+0
There's no callers in-tree anymore. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29netpoll: Fix use correct return type for ndo_start_xmit()Yunjian Wang1-4/+5
The method ndo_start_xmit() returns a value of type netdev_tx_t. Fix the ndo function to use the correct type. Signed-off-by: Yunjian Wang <wangyunjian@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29ptp: ptp_ines: convert to devm_platform_ioremap_resourceWei Yongjun1-7/+1
Use the helper function that wraps the calls to platform_get_resource() and devm_ioremap_resource() together. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29net: hns3: adds support for reading module eeprom infoYonglong Liu4-0/+196
This patch adds support for reading the optical module eeprom info via "ethtool -m". Signed-off-by: Yonglong Liu <liuyonglong@huawei.com> Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29Merge branch 'net-ReST-convert'David S. Miller74-3844/+4731
Mauro Carvalho Chehab says: ==================== net: manually convert files to ReST format - part 1 There are very few documents upstream that aren't converted upstream. This series convert part of the networking text files into ReST. It is part of a bigger set of patches, which were split on parts, in order to make reviewing task easier. The full series (including those ones) are at: https://git.linuxtv.org/mchehab/experimental.git/log/?h=net-docs And the documents, converted to HTML via the building system are at: https://www.infradead.org/~mchehab/kernel_docs/networking/ ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert kcm.txt to ReSTMauro Carvalho Chehab2-40/+46
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipvs-sysctl.txt to ReSTMauro Carvalho Chehab4-93/+102
- add SPDX header; - add a document title; - mark lists as such; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Simon Horman <horms@verge.net.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipvlan.txt to ReSTMauro Carvalho Chehab2-58/+102
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipv6.txt to ReSTMauro Carvalho Chehab4-5/+12
Not much to be done here: - add SPDX header; - add a document title; - mark a literal as such, in order to avoid a warning; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ip-sysctl.txt to ReSTMauro Carvalho Chehab8-284/+560
- add SPDX header; - adjust titles and chapters, adding proper markups; - mark code blocks and literals as such; - mark lists as such; - mark tables as such; - use footnote markup; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipsec.txt to ReSTMauro Carvalho Chehab2-3/+12
Not much to be done here: - add SPDX header; - add a document title; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert iphase.txt to ReSTMauro Carvalho Chehab3-77/+113
- add SPDX header; - adjust title using the proper markup; - mark code blocks and literals as such; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ip_dynaddr.txt to ReSTMauro Carvalho Chehab2-9/+21
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ipddp.txt to ReSTMauro Carvalho Chehab4-7/+13
Not much to be done here: - add SPDX header; - use a document title from existing text; - adjust a chapter markup; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert ila.txt to ReSTMauro Carvalho Chehab2-39/+51
- add SPDX header; - adjust title markup; - mark code blocks and literals as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert hinic.txt to ReSTMauro Carvalho Chehab3-2/+6
Not much to be done here: - add SPDX header; - adjust titles and chapters, adding proper markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert gtp.txt to ReSTMauro Carvalho Chehab2-38/+60
- add SPDX header; - adjust titles and chapters, adding proper markups; - add notes markups; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert gen_stats.txt to ReSTMauro Carvalho Chehab3-45/+56
- add SPDX header; - mark code blocks and literals as such; - mark tables as such; - mark lists as such; - adjust identation, whitespaces and blank lines; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2020-04-29docs: networking: convert generic_netlink.txt to ReSTMauro Carvalho Chehab2-0/+7
Not much to be done here: - add SPDX header; - add a document title; - add to networking/index.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>