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| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2023-11-29 23:21:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-12-13 20:45:16 +0300 |
| commit | 12a77574f0901d3ee9a20c2ef45d53f18cd7d887 (patch) | |
| tree | 40d4d64844b6790d14829807c503dbdfb4fa06e8 | |
| parent | d103c131ef3be6ed6f4d779fc7b1fff7d01368f6 (diff) | |
| download | linux-12a77574f0901d3ee9a20c2ef45d53f18cd7d887.tar.xz | |
RDMA/irdma: Ensure iWarp QP queue memory is OS paged aligned
[ Upstream commit 0a5ec366de7e94192669ba08de6ed336607fd282 ]
The SQ is shared for between kernel and used by storing the kernel page
pointer and passing that to a kmap_atomic().
This then requires that the alignment is PAGE_SIZE aligned.
Fix by adding an iWarp specific alignment check.
Fixes: e965ef0e7b2c ("RDMA/irdma: Split QP handler into irdma_reg_user_mr_type_qp")
Link: https://lore.kernel.org/r/20231129202143.1434-3-shiraz.saleem@intel.com
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/infiniband/hw/irdma/verbs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index 4fef576e9994..c7cb328b90f9 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -2935,6 +2935,11 @@ static int irdma_reg_user_mr_type_qp(struct irdma_mem_reg_req req, int err; u8 lvl; + /* iWarp: Catch page not starting on OS page boundary */ + if (!rdma_protocol_roce(&iwdev->ibdev, 1) && + ib_umem_offset(iwmr->region)) + return -EINVAL; + total = req.sq_pages + req.rq_pages + 1; if (total > iwmr->page_cnt) return -EINVAL; |