net/cxgbe: support Source MAC Table

[dpdk.git] / drivers / net / cxgbe / cxgbe_main.c

diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
index a286d85..1ab6f8f 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_main.c
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -40,6 +40,7 @@
 #include "cxgbe_pfvf.h"
 #include "clip_tbl.h"
 #include "l2t.h"
+#include "smt.h"
 #include "mps_tcam.h"
 
 /**
@@ -1735,6 +1736,7 @@ void cxgbe_close(struct adapter *adapter)
                t4_cleanup_mpstcam(adapter);
                t4_cleanup_clip_tbl(adapter);
                t4_cleanup_l2t(adapter);
+               t4_cleanup_smt(adapter);
                if (is_pf4(adapter))
                        t4_intr_disable(adapter);
                t4_sge_tx_monitor_stop(adapter);
@@ -1753,13 +1755,45 @@ void cxgbe_close(struct adapter *adapter)
                t4_fw_bye(adapter, adapter->mbox);
 }
 
+static void adap_smt_index(struct adapter *adapter, u32 *smt_start_idx,
+                          u32 *smt_size)
+{
+       u32 params[2], smt_val[2];
+       int ret;
+
+       params[0] = CXGBE_FW_PARAM_PFVF(GET_SMT_START);
+       params[1] = CXGBE_FW_PARAM_PFVF(GET_SMT_SIZE);
+
+       ret = t4_query_params(adapter, adapter->mbox, adapter->pf, 0,
+                             2, params, smt_val);
+
+       /* if FW doesn't recognize this command then set it to default setting
+        * which is start index as 0 and size as 256.
+        */
+       if (ret < 0) {
+               *smt_start_idx = 0;
+               *smt_size = SMT_SIZE;
+       } else {
+               *smt_start_idx = smt_val[0];
+               /* smt size can be zero, if nsmt is not yet configured in
+                * the config file or set as zero, then configure all the
+                * remaining entries to this PF itself.
+                */
+               if (!smt_val[1])
+                       *smt_size = SMT_SIZE - *smt_start_idx;
+               else
+                       *smt_size = smt_val[1];
+       }
+}
+
 int cxgbe_probe(struct adapter *adapter)
 {
+       u32 smt_start_idx, smt_size;
        struct port_info *pi;
-       int chip;
        int func, i;
        int err = 0;
        u32 whoami;
+       int chip;
 
        whoami = t4_read_reg(adapter, A_PL_WHOAMI);
        chip = t4_get_chip_type(adapter,
@@ -1904,6 +1938,11 @@ allocate_mac:
                dev_warn(adapter, "could not allocate CLIP. Continuing\n");
        }
 
+       adap_smt_index(adapter, &smt_start_idx, &smt_size);
+       adapter->smt = t4_init_smt(smt_start_idx, smt_size);
+       if (!adapter->smt)
+               dev_warn(adapter, "could not allocate SMT, continuing\n");
+
        adapter->l2t = t4_init_l2t(adapter->l2t_start, adapter->l2t_end);
        if (!adapter->l2t) {
                /* We tolerate a lack of L2T, giving up some functionality */