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path: root/drivers/infiniband/hw/bnxt_re/ib_verbs.c
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2020-09-18Merge branch 'mlx5_active_speed' into rdma.git for-nextJason Gunthorpe
Leon Romanovsky says: ==================== IBTA declares speed as 16 bits, but kernel stores it in u8. This series fixes in-kernel declaration while keeping external interface intact. ==================== Based on the mlx5-next branch at git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux due to dependencies. * branch 'mlx5_active_speed': RDMA: Fix link active_speed size RDMA/mlx5: Delete duplicated mlx5_ptys_width enum net/mlx5: Refactor query port speed functions
2020-09-11Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma fixes from Jason Gunthorpe: "A number of driver bug fixes and a few recent regressions: - Several bug fixes for bnxt_re. Crashing, incorrect data reported, and corruption on new HW - Memory leak and crash in rxe - Fix sysfs corruption in rxe if the netdev name is too long - Fix a crash on error unwind in the new cq_pool code - Fix kobject panics in rtrs by working device lifetime properly - Fix a data corruption bug in iser target related to misaligned buffers" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: IB/isert: Fix unaligned immediate-data handling RDMA/rtrs-srv: Set .release function for rtrs srv device during device init RDMA/bnxt_re: Remove set but not used variable 'qplib_ctx' RDMA/core: Fix reported speed and width RDMA/core: Fix unsafe linked list traversal after failing to allocate CQ RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeeds RDMA/bnxt_re: Fix driver crash on unaligned PSN entry address RDMA/bnxt_re: Restrict the max_gids to 256 RDMA/bnxt_re: Static NQ depth allocation RDMA/bnxt_re: Fix the qp table indexing RDMA/bnxt_re: Do not report transparent vlan from QP1 RDMA/mlx4: Read pkey table length instead of hardcoded value RDMA/rxe: Fix panic when calling kmem_cache_create() RDMA/rxe: Fix memleak in rxe_mem_init_user RDMA/rxe: Fix the parent sysfs read when the interface has 15 chars RDMA/rtrs-srv: Replace device_register with device_initialize and device_add
2020-09-11RDMA/bnxt: Do not use ib_umem_page_count() or ib_umem_num_pages()Jason Gunthorpe
ib_umem_page_count() returns the number of 4k entries required for a DMA map, but bnxt_re already computes a variable page size. The correct API to determine the size of the page table array is ib_umem_num_dma_blocks(). Fix the overallocation of the page array in fill_umem_pbl_tbl() when working with larger page sizes by using the right function. Lightly re-organize this function to make it clearer. Replace the other calls to ib_umem_num_pages(). Fixes: d85582517e91 ("RDMA/bnxt_re: Use core helpers to get aligned DMA address") Link: https://lore.kernel.org/r/11-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com Acked-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA/umem: Add rdma_umem_for_each_dma_block()Jason Gunthorpe
This helper does the same as rdma_for_each_block(), except it works on a umem. This simplifies most of the call sites. Link: https://lore.kernel.org/r/4-v2-270386b7e60b+28f4-umem_1_jgg@nvidia.com Acked-by: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com> Acked-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Allow fail of destroy CQLeon Romanovsky
Like any other verbs objects, CQ shouldn't fail during destroy, but mlx5_ib didn't follow this contract with mixed IB verbs objects with DEVX. Such mix causes to the situation where FW and kernel are fully interdependent on the reference counting of each side. Kernel verbs and drivers that don't have DEVX flows shouldn't fail. Fixes: e39afe3d6dbd ("RDMA: Convert CQ allocations to be under core responsibility") Link: https://lore.kernel.org/r/20200907120921.476363-7-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on SRQ destroyLeon Romanovsky
In similar way to other IB objects, restore the ability to return error on SRQ destroy. Strictly speaking, this change is not necessary, and provided here to ensure a symmetrical interface like other destroy functions. Fixes: 68e326dea1db ("RDMA: Handle SRQ allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-5-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on AH destroyLeon Romanovsky
