diff mbox series

[V7,5/5] bnxt_en: Pass NQ ID to the FW when allocating RX/RX AGG rings

Message ID 20241002165954.128085-6-wei.huang2@amd.com (mailing list archive)
State Not Applicable
Delegated to: Netdev Maintainers
Headers show
Series TPH and cache direct injection support | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Guessed tree name to be net-next
netdev/ynl success Generated files up to date; no warnings/errors; no diff in generated;
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/build_tools success No tools touched, skip
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 8 this patch: 8
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 27 lines checked
netdev/build_clang_rust success No Rust files in patch. Skipping build
netdev/kdoc success Errors and warnings before: 2 this patch: 2
netdev/source_inline success Was 0 now: 0
netdev/contest success net-next-2024-10-06--15-00 (tests: 775)

Commit Message

Wei Huang Oct. 2, 2024, 4:59 p.m. UTC 
From: Michael Chan <michael.chan@broadcom.com>

Newer firmware can use the NQ ring ID associated with each RX/RX AGG
ring to enable PCIe Steering Tags.  When allocating RX/RX AGG rings,
pass along NR ring ID for the firmware to use.  This information helps
optimize DMA writes by directing them to the cache closer to the CPU
consuming the data, potentially improving the processing speed.  This
change is backward-compatible with older firmware, which will simply
disregard the information.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Hongguang Gao <hongguang.gao@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 23ad2b6e70c7..a35207931d7d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -6811,10 +6811,12 @@  static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
 
 			/* Association of rx ring with stats context */
 			grp_info = &bp->grp_info[ring->grp_idx];
+			req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id);
 			req->rx_buf_size = cpu_to_le16(bp->rx_buf_use_size);
 			req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
 			req->enables |= cpu_to_le32(
-				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
+				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID |
+				RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID);
 			if (NET_IP_ALIGN == 2)
 				flags = RING_ALLOC_REQ_FLAGS_RX_SOP_PAD;
 			req->flags = cpu_to_le16(flags);
@@ -6826,11 +6828,13 @@  static int hwrm_ring_alloc_send_msg(struct bnxt *bp,
 			/* Association of agg ring with rx ring */
 			grp_info = &bp->grp_info[ring->grp_idx];
 			req->rx_ring_id = cpu_to_le16(grp_info->rx_fw_ring_id);
+			req->nq_ring_id = cpu_to_le16(grp_info->cp_fw_ring_id);
 			req->rx_buf_size = cpu_to_le16(BNXT_RX_PAGE_SIZE);
 			req->stat_ctx_id = cpu_to_le32(grp_info->fw_stats_ctx);
 			req->enables |= cpu_to_le32(
 				RING_ALLOC_REQ_ENABLES_RX_RING_ID_VALID |
-				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID);
+				RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID |
+				RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID);
 		} else {
 			req->ring_type = RING_ALLOC_REQ_RING_TYPE_RX;
 		}