common/cnxk: support SMQ flush

Each NIX interface had one or more SMQs connected to SQs to send
packets. When flush enabled on SMQ, hardware will push all packets
from SMQ to physical link. This API will enable flush on all SMQs
of an interface.

Signed-off-by: Satha Rao <skoteshwar@marvell.com>
Acked-by: Nithin Dabilpuram <ndabilpuram@marvell.com>

diff --git a/drivers/common/cnxk/hw/nix.h b/drivers/common/cnxk/hw/nix.h
index a0ffd2566047a865815afb73b6c112a1fb16e817..bc908c25b138dbce7ea12e2371bfcda86270b191 100644 (file)
--- a/drivers/common/cnxk/hw/nix.h
+++ b/drivers/common/cnxk/hw/nix.h
@@ -2189,4 +2189,10 @@ struct nix_lso_format {
 #define NIX_LSO_FORMAT_IDX_TSOV4 0
 #define NIX_LSO_FORMAT_IDX_TSOV6 1
 
+/* [CN10K, .) */
+#define NIX_SENDSTATALG_MASK     0x7
+#define NIX_SENDSTATALG_SEL_MASK  0x8
+#define NIX_SENDSTAT_IOFFSET_MASK 0xFFF
+#define NIX_SENDSTAT_OOFFSET_MASK 0xFFF
+
 #endif /* __NIX_HW_H__ */

diff --git a/drivers/common/cnxk/roc_nix.h b/drivers/common/cnxk/roc_nix.h
index b0e6fabe318f7508af26c46165e88d4a88c69098..ac7bd7e3ecd9a6503df16e4b81929b21e117f624 100644 (file)
--- a/drivers/common/cnxk/roc_nix.h
+++ b/drivers/common/cnxk/roc_nix.h
@@ -468,6 +468,7 @@ int __roc_api roc_nix_tm_rsrc_count(struct roc_nix *roc_nix,
 int __roc_api roc_nix_tm_node_name_get(struct roc_nix *roc_nix,
                                       uint32_t node_id, char *buf,
                                       size_t buflen);
+int __roc_api roc_nix_smq_flush(struct roc_nix *roc_nix);
 
 /* MAC */
 int __roc_api roc_nix_mac_rxtx_start_stop(struct roc_nix *roc_nix, bool start);

diff --git a/drivers/common/cnxk/roc_nix_tm_ops.c b/drivers/common/cnxk/roc_nix_tm_ops.c
index f2173c9a588a851c527e73f9c19880f4ef73e9c3..02ee08bc4c4264b580514450825cba3499fc48d1 100644 (file)
--- a/drivers/common/cnxk/roc_nix_tm_ops.c
+++ b/drivers/common/cnxk/roc_nix_tm_ops.c
@@ -317,6 +317,56 @@ roc_nix_tm_node_delete(struct roc_nix *roc_nix, uint32_t node_id, bool free)
        return nix_tm_node_delete(roc_nix, node_id, ROC_NIX_TM_USER, free);
 }
 
+int
+roc_nix_smq_flush(struct roc_nix *roc_nix)
+{
+       struct nix *nix = roc_nix_to_nix_priv(roc_nix);
+       struct nix_tm_node_list *list;
+       enum roc_nix_tm_tree tree;
+       struct nix_tm_node *node;
+       int rc = 0;
+
+       if (!(nix->tm_flags & NIX_TM_HIERARCHY_ENA))
+               return 0;
+
+       tree = nix->tm_tree;
+       list = nix_tm_node_list(nix, tree);
+
+       /* XOFF & Flush all SMQ's. HRM mandates
+        * all SQ's empty before SMQ flush is issued.
+        */
+       TAILQ_FOREACH(node, list, node) {
+               if (node->hw_lvl != NIX_TXSCH_LVL_SMQ)
+                       continue;
+               if (!(node->flags & NIX_TM_NODE_HWRES))
+                       continue;
+
+               rc = nix_tm_smq_xoff(nix, node, true);
+               if (rc) {
+                       plt_err("Failed to enable smq %u, rc=%d", node->hw_id,
+                               rc);
+                       goto exit;
+               }
+       }
+
+       /* XON all SMQ's */
+       TAILQ_FOREACH(node, list, node) {
+               if (node->hw_lvl != NIX_TXSCH_LVL_SMQ)
+                       continue;
+               if (!(node->flags & NIX_TM_NODE_HWRES))
+                       continue;
+
+               rc = nix_tm_smq_xoff(nix, node, false);
+               if (rc) {
+                       plt_err("Failed to enable smq %u, rc=%d", node->hw_id,
+                               rc);
+                       goto exit;
+               }
+       }
+exit:
+       return rc;
+}
+
 int
 roc_nix_tm_hierarchy_disable(struct roc_nix *roc_nix)
 {

diff --git a/drivers/common/cnxk/version.map b/drivers/common/cnxk/version.map
index 5df2e56ce6dcfa619ac8763bb5e10cc15eba1803..388f9385e02be0c5f2b9c015a52fd9b3b4b088d6 100644 (file)
--- a/drivers/common/cnxk/version.map
+++ b/drivers/common/cnxk/version.map
@@ -170,6 +170,7 @@ INTERNAL {
        roc_nix_xstats_names_get;
        roc_nix_switch_hdr_set;
        roc_nix_eeprom_info_get;
+       roc_nix_smq_flush;
        roc_nix_tm_dump;
        roc_nix_tm_fini;
        roc_nix_tm_free_resources;