Like any other IB verbs objects, AH are refcounted by ib_core. The release of those objects are controlled by ib_core with promise that AH destroy can't fail. Being SW object for now, this change makes dealloc_ah() to behave like any other destroy IB flows. Fixes: d345691471b4 ("RDMA: Handle AH allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-3-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-09-09RDMA: Restore ability to fail on PD deallocateLeon Romanovsky
The IB verbs objects are counted by the kernel and ib_core ensures that deallocate PD will success so it will be called once all other objects that depends on PD will be released. This is achieved by managing various reference counters on such objects. The mlx5 driver didn't follow this standard flow when allowed DEVX objects that are not managed by ib_core to be interleaved with the ones under ib_core responsibility. In such interleaved scenarios deallocate command can fail and ib_core will leave uobject in internal DB and attempt to clean it later to free resources anyway. This change partially restores returned value from dealloc_pd() for all drivers, but keeping in mind that non-DEVX devices and kernel verbs paths shouldn't fail. Fixes: 21a428a019c9 ("RDMA: Handle PD allocations by IB/core") Link: https://lore.kernel.org/r/20200907120921.476363-2-leon@kernel.org Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-27RDMA/bnxt_re: Remove the qp from list only if the qp destroy succeedsSelvin Xavier
Driver crashes when destroy_qp is re-tried because of an error returned. This is because the qp entry was removed from the qp list during the first call. Remove qp from the list only if destroy_qp returns success. The driver will still trigger a WARN_ON due to the memory leaking, but at least it isn't corrupting memory too. Fixes: 8dae419f9ec7 ("RDMA/bnxt_re: Refactor queue pair creation code") Link: https://lore.kernel.org/r/1598292876-26529-2-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-27RDMA/bnxt_re: Do not report transparent vlan from QP1Selvin Xavier
QP1 Rx CQE reports transparent VLAN ID in the completion and this is used while reporting the completion for received MAD packet. Check if the vlan id is configured before reporting it in the work completion. Fixes: 84511455ac5b ("RDMA/bnxt_re: report vlan_id and sl in qp1 recv completion") Link: https://lore.kernel.org/r/1598292876-26529-3-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-08-23treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-07-20RDMA/bnxt_re: Change wr posting logic to accommodate variable wqesDevesh Sharma
Modifying the post-send and post-recv to initialize the wqes slot by slot dynamically depending on the number of max sges requested by consumer at the time of QP creation. Changed the QP creation logic to determine the size of SQ and RQ in 16B slots based on the number of wqe and number of SGEs requested by consumer Link: https://lore.kernel.org/r/1594822619-4098-6-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-20RDMA/bnxt_re: introduce wqe mode to select execution pathDevesh Sharma
The bnxt_re driver need to decide on how much SQ and RQ memory should to be allocated and which wqe posting/polling algorithm to use. Making changes to set the wqe-mode to a default value during device registration sequence. The wqe-mode is passed to the lower layer driver as well. Going forward in the lower layer driver wqe-mode will be used to decide execution path. Initializing the wqe-mode to static wqe type for now. Link: https://lore.kernel.org/r/1594822619-4098-2-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-07-06RDMA: Remove the udata parameter from alloc_mr callbackGal Pressman
Allocating an MR flow can only be initiated by kernel users, and not from userspace so a udata parameter is redundant. Link: https://lore.kernel.org/r/20200706120343.10816-4-galpress@amazon.com Signed-off-by: Gal Pressman <galpress@amazon.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-06-02RDMA/bnxt_re: Remove FMR leftoversJason Gunthorpe
The bnxt_re_fmr struct is never referenced and the max_fmr items in bnxt_qplib_dev_attr are never read. Link: https://lore.kernel.org/r/6-v3-f58e6669d5d3+2cf-fmr_removal_jgg@mellanox.com Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-05-02RDMA: Group create AH arguments in structMaor Gottlieb
