6.6-stable review patch. If anyone has any objections, please let me know.
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From: Konstantin Taranov kotaranov@microsoft.com
[ Upstream commit 29b7bb98234cc287cebef9bccf638c2e3f39be71 ]
Allocate a PAGE aligned doorbell index to ensure each process gets a separate PAGE sized doorbell area space remapped to it in mana_ib_mmap
Fixes: 0266a177631d ("RDMA/mana_ib: Add a driver for Microsoft Azure Network Adapter") Signed-off-by: Shiraz Saleem shirazsaleem@microsoft.com Signed-off-by: Konstantin Taranov kotaranov@microsoft.com Link: https://patch.msgid.link/1738751405-15041-1-git-send-email-kotaranov@linux.m... Reviewed-by: Long Li longli@microsoft.com Signed-off-by: Leon Romanovsky leon@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/infiniband/hw/mana/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index 85717482a616e..6fa9b12532997 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -180,7 +180,7 @@ static int mana_gd_allocate_doorbell_page(struct gdma_context *gc,
req.resource_type = GDMA_RESOURCE_DOORBELL_PAGE; req.num_resources = 1; - req.alignment = 1; + req.alignment = PAGE_SIZE / MANA_PAGE_SIZE;
/* Have GDMA start searching from 0 */ req.allocated_resources = 0;