From: Konstantin Taranov Date: Wed, 5 Feb 2025 10:30:05 +0000 (-0800) Subject: RDMA/mana_ib: Allocate PAGE aligned doorbell index X-Git-Tag: v6.14-rc5~33^2~10 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=29b7bb98234cc287cebef9bccf638c2e3f39be71;p=thirdparty%2Fkernel%2Flinux.git RDMA/mana_ib: Allocate PAGE aligned doorbell index 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 Signed-off-by: Konstantin Taranov Link: https://patch.msgid.link/1738751405-15041-1-git-send-email-kotaranov@linux.microsoft.com Reviewed-by: Long Li Signed-off-by: Leon Romanovsky --- diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c index 67c2d43135a8a..457cea6d99095 100644 --- a/drivers/infiniband/hw/mana/main.c +++ b/drivers/infiniband/hw/mana/main.c @@ -174,7 +174,7 @@ 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;