diff mbox series

[v6,bpf,08/11] ice: update xdp_rxq_info::frag_size for ZC enabled Rx queue

Message ID 20240124191602.566724-9-maciej.fijalkowski@intel.com (mailing list archive)
State Accepted
Commit 3de38c87174225487fc93befeea7d380db80aef6
Delegated to: BPF
Headers show
Series net: bpf_xdp_adjust_tail() and Intel mbuf fixes | expand

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Commit Message

Fijalkowski, Maciej Jan. 24, 2024, 7:15 p.m. UTC 
Now that ice driver correctly sets up frag_size in xdp_rxq_info, let us
make it work for ZC multi-buffer as well. ice_rx_ring::rx_buf_len for ZC
is being set via xsk_pool_get_rx_frame_size() and this needs to be
propagated up to xdp_rxq_info.

Use a bigger hammer and instead of unregistering only xdp_rxq_info's
memory model, unregister it altogether and register it again and have
xdp_rxq_info with correct frag_size value.

Fixes: 1bbc04de607b ("ice: xsk: add RX multi-buffer support")
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
---
 drivers/net/ethernet/intel/ice/ice_base.c | 37 ++++++++++++++---------
 1 file changed, 23 insertions(+), 14 deletions(-)

Comments

Magnus Karlsson Jan. 25, 2024, 8:02 a.m. UTC | #1 
On Wed, 24 Jan 2024 at 20:27, Maciej Fijalkowski
<maciej.fijalkowski@intel.com> wrote:
>
> Now that ice driver correctly sets up frag_size in xdp_rxq_info, let us
> make it work for ZC multi-buffer as well. ice_rx_ring::rx_buf_len for ZC
> is being set via xsk_pool_get_rx_frame_size() and this needs to be
> propagated up to xdp_rxq_info.
>
> Use a bigger hammer and instead of unregistering only xdp_rxq_info's
> memory model, unregister it altogether and register it again and have
> xdp_rxq_info with correct frag_size value.

Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>

> Fixes: 1bbc04de607b ("ice: xsk: add RX multi-buffer support")
> Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_base.c | 37 ++++++++++++++---------
>  1 file changed, 23 insertions(+), 14 deletions(-)
>
> diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c
> index 533b923cae2d..7ac847718882 100644
> --- a/drivers/net/ethernet/intel/ice/ice_base.c
> +++ b/drivers/net/ethernet/intel/ice/ice_base.c
> @@ -547,19 +547,27 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring)
>         ring->rx_buf_len = ring->vsi->rx_buf_len;
>
>         if (ring->vsi->type == ICE_VSI_PF) {
> -               if (!xdp_rxq_info_is_reg(&ring->xdp_rxq))
> -                       /* coverity[check_return] */
> -                       __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
> -                                          ring->q_index,
> -                                          ring->q_vector->napi.napi_id,
> -                                          ring->vsi->rx_buf_len);
> +               if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {
> +                       err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
> +                                                ring->q_index,
> +                                                ring->q_vector->napi.napi_id,
> +                                                ring->rx_buf_len);
> +                       if (err)
> +                               return err;
> +               }
>
>                 ring->xsk_pool = ice_xsk_pool(ring);
>                 if (ring->xsk_pool) {
> -                       xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq);
> +                       xdp_rxq_info_unreg(&ring->xdp_rxq);
>
>                         ring->rx_buf_len =
>                                 xsk_pool_get_rx_frame_size(ring->xsk_pool);
> +                       err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
> +                                                ring->q_index,
> +                                                ring->q_vector->napi.napi_id,
> +                                                ring->rx_buf_len);
> +                       if (err)
> +                               return err;
>                         err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
>                                                          MEM_TYPE_XSK_BUFF_POOL,
>                                                          NULL);
> @@ -571,13 +579,14 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring)
>                         dev_info(dev, "Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n",
>                                  ring->q_index);
>                 } else {
> -                       if (!xdp_rxq_info_is_reg(&ring->xdp_rxq))
> -                               /* coverity[check_return] */
> -                               __xdp_rxq_info_reg(&ring->xdp_rxq,
> -                                                  ring->netdev,
> -                                                  ring->q_index,
> -                                                  ring->q_vector->napi.napi_id,
> -                                                  ring->vsi->rx_buf_len);
> +                       if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {
> +                               err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
> +                                                        ring->q_index,
> +                                                        ring->q_vector->napi.napi_id,
> +                                                        ring->rx_buf_len);
> +                               if (err)
> +                                       return err;
> +                       }
>
>                         err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
>                                                          MEM_TYPE_PAGE_SHARED,
> --
> 2.34.1
>
>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c
index 533b923cae2d..7ac847718882 100644
--- a/drivers/net/ethernet/intel/ice/ice_base.c
+++ b/drivers/net/ethernet/intel/ice/ice_base.c
@@ -547,19 +547,27 @@  int ice_vsi_cfg_rxq(struct ice_rx_ring *ring)
 	ring->rx_buf_len = ring->vsi->rx_buf_len;
 
 	if (ring->vsi->type == ICE_VSI_PF) {
-		if (!xdp_rxq_info_is_reg(&ring->xdp_rxq))
-			/* coverity[check_return] */
-			__xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
-					   ring->q_index,
-					   ring->q_vector->napi.napi_id,
-					   ring->vsi->rx_buf_len);
+		if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {
+			err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
+						 ring->q_index,
+						 ring->q_vector->napi.napi_id,
+						 ring->rx_buf_len);
+			if (err)
+				return err;
+		}
 
 		ring->xsk_pool = ice_xsk_pool(ring);
 		if (ring->xsk_pool) {
-			xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq);
+			xdp_rxq_info_unreg(&ring->xdp_rxq);
 
 			ring->rx_buf_len =
 				xsk_pool_get_rx_frame_size(ring->xsk_pool);
+			err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
+						 ring->q_index,
+						 ring->q_vector->napi.napi_id,
+						 ring->rx_buf_len);
+			if (err)
+				return err;
 			err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
 							 MEM_TYPE_XSK_BUFF_POOL,
 							 NULL);
@@ -571,13 +579,14 @@  int ice_vsi_cfg_rxq(struct ice_rx_ring *ring)
 			dev_info(dev, "Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n",
 				 ring->q_index);
 		} else {
-			if (!xdp_rxq_info_is_reg(&ring->xdp_rxq))
-				/* coverity[check_return] */
-				__xdp_rxq_info_reg(&ring->xdp_rxq,
-						   ring->netdev,
-						   ring->q_index,
-						   ring->q_vector->napi.napi_id,
-						   ring->vsi->rx_buf_len);
+			if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) {
+				err = __xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev,
+							 ring->q_index,
+							 ring->q_vector->napi.napi_id,
+							 ring->rx_buf_len);
+				if (err)
+					return err;
+			}
 
 			err = xdp_rxq_info_reg_mem_model(&ring->xdp_rxq,
 							 MEM_TYPE_PAGE_SHARED,