Re: [PATCH 6.1.y] RDMA/irdma: Ensure iWarp QP queue memory is OS paged aligned

On Wed, Feb 07, 2024 at 10:32:39AM -0600, Shiraz Saleem wrote:

From: Mike Marciniszyn mike.marciniszyn@intel.com

[ 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.

The patch needed to be reworked because the separate routines present upstream are not there in older irdma drivers.

Fixes: e965ef0e7b2c ("RDMA/irdma: Split QP handler into irdma_reg_user_mr_type_qp")

Is this fixes tag incorrect? there's no e965ef0e7b2c in 6.1.