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Index: sys/dev/mlx5/mlx5_en/en.h
===================================================================
--- sys/dev/mlx5/mlx5_en/en.h
+++ sys/dev/mlx5/mlx5_en/en.h
@@ -48,6 +48,7 @@
#include <netinet/tcp_lro.h>
#include <netinet/udp.h>
#include <net/ethernet.h>
+#include <net/pfil.h>
#include <sys/buf_ring.h>
#include <sys/kthread.h>
@@ -838,6 +839,7 @@
struct mlx5e_clbr_point clbr_points[2];
u_int clbr_gen;
+ struct pfil_head *pfil;
struct mlx5e_channel channel[];
};
Index: sys/dev/mlx5/mlx5_en/mlx5_en_main.c
===================================================================
--- sys/dev/mlx5/mlx5_en/mlx5_en_main.c
+++ sys/dev/mlx5/mlx5_en/mlx5_en_main.c
@@ -3664,6 +3664,7 @@
struct sysctl_oid_list *child;
int ncv = mdev->priv.eq_table.num_comp_vectors;
char unit[16];
+ struct pfil_head_args pa;
int err;
int i;
u32 eth_proto_cap;
@@ -3898,6 +3899,12 @@
callout_init(&priv->tstmp_clbr, CALLOUT_DIRECT);
mlx5e_reset_calibration_callout(priv);
+ pa.pa_version = PFIL_VERSION;
+ pa.pa_flags = PFIL_IN;
+ pa.pa_type = PFIL_TYPE_ETHERNET;
+ pa.pa_headname = ifp->if_xname;
+ priv->pfil = pfil_head_register(&pa);
+
return (priv);
#ifdef RATELIMIT
@@ -3974,6 +3981,12 @@
pause("W", hz);
}
+ /* deregister pfil */
+ if (priv->pfil != NULL) {
+ pfil_head_unregister(priv->pfil);
+ priv->pfil = NULL;
+ }
+
/* unregister device */
ifmedia_removeall(&priv->media);
ether_ifdetach(ifp);
Index: sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
===================================================================
--- sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
+++ sys/dev/mlx5/mlx5_en/mlx5_en_rx.c
@@ -430,15 +430,18 @@
static int
mlx5e_poll_rx_cq(struct mlx5e_rq *rq, int budget)
{
- int i;
+ struct pfil_head *pfil;
+ int i, rv;
+ CURVNET_SET_QUIET(rq->ifp->if_vnet);
+ pfil = rq->channel->priv->pfil;
for (i = 0; i < budget; i++) {
struct mlx5e_rx_wqe *wqe;
struct mlx5_cqe64 *cqe;
struct mbuf *mb;
__be16 wqe_counter_be;
u16 wqe_counter;
- u32 byte_cnt;
+ u32 byte_cnt, seglen;
cqe = mlx5e_get_cqe(&rq->cq);
if (!cqe)
@@ -462,6 +465,42 @@
rq->stats.wqe_err++;
goto wq_ll_pop;
}
+ if (pfil != NULL && PFIL_HOOKED_IN(pfil)) {
+ seglen = MIN(byte_cnt, MLX5E_MAX_RX_BYTES);
+ rv = pfil_run_hooks(rq->channel->priv->pfil,
+ rq->mbuf[wqe_counter].data, rq->ifp,
+ seglen | PFIL_MEMPTR | PFIL_IN, NULL);
+
+ switch (rv) {
+ case PFIL_DROPPED:
+ case PFIL_CONSUMED:
+ /*
+ * Filter dropped or consumed it. In
+ * either case, we can just recycle
+ * buffer; there is no more work to do.
+ */
+ rq->stats.packets++;
+ goto wq_ll_pop;
+ break;
+ case PFIL_REALLOCED:
+ /*
+ * Filter copied it; recycle buffer
+ * and receive the new mbuf allocated
+ * by the Filter
+ */
+ mb = *(struct mbuf **)
+ rq->mbuf[wqe_counter].data;
+ goto rx_common;
+ break;
+ default:
+ /*
+ * The Filter said it was OK, so
+ * receive like normal.
+ */
+ KASSERT(rv == PFIL_PASS,
+ ("Filter returned %d!\n", rv));
+ }
+ }
if ((MHLEN - MLX5E_NET_IP_ALIGN) >= byte_cnt &&
(mb = m_gethdr(M_NOWAIT, MT_DATA)) != NULL) {
#if (MLX5E_MAX_RX_SEGS != 1)
@@ -480,7 +519,7 @@
bus_dmamap_unload(rq->dma_tag,
rq->mbuf[wqe_counter].dma_map);
}
-
+rx_common:
mlx5e_build_rx_mbuf(cqe, rq, mb, byte_cnt);
rq->stats.bytes += byte_cnt;
rq->stats.packets++;
@@ -499,6 +538,7 @@
mlx5_wq_ll_pop(&rq->wq, wqe_counter_be,
&wqe->next.next_wqe_index);
}
+ CURVNET_RESTORE();
mlx5_cqwq_update_db_record(&rq->cq.wq);

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