net/qede/base: add API to update FW RSS indirection table

Added ecore_update_eth_rss_ind_table_entry() api to update FW RSS
indirection table entry according to new interface of FW 8.37.x.x.

Signed-off-by: Rasesh Mody <rasesh.mody@cavium.com>

diff --git a/drivers/net/qede/base/ecore_l2.c b/drivers/net/qede/base/ecore_l2.c
index ec40aac..d87ffda 100644 (file)
--- a/drivers/net/qede/base/ecore_l2.c
+++ b/drivers/net/qede/base/ecore_l2.c
@@ -2323,3 +2323,55 @@ ecore_eth_tx_queue_maxrate(struct ecore_hwfn *p_hwfn,
        return ecore_init_vport_rl(p_hwfn, p_ptt, vport, rate,
                                   p_link->speed);
 }
+
+#define RSS_TSTORM_UPDATE_STATUS_MAX_POLL_COUNT    100
+#define RSS_TSTORM_UPDATE_STATUS_POLL_PERIOD_US    1
+
+enum _ecore_status_t
+ecore_update_eth_rss_ind_table_entry(struct ecore_hwfn *p_hwfn,
+                                    u8 vport_id,
+                                    u8 ind_table_index,
+                                    u16 ind_table_value)
+{
+       struct eth_tstorm_rss_update_data update_data = { 0 };
+       void OSAL_IOMEM *addr = OSAL_NULL;
+       enum _ecore_status_t rc;
+       u8 abs_vport_id;
+       u32 cnt = 0;
+
+       OSAL_BUILD_BUG_ON(sizeof(update_data) != sizeof(u64));
+
+       rc = ecore_fw_vport(p_hwfn, vport_id, &abs_vport_id);
+       if (rc != ECORE_SUCCESS)
+               return rc;
+
+       addr = (u8 OSAL_IOMEM *)p_hwfn->regview +
+              GTT_BAR0_MAP_REG_TSDM_RAM +
+              TSTORM_ETH_RSS_UPDATE_OFFSET(p_hwfn->rel_pf_id);
+
+       *(u64 *)(&update_data) = DIRECT_REG_RD64(p_hwfn, addr);
+
+       for (cnt = 0; update_data.valid &&
+            cnt < RSS_TSTORM_UPDATE_STATUS_MAX_POLL_COUNT; cnt++) {
+               OSAL_UDELAY(RSS_TSTORM_UPDATE_STATUS_POLL_PERIOD_US);
+               *(u64 *)(&update_data) = DIRECT_REG_RD64(p_hwfn, addr);
+       }
+
+       if (update_data.valid) {
+               DP_NOTICE(p_hwfn, true,
+                         "rss update valid status is not clear! valid=0x%x vport id=%d ind_Table_idx=%d ind_table_value=%d.\n",
+                         update_data.valid, vport_id, ind_table_index,
+                         ind_table_value);
+
+               return ECORE_AGAIN;
+       }
+
+       update_data.valid           = 1;
+       update_data.ind_table_index = ind_table_index;
+       update_data.ind_table_value = ind_table_value;
+       update_data.vport_id        = abs_vport_id;
+
+       DIRECT_REG_WR64(p_hwfn, addr, *(u64 *)(&update_data));
+
+       return ECORE_SUCCESS;
+}

diff --git a/drivers/net/qede/base/ecore_l2_api.h b/drivers/net/qede/base/ecore_l2_api.h
index bde825c..21595f3 100644 (file)
--- a/drivers/net/qede/base/ecore_l2_api.h
+++ b/drivers/net/qede/base/ecore_l2_api.h
@@ -470,4 +470,28 @@ ecore_configure_rfs_ntuple_filter(struct ecore_hwfn *p_hwfn,
                                  dma_addr_t p_addr, u16 length,
                                  u16 qid, u8 vport_id,
                                  bool b_is_add);
+
+/**
+ * @brief - ecore_update_eth_rss_ind_table_entry
+ *
+ * This function being used to update RSS indirection table entry to FW RAM
+ * instead of using the SP vport update ramrod with rss params.
+ *
+ * Notice:
+ * This function supports only one outstanding command per engine. Ecore
+ * clients which use this function should call ecore_mcp_ind_table_lock() prior
+ * to it and ecore_mcp_ind_table_unlock() after it.
+ *
+ * @params p_hwfn
+ * @params vport_id
+ * @params ind_table_index
+ * @params ind_table_value
+ *
+ * @return enum _ecore_status_t
+ */
+enum _ecore_status_t
+ecore_update_eth_rss_ind_table_entry(struct ecore_hwfn *p_hwfn,
+                                    u8 vport_id,
+                                    u8 ind_table_index,
+                                    u16 ind_table_value);
 #endif