Following patch adds additional argument to the create AH function, so it make sense to group ah_attr and flags arguments in struct. Link: https://lore.kernel.org/r/20200430192146.12863-13-maorg@mellanox.com Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Acked-by: Devesh Sharma <devesh.sharma@broadcom.com> Acked-by: Gal Pressman <galpress@amazon.com> Acked-by: Weihang Li <liweihang@huawei.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-04-14RDMA/bnxt_re: Simplify obtaining queue entry from hw ringDevesh Sharma
Restructring the data path and control path queue management code to simplify the way a queue element is extracted from the hardware ring. Introduced a new function which will give a pointer to the next ring item depending upon the current cons/prod index in the hardware queue. Further, there are hardcoding when size of queue entry is calculated, replacing it with an inline function. This function would be easier to expand if need going forward. The code section to initialize the PSN search areas has also been restructured and couple of functions has been added there. Link: https://lore.kernel.org/r/1585851136-2316-4-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-10RDMA/bnxt_re: Remove a redundant 'memset'Christophe JAILLET
'wqe' is already zeroed at the top of the 'while' loop, just a few lines below, and is not used outside of the loop. So there is no need to zero it again, or for the variable to be declared outside the loop. Link: https://lore.kernel.org/r/20200308065442.5415-1-christophe.jaillet@wanadoo.fr Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-04RDMA/providers: Fix return value when QP type isn't supportedKamal Heib
The proper return code is "-EOPNOTSUPP" when the requested QP type is not supported by the provider. Link: https://lore.kernel.org/r/20200130082049.463-1-kamalheib1@gmail.com Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-03-02RDMA/bnxt_re: Remove set but not used variable 'dev_attr'YueHaibing
Fixes gcc '-Wunused-but-set-variable' warning: drivers/infiniband/hw/bnxt_re/ib_verbs.c: In function 'bnxt_re_create_gsi_qp': drivers/infiniband/hw/bnxt_re/ib_verbs.c:1283:30: warning: variable 'dev_attr' set but not used [-Wunused-but-set-variable] commit 8dae419f9ec7 ("RDMA/bnxt_re: Refactor queue pair creation code") involved this, but not used, so remove it. Link: https://lore.kernel.org/r/20200227064542.91205-1-yuehaibing@huawei.com Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-21RDMA/bnxt_re: use ibdev based message printing functionsDevesh Sharma
Replacing the dev_err/dbg/warn with ibdev_err/dbg/warn. In the IB device provider driver these functions are recommended to use. Currently qplib layer function calls has not been replaced due to unavailability of ib_device pointer at that layer. Link: https://lore.kernel.org/r/1581786665-23705-9-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-21RDMA/bnxt_re: Refactor hardware queue memory allocationDevesh Sharma
At top level there are three major data structure addition. viz bnxt_qplib_hwq_attr, bnxt_qplib_sg_info and bnxt_qplib_tqm_ctx Intorduction of first data structure reduces the arguments list to bnxt_re_alloc_init_hwq() function. There are changes all over the driver code to incorporate this new structure. The caller needs to fill the attribute data structure and pass to this function. The second data structure is to pass memory region description viz. sghead, page_size and page_shift. There are changes all over the driver code to initialize bnxt_re_sg_info data structure. The new data structure helps to reduce the argument list of __alloc_pbl() function call. Till now the TQM rings related members were not collected under any specific data-structure making it hard to manage. The third data sctructure bnxt_qplib_tqm_ctx is added to refactor the TQM queue allocation and initialization. Link: https://lore.kernel.org/r/1581786665-23705-4-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-21RDMA/bnxt_re: Replace chip context structure with pointerDevesh Sharma
The chip_ctx member in bnxt_re_dev structure is now a pointer to struct bnxt_qplib_chip_ctx. Since the member type has changed there are changes in rest of the code wherever dev->chip_ctx is used. Link: https://lore.kernel.org/r/1581786665-23705-3-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-21RDMA/bnxt_re: Refactor queue pair creation codeDevesh Sharma
