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RDMA/rxe: Fix data copy for IB_SEND_INLINE

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commit 03fa18a992d5626fd7bf3557a52e826bf8b326b3 upstream.

For RDMA Send and Write with IB_SEND_INLINE, the memory buffers
specified in sge list will be placed inline in the Send Request.

The data should be copied by CPU from the virtual addresses of
corresponding sge list DMA addresses.

Cc: stable@kernel.org
Fixes: 8d7c7c0eeb74 ("RDMA: Add ib_virt_dma_to_page()")
Signed-off-by: Honggang LI <honggangli@163.com>
Link: https://lore.kernel.org/r/20240516095052.542767-1-honggangli@163.com
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Honggang LI 2024-05-16 17:50:52 +08:00 committed by Greg Kroah-Hartman
parent 72040b4f99
commit 9464632483
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/sw/rxe/rxe_verbs.c
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@ -812,7 +812,7 @@ static void copy_inline_data_to_wqe(struct rxe_send_wqe *wqe,
int i;
for (i = 0; i < ibwr->num_sge; i++, sge++) {
memcpy(p, ib_virt_dma_to_page(sge->addr), sge->length);
memcpy(p, ib_virt_dma_to_ptr(sge->addr), sge->length);
p += sge->length;
}
}