net/af_xdp: support power monitoring

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

diff --git a/drivers/net/cxgbe/mps_tcam.c b/drivers/net/cxgbe/mps_tcam.c
index 02ec69a..abbf06e 100644 (file)
--- a/drivers/net/cxgbe/mps_tcam.c
+++ b/drivers/net/cxgbe/mps_tcam.c
@@ -8,8 +8,8 @@
 static inline bool
 match_entry(struct mps_tcam_entry *entry, const u8 *eth_addr, const u8 *mask)
 {
-       if (!memcmp(eth_addr, entry->eth_addr, ETHER_ADDR_LEN) &&
-           !memcmp(mask, entry->mask, ETHER_ADDR_LEN))
+       if (!memcmp(eth_addr, entry->eth_addr, RTE_ETHER_ADDR_LEN) &&
+           !memcmp(mask, entry->mask, RTE_ETHER_ADDR_LEN))
                return true;
        return false;
 }
@@ -49,7 +49,8 @@ cxgbe_mpstcam_lookup(struct mpstcam_table *t, const u8 *eth_addr,
                return NULL;
 
        for (i = 0; i < t->size; i++) {
-               if (entry[i].state == MPS_ENTRY_UNUSED)
+               if (entry[i].state == MPS_ENTRY_UNUSED ||
+                   entry[i].state == MPS_ENTRY_RAWF)
                        continue;       /* entry is not being used */
                if (match_entry(&entry[i], eth_addr, mask))
                        return &entry[i];
@@ -75,7 +76,7 @@ int cxgbe_mpstcam_alloc(struct port_info *pi, const u8 *eth_addr,
        t4_os_write_lock(&mpstcam->lock);
        entry = cxgbe_mpstcam_lookup(adap->mpstcam, eth_addr, mask);
        if (entry) {
-               rte_atomic32_add(&entry->refcnt, 1);
+               __atomic_add_fetch(&entry->refcnt, 1, __ATOMIC_RELAXED);
                t4_os_write_unlock(&mpstcam->lock);
                return entry->idx;
        }
@@ -95,9 +96,9 @@ int cxgbe_mpstcam_alloc(struct port_info *pi, const u8 *eth_addr,
 
        /* Fill in the new values */
        entry = &mpstcam->entry[ret];
-       memcpy(entry->eth_addr, eth_addr, ETHER_ADDR_LEN);
-       memcpy(entry->mask, mask, ETHER_ADDR_LEN);
-       rte_atomic32_set(&entry->refcnt, 1);
+       memcpy(entry->eth_addr, eth_addr, RTE_ETHER_ADDR_LEN);
+       memcpy(entry->mask, mask, RTE_ETHER_ADDR_LEN);
+       __atomic_store_n(&entry->refcnt, 1, __ATOMIC_RELAXED);
        entry->state = MPS_ENTRY_USED;
 
        if (cxgbe_update_free_idx(mpstcam))
@@ -139,13 +140,14 @@ int cxgbe_mpstcam_modify(struct port_info *pi, int idx, const u8 *addr)
 
        /* idx can now be different from what user provided */
        entry = &mpstcam->entry[idx];
-       memcpy(entry->eth_addr, addr, ETHER_ADDR_LEN);
+       memcpy(entry->eth_addr, addr, RTE_ETHER_ADDR_LEN);
+       memset(entry->mask, ~0, RTE_ETHER_ADDR_LEN);
        /* NOTE: we have considered the case that idx returned by t4_change_mac
         * will be different from the user provided value only if user
         * provided value is -1
         */
        if (entry->state == MPS_ENTRY_UNUSED) {
-               rte_atomic32_set(&entry->refcnt, 1);
+               __atomic_store_n(&entry->refcnt, 1, __ATOMIC_RELAXED);
                entry->state = MPS_ENTRY_USED;
        }
 
@@ -161,9 +163,9 @@ int cxgbe_mpstcam_modify(struct port_info *pi, int idx, const u8 *addr)
  */
 static inline void reset_mpstcam_entry(struct mps_tcam_entry *entry)
 {
-       memset(entry->eth_addr, 0, ETHER_ADDR_LEN);
-       memset(entry->mask, 0, ETHER_ADDR_LEN);
-       rte_atomic32_clear(&entry->refcnt);
+       memset(entry->eth_addr, 0, RTE_ETHER_ADDR_LEN);
+       memset(entry->mask, 0, RTE_ETHER_ADDR_LEN);
+       __atomic_store_n(&entry->refcnt, 0, __ATOMIC_RELAXED);
        entry->state = MPS_ENTRY_UNUSED;
 }
 
