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RDMA/irdma: Ensure iWarp QP queue memory is OS paged aligned

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[ Upstream commit 0a5ec366de ]

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: e965ef0e7b ("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>
This commit is contained in:
Mike Marciniszyn 2023-11-29 14:21:42 -06:00 committed by Greg Kroah-Hartman
parent d103c131ef
commit 12a77574f0
1 changed files with 5 additions and 0 deletions
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5
drivers/infiniband/hw/irdma/verbs.c
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@ -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;