Restructuring the bnxt_re_create_qp function. Listing below the major changes: - Monolithic central part of create_qp where attributes are initialized is now enclosed in one function and this new function has few more sub-functions. - Top level qp limit checking code moved to a function. - GSI QP creation and GSI Shadow qp creation code is handled in a sub function. Link: https://lore.kernel.org/r/1581786665-23705-2-git-send-email-devesh.sharma@broadcom.com Signed-off-by: Naresh Kumar PBS <nareshkumar.pbs@broadcom.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-02-19RDMA/bnxt_re: Use rdma_read_gid_hw_context to retrieve HW gid indexSelvin Xavier
bnxt_re HW maintains a GID table with only a single entry for the two duplicate GID entries (v1 and v2). Driver needs to map stack gid index to the HW table gid index. Use the new API rdma_read_gid_hw_context () to retrieve the HW GID context to get the HW table index. Link: https://lore.kernel.org/r/1582107594-5180-3-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2020-01-16IB: Allow calls to ib_umem_get from kernel ULPsMoni Shoua
So far the assumption was that ib_umem_get() and ib_umem_odp_get() are called from flows that start in UVERBS and therefore has a user context. This assumption restricts flows that are initiated by ULPs and need the service that ib_umem_get() provides. This patch changes ib_umem_get() and ib_umem_odp_get() to get IB device directly by relying on the fact that both UVERBS and ULPs sets that field correctly. Reviewed-by: Guy Levi <guyle@mellanox.com> Signed-off-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2020-01-03RDMA/bnxt_re: Avoid freeing MR resources if dereg failsSelvin Xavier
The driver returns an error code for MR dereg, but frees the MR structure. When the MR dereg is retried due to previous error, the system crashes as the structure is already freed. BUG: unable to handle kernel NULL pointer dereference at 00000000000001b8 PGD 0 P4D 0 Oops: 0000 [#1] SMP PTI CPU: 7 PID: 12178 Comm: ib_send_bw Kdump: loaded Not tainted 4.18.0-124.el8.x86_64 #1 Hardware name: Dell Inc. PowerEdge R430/03XKDV, BIOS 1.1.10 03/10/2015 RIP: 0010:__dev_printk+0x2a/0x70 Code: 0f 1f 44 00 00 49 89 d1 48 85 f6 0f 84 f6 2b 00 00 4c 8b 46 70 4d 85 c0 75 04 4c 8b 46 10 48 8b 86 a8 00 00 00 48 85 c0 74 16 <48> 8b 08 0f be 7f 01 48 c7 c2 13 ac ac 83 83 ef 30 e9 10 fe ff ff RSP: 0018:ffffaf7c04607a60 EFLAGS: 00010006 RAX: 00000000000001b8 RBX: ffffa0010c91c488 RCX: 0000000000000246 RDX: ffffaf7c04607a68 RSI: ffffa0010c91caa8 RDI: ffffffff83a788eb RBP: ffffaf7c04607ac8 R08: 0000000000000000 R09: ffffaf7c04607a68 R10: 0000000000000000 R11: 0000000000000001 R12: ffffaf7c04607b90 R13: 000000000000000e R14: 0000000000000000 R15: 00000000ffffa001 FS: 0000146fa1f1cdc0(0000) GS:ffffa0012fac0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000000001b8 CR3: 000000007680a003 CR4: 00000000001606e0 Call Trace: dev_err+0x6c/0x90 ? dev_printk_emit+0x4e/0x70 bnxt_qplib_rcfw_send_message+0x594/0x660 [bnxt_re] ? dev_err+0x6c/0x90 bnxt_qplib_free_mrw+0x80/0xe0 [bnxt_re] bnxt_re_dereg_mr+0x2e/0xd0 [bnxt_re] ib_dereg_mr+0x2f/0x50 [ib_core] destroy_hw_idr_uobject+0x20/0x70 [ib_uverbs] uverbs_destroy_uobject+0x2e/0x170 [ib_uverbs] __uverbs_cleanup_ufile+0x6e/0x90 [ib_uverbs] uverbs_destroy_ufile_hw+0x61/0x130 [ib_uverbs] ib_uverbs_close+0x1f/0x80 [ib_uverbs] __fput+0xb7/0x230 task_work_run+0x8a/0xb0 do_exit+0x2da/0xb40 ... RIP: 0033:0x146fa113a387 Code: Bad RIP value. RSP: 002b:00007fff945d1478 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff02 RAX: 0000000000000000 RBX: 000055a248908d70 RCX: 0000000000000000 RDX: 0000146fa1f2b000 RSI: 0000000000000001 RDI: 000055a248906488 RBP: 000055a248909630 R08: 0000000000010000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 000055a248906488 R13: 0000000000000001 R14: 0000000000000000 R15: 000055a2489095f0 Do not free the MR structures, when driver returns error to the stack. Fixes: 872f3578241d ("RDMA/bnxt_re: Add support for MRs with Huge pages") Link: https://lore.kernel.org/r/1574671174-5064-2-git-send-email-selvin.xavier@broadcom.com Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-11-17IB/umem: remove the dmasync argument to ib_umem_getChristoph Hellwig
The argument is always ignored, so remove it. Link: https://lore.kernel.org/r/20191113073214.9514-3-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Michal Kalderon <michal.kalderon@marvell.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-10-01RDMA/bnxt_re: Remove unsupported modify_device callbackKamal Heib
