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RDMA/nldev: Add command to get FRMR pools

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Add support for a new command in netlink to dump to user the state of
the FRMR pools on the devices.
Expose each pool with its key and the usage statistics for it.

Signed-off-by: Michael Guralnik <michaelgur@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Signed-off-by: Edward Srouji <edwards@nvidia.com>
Link: https://patch.msgid.link/20260226-frmr_pools-v4-8-95360b54f15e@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
This commit is contained in:
Michael Guralnik
2026-02-26 15:52:13 +02:00
committed by Leon Romanovsky
parent ba51cf9fcf
commit 50c035976a
2 changed files with 182 additions and 0 deletions
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17
include/uapi/rdma/rdma_netlink.h
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@@ -308,6 +308,8 @@ enum rdma_nldev_command {
RDMA_NLDEV_CMD_MONITOR,
RDMA_NLDEV_CMD_FRMR_POOLS_GET, /* can dump */
RDMA_NLDEV_NUM_OPS
};
@@ -582,6 +584,21 @@ enum rdma_nldev_attr {
RDMA_NLDEV_SYS_ATTR_MONITOR_MODE, /* u8 */
RDMA_NLDEV_ATTR_STAT_OPCOUNTER_ENABLED, /* u8 */
/*
* FRMR Pools attributes
*/
RDMA_NLDEV_ATTR_FRMR_POOLS, /* nested table */
RDMA_NLDEV_ATTR_FRMR_POOL_ENTRY, /* nested table */
RDMA_NLDEV_ATTR_FRMR_POOL_KEY, /* nested table */
RDMA_NLDEV_ATTR_FRMR_POOL_KEY_ATS, /* u8 */
RDMA_NLDEV_ATTR_FRMR_POOL_KEY_ACCESS_FLAGS, /* u32 */
RDMA_NLDEV_ATTR_FRMR_POOL_KEY_VENDOR_KEY, /* u64 */
RDMA_NLDEV_ATTR_FRMR_POOL_KEY_NUM_DMA_BLOCKS, /* u64 */
RDMA_NLDEV_ATTR_FRMR_POOL_QUEUE_HANDLES, /* u32 */
RDMA_NLDEV_ATTR_FRMR_POOL_MAX_IN_USE, /* u64 */
RDMA_NLDEV_ATTR_FRMR_POOL_IN_USE, /* u64 */
/*
* Always the end
*/