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path: root/drivers/net/ethernet/intel/ice/ice.h
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Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice.h')
-rw-r--r--drivers/net/ethernet/intel/ice/ice.h36
1 files changed, 23 insertions, 13 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index cc5b85afd437..841fa149c407 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -684,8 +684,8 @@ static inline void ice_set_ring_xdp(struct ice_tx_ring *ring)
* ice_xsk_pool - get XSK buffer pool bound to a ring
* @ring: Rx ring to use
*
- * Returns a pointer to xdp_umem structure if there is a buffer pool present,
- * NULL otherwise.
+ * Returns a pointer to xsk_buff_pool structure if there is a buffer pool
+ * present, NULL otherwise.
*/
static inline struct xsk_buff_pool *ice_xsk_pool(struct ice_rx_ring *ring)
{
@@ -699,23 +699,33 @@ static inline struct xsk_buff_pool *ice_xsk_pool(struct ice_rx_ring *ring)
}
/**
- * ice_tx_xsk_pool - get XSK buffer pool bound to a ring
- * @ring: Tx ring to use
+ * ice_tx_xsk_pool - assign XSK buff pool to XDP ring
+ * @vsi: pointer to VSI
+ * @qid: index of a queue to look at XSK buff pool presence
*
- * Returns a pointer to xdp_umem structure if there is a buffer pool present,
- * NULL otherwise. Tx equivalent of ice_xsk_pool.
+ * Sets XSK buff pool pointer on XDP ring.
+ *
+ * XDP ring is picked from Rx ring, whereas Rx ring is picked based on provided
+ * queue id. Reason for doing so is that queue vectors might have assigned more
+ * than one XDP ring, e.g. when user reduced the queue count on netdev; Rx ring
+ * carries a pointer to one of these XDP rings for its own purposes, such as
+ * handling XDP_TX action, therefore we can piggyback here on the
+ * rx_ring->xdp_ring assignment that was done during XDP rings initialization.
*/
-static inline struct xsk_buff_pool *ice_tx_xsk_pool(struct ice_tx_ring *ring)
+static inline void ice_tx_xsk_pool(struct ice_vsi *vsi, u16 qid)
{
- struct ice_vsi *vsi = ring->vsi;
- u16 qid;
+ struct ice_tx_ring *ring;
- qid = ring->q_index - vsi->alloc_txq;
+ ring = vsi->rx_rings[qid]->xdp_ring;
+ if (!ring)
+ return;
- if (!ice_is_xdp_ena_vsi(vsi) || !test_bit(qid, vsi->af_xdp_zc_qps))
- return NULL;
+ if (!ice_is_xdp_ena_vsi(vsi) || !test_bit(qid, vsi->af_xdp_zc_qps)) {
+ ring->xsk_pool = NULL;
+ return;
+ }
- return xsk_get_pool_from_qid(vsi->netdev, qid);
+ ring->xsk_pool = xsk_get_pool_from_qid(vsi->netdev, qid);
}
/**