There is no need to return always zero for function which is not supported. Link: https://lore.kernel.org/r/20190923104158.5331-3-kamalheib1@gmail.com Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-09-13RDMA: Fix goto target to release the allocated memoryNavid Emamdoost
In bnxt_re_create_srq(), when ib_copy_to_udata() fails allocated memory should be released by goto fail. Fixes: 37cb11acf1f7 ("RDMA/bnxt_re: Add SRQ support for Broadcom adapters") Link: https://lore.kernel.org/r/20190910222120.16517-1-navid.emamdoost@gmail.com Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com> Reviewed-by: Jason Gunthorpe <jgg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-08-12RDMA: Introduce ib_port_phys_state enumKamal Heib
In order to improve readability, add ib_port_phys_state enum to replace the use of magic numbers. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Reviewed-by: Andrew Boyer <aboyer@tobark.org> Acked-by: Michal Kalderon <michal.kalderon@marvell.com> Acked-by: Bernard Metzler <bmt@zurich.ibm.com> Link: https://lore.kernel.org/r/20190807103138.17219-2-kamalheib1@gmail.com Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-07-22RDMA/bnxt_re: Honor vlan_id in GID entry comparisonSelvin Xavier
A GID entry consists of GID, vlan, netdev and smac. Extend GID duplicate check comparisons to consider vlan_id as well to support IPv6 VLAN based link local addresses. Introduce a new structure (bnxt_qplib_gid_info) to hold gid and vlan_id information. The issue is discussed in the following thread https://lore.kernel.org/r/AM0PR05MB4866CFEDCDF3CDA1D7D18AA5D1F20@AM0PR05MB4866.eurprd05.prod.outlook.com Fixes: 823b23da7113 ("IB/core: Allow vlan link local address based RoCE GIDs") Cc: <stable@vger.kernel.org> # v5.2+ Link: https://lore.kernel.org/r/20190715091913.15726-1-selvin.xavier@broadcom.com Reported-by: Yi Zhang <yi.zhang@redhat.com> Co-developed-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Tested-by: Yi Zhang <yi.zhang@redhat.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-06-20RDMA: Check umem pointer validity prior to releaseLeon Romanovsky
Update ib_umem_release() to behave similarly to kfree() and allow submitting NULL pointer as safe input to this function. Fixes: a52c8e2469c3 ("RDMA: Clean destroy CQ in drivers do not return errors") Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11RDMA: Convert CQ allocations to be under core responsibilityLeon Romanovsky
Ensure that CQ is allocated and freed by IB/core and not by drivers. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Gal Pressman <galpress@amazon.com> Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Tested-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-11RDMA: Clean destroy CQ in drivers do not return errorsLeon Romanovsky
Like all other destroy commands, .destroy_cq() call is not supposed to fail. In all flows, the attempt to return earlier caused to memory leaks. This patch converts .destroy_cq() to do not return any errors. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Gal Pressman <galpress@amazon.com> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2019-06-10RDMA: Move uverbs_abi_ver into struct ib_device_opsJason Gunthorpe
No reason for every driver to emit code to set this, just make it part of the driver's existing static const ops structure. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-06RDMA/bnxt_re: Use core helpers to get aligned DMA addressShiraz Saleem
Call the core helpers to retrieve the HW aligned address to use for the MR, within a supported bnxt_re page size. Remove checking the umem->hugtetlb flag as it is no longer required. The new DMA block iterator will return the 2M aligned address if the MR is backed by 2M huge pages. Acked-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03RDMA: Introduce and use GID attr helper to read RoCE L2 fieldsParav Pandit
Instead of RoCE drivers figuring out vlan, smac fields while working on QP/AH, provide a helper routine to read the L2 fields such as vlan_id and source mac address. This moves logic from mlx5 driver to core for wider usage for RoCE ports. This is a preparation patch to allow detaching netdev in subsequent patch. Signed-off-by: Parav Pandit <parav@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-25ib/bnxt: Remove mention of idr_alloc from commentMatthew Wilcox
Signed-off-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-09RDMA/drivers: Convert easy drivers to use ib_device_set_netdev()Jason Gunthorpe
