New upstream version 18.11-rc4

[deb_dpdk.git] / drivers / net / mlx5 / mlx5_mr.c

diff --git a/drivers/net/mlx5/mlx5_mr.c b/drivers/net/mlx5/mlx5_mr.c
index f4b15d3..442b2d2 100644 (file)
--- a/drivers/net/mlx5/mlx5_mr.c
+++ b/drivers/net/mlx5/mlx5_mr.c
@@ -342,8 +342,9 @@ mr_insert_dev_cache(struct rte_eth_dev *dev, struct mlx5_mr *mr)
        DRV_LOG(DEBUG, "port %u inserting MR(%p) to global cache",
                dev->data->port_id, (void *)mr);
        for (n = 0; n < mr->ms_bmp_n; ) {
-               struct mlx5_mr_cache entry = { 0, };
+               struct mlx5_mr_cache entry;
 
+               memset(&entry, 0, sizeof(entry));
                /* Find a contiguous chunk and advance the index. */
                n = mr_find_next_chunk(mr, &entry, n);
                if (!entry.end)
@@ -386,8 +387,9 @@ mr_lookup_dev_list(struct rte_eth_dev *dev, struct mlx5_mr_cache *entry,
                if (mr->ms_n == 0)
                        continue;
                for (n = 0; n < mr->ms_bmp_n; ) {
-                       struct mlx5_mr_cache ret = { 0, };
+                       struct mlx5_mr_cache ret;
 
+                       memset(&ret, 0, sizeof(ret));
                        n = mr_find_next_chunk(mr, &ret, n);
                        if (addr >= ret.start && addr < ret.end) {
                                /* Found. */
@@ -570,7 +572,7 @@ mlx5_mr_create(struct rte_eth_dev *dev, struct mlx5_mr_cache *entry,
         * Find out a contiguous virtual address chunk in use, to which the
         * given address belongs, in order to register maximum range. In the
         * best case where mempools are not dynamically recreated and
-        * '--socket-mem' is speicified as an EAL option, it is very likely to
+        * '--socket-mem' is specified as an EAL option, it is very likely to
         * have only one MR(LKey) per a socket and per a hugepage-size even
         * though the system memory is highly fragmented.
         */
@@ -688,8 +690,9 @@ alloc_resources:
         */
        for (n = 0; n < ms_n; ++n) {
                uintptr_t start;
-               struct mlx5_mr_cache ret = { 0, };
+               struct mlx5_mr_cache ret;
 
+               memset(&ret, 0, sizeof(ret));
                start = data_re.start + n * msl->page_sz;
                /* Exclude memsegs already registered by other MRs. */
                if (mr_lookup_dev(dev, &ret, start) == UINT32_MAX) {
@@ -1042,7 +1045,7 @@ mlx5_rx_addr2mr_bh(struct mlx5_rxq_data *rxq, uintptr_t addr)
  * @return
  *   Searched LKey on success, UINT32_MAX on no match.
  */
-uint32_t
+static uint32_t
 mlx5_tx_addr2mr_bh(struct mlx5_txq_data *txq, uintptr_t addr)
 {
        struct mlx5_txq_ctrl *txq_ctrl =
@@ -1056,6 +1059,32 @@ mlx5_tx_addr2mr_bh(struct mlx5_txq_data *txq, uintptr_t addr)
        return mlx5_mr_addr2mr_bh(ETH_DEV(priv), mr_ctrl, addr);
 }
 
+/**
+ * Bottom-half of LKey search on Tx. If it can't be searched in the memseg
+ * list, register the mempool of the mbuf as externally allocated memory.
+ *
+ * @param txq
+ *   Pointer to Tx queue structure.
+ * @param mb
+ *   Pointer to mbuf.
+ *
+ * @return
+ *   Searched LKey on success, UINT32_MAX on no match.
+ */
+uint32_t
+mlx5_tx_mb2mr_bh(struct mlx5_txq_data *txq, struct rte_mbuf *mb)
+{
+       uintptr_t addr = (uintptr_t)mb->buf_addr;
+       uint32_t lkey;
+
+       lkey = mlx5_tx_addr2mr_bh(txq, addr);
+       if (lkey == UINT32_MAX && rte_errno == ENXIO) {
+               /* Mempool may have externally allocated memory. */
+               return mlx5_tx_update_ext_mp(txq, addr, mlx5_mb2mp(mb));
+       }
+       return lkey;
+}
+
 /**
  * Flush all of the local cache entries.
  *