Drivers that never change their ndev dynamically do not need to use the get_netdev callback. Signed-off-by: Jason Gunthorpe <jgg@mellanox.com> Acked-by: Selvin Xavier <selvin.xavier@broadcom.com> Acked-by: Michal Kalderon <michal.kalderon@marvell.com> Acked-by: Adit Ranadive <aditr@vmware.com>
2019-04-08RDMA: Handle SRQ allocations by IB/coreLeon Romanovsky
Convert SRQ allocation from drivers to be in the IB/core Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-08RDMA: Handle AH allocations by IB/coreLeon Romanovsky
Simplify drivers by ensuring lifetime of ib_ah object. The changes in .create_ah() go hand in hand with relevant update in .destroy_ah(). We will use this opportunity and convert .destroy_ah() to don't fail, as it was suggested a long time ago, because there is nothing to do in case of failure during destroy. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01IB: Pass only ib_udata in function prototypesShamir Rabinovitch
Now when ib_udata is passed to all the driver's object create/destroy APIs the ib_udata will carry the ib_ucontext for every user command. There is no need to also pass the ib_ucontext via the functions prototypes. Make ib_udata the only argument psssed. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-04-01IB: Pass uverbs_attr_bundle down ib_x destroy pathShamir Rabinovitch
The uverbs_attr_bundle with the ucontext is sent down to the drivers ib_x destroy path as ib_udata. The next patch will use the ib_udata to free the drivers destroy path from the dependency in 'uobject->context' as we already did for the create path. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-28RDMA/bnxt_re: Use correct sizing on buffers holding page DMA addressesSelvin Xavier
umem->nmap is used while allocating internal buffer for storing page DMA addresses. This causes out of bounds array access while iterating the umem DMA-mapped SGL with umem page combining as umem->nmap can be less than number of system pages in umem. Use ib_umem_num_pages() instead of umem->nmap to size the page array. Add a new structure (bnxt_qplib_sg_info) to pass sglist, npages and nmap. Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-03-04bnxt_re: Clean cq for kernel consumers onlyDevesh Sharma
Kernel space provider driver should clean the CQs belonging to kernel space consumers only. The current implementation is doing reverse of it. Fixing the same by avoiding the call to __clean_cq on a kernel qp during destroy. Fixes: c50866e2853a ("bnxt_re: fix the regression due to changes in alloc_pbl") Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-22RDMA: Handle ucontext allocations by IB/coreLeon Romanovsky
Following the PD conversion patch, do the same for ucontext allocations. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-22bnxt_re: fix the regression due to changes in alloc_pblDevesh Sharma
While adding the use of for_each_sg_dma_page iterator for Brodcom's rdma driver, there was a regression added in the __alloc_pbl path. The change left bnxt_re in DOA state in for-next branch. Fixing the regression to avoid the host crash when a user space object is created. Restricting the unconditional access to hwq.pg_arr when hwq is initialized for user space objects. Fixes: 161ebe2498d4 ("RDMA/bnxt_re: Use for_each_sg_dma_page iterator on umem SGL") Reported-by: Gal Pressman <galpress@amazon.com> Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com> Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-15IB/{hw,sw}: Remove 'uobject->context' dependency in object creation APIsShamir Rabinovitch
Now when we have the udata passed to all the ib_xxx object creation APIs and the additional macro 'rdma_udata_to_drv_context' to get the ib_ucontext from ib_udata stored in uverbs_attr_bundle, we can finally start to remove the dependency of the drivers in the ib_xxx->uobject->context. Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-11RDMA/bnxt_re: fix or'ing of data into an uninitialized struct memberColin Ian King
The struct member comp_mask has not been initialized however a bit pattern is being bitwise or'd into the member and hence other bit fields in comp_mask may contain any garbage from the stack. Fix this by making the bitwise or into an assignment. Fixes: 95b86d1c91ad ("RDMA/bnxt_re: Update kernel user abi to pass chip context") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Devesh Sharma <devesh.sharma@broadcom.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
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