@@ -183,17 +185,17 @@ int cxgbe_mpstcam_remove(struct port_info *pi, u16 idx)
                return -EOPNOTSUPP;
        t4_os_write_lock(&t->lock);
        entry = &t->entry[idx];
-       if (entry->state == MPS_ENTRY_UNUSED) {
+       if (entry->state != MPS_ENTRY_USED) {
                t4_os_write_unlock(&t->lock);
                return -EINVAL;
        }
 
-       if (rte_atomic32_read(&entry->refcnt) == 1)
+       if (__atomic_load_n(&entry->refcnt, __ATOMIC_RELAXED) == 1)
                ret = t4_free_raw_mac_filt(adap, pi->viid, entry->eth_addr,
                                           entry->mask, idx, 1, pi->port_id,
                                           false);
        else
-               ret = rte_atomic32_sub_return(&entry->refcnt, 1);
+               ret = __atomic_sub_fetch(&entry->refcnt, 1, __ATOMIC_RELAXED);
 
        if (ret == 0) {
                reset_mpstcam_entry(entry);
@@ -205,11 +207,73 @@ int cxgbe_mpstcam_remove(struct port_info *pi, u16 idx)
        return ret;
 }
 
+int cxgbe_mpstcam_rawf_enable(struct port_info *pi)
+{
+       struct adapter *adap = pi->adapter;
+       struct mps_tcam_entry *entry;
+       struct mpstcam_table *t;
+       u16 rawf_idx;
+       int ret = 0;
+
+       t = adap->mpstcam;
+       if (adap->params.rawf_size == 0 || t == NULL)
+               return -EOPNOTSUPP;
+
+       t4_os_write_lock(&t->lock);
+       rawf_idx = adap->params.rawf_start + pi->port_id;
+       entry = &t->entry[rawf_idx];
+       if (__atomic_load_n(&entry->refcnt, __ATOMIC_RELAXED) == 1)
+               goto out_unlock;
+
+       ret = t4_alloc_raw_mac_filt(adap, pi->viid, entry->eth_addr,
+                                   entry->mask, rawf_idx, 0, pi->port_id,
+                                   false);
+       if (ret < 0)
+               goto out_unlock;
+
+       __atomic_store_n(&entry->refcnt, 1, __ATOMIC_RELAXED);
+
+out_unlock:
+       t4_os_write_unlock(&t->lock);
+       return ret;
+}
+
+int cxgbe_mpstcam_rawf_disable(struct port_info *pi)
+{
+       struct adapter *adap = pi->adapter;
+       struct mps_tcam_entry *entry;
+       struct mpstcam_table *t;
+       u16 rawf_idx;
+       int ret = 0;
+
+       t = adap->mpstcam;
+       if (adap->params.rawf_size == 0 || t == NULL)
+               return -EOPNOTSUPP;
+
+       t4_os_write_lock(&t->lock);
+       rawf_idx = adap->params.rawf_start + pi->port_id;
+       entry = &t->entry[rawf_idx];
+       if (__atomic_load_n(&entry->refcnt, __ATOMIC_RELAXED) != 1)
+               goto out_unlock;
+
+       ret = t4_free_raw_mac_filt(adap, pi->viid, entry->eth_addr,
+                                  entry->mask, rawf_idx, 0, pi->port_id,
+                                  false);
+       if (ret < 0)
+               goto out_unlock;
+
+       __atomic_store_n(&entry->refcnt, 0, __ATOMIC_RELAXED);
+
+out_unlock:
+       t4_os_write_unlock(&t->lock);
+       return ret;
+}
+
 struct mpstcam_table *t4_init_mpstcam(struct adapter *adap)
 {
+       u16 size = adap->params.arch.mps_tcam_size;
        struct mpstcam_table *t;
        int i;
-       u16 size = adap->params.arch.mps_tcam_size;
 
        t =  t4_os_alloc(sizeof(*t) + size * sizeof(struct mps_tcam_entry));
        if (!t)
@@ -225,6 +289,12 @@ struct mpstcam_table *t4_init_mpstcam(struct adapter *adap)
                t->entry[i].idx = i;
        }
 
+       /* RAW MAC entries are reserved for match-all wildcard to
+        * match all promiscuous traffic. So, mark them special.
+        */
+       for (i = 0; i < adap->params.rawf_size; i++)
+               t->entry[adap->params.rawf_start + i].state = MPS_ENTRY_RAWF;
+
        /* first entry is used by chip. this is overwritten only
         * in t4_cleanup_mpstcam()
         */
@@ -236,8 +306,6 @@ struct mpstcam_table *t4_init_mpstcam(struct adapter *adap)
 
 void t4_cleanup_mpstcam(struct adapter *adap)
 {
-       if (adap->mpstcam) {
-               t4_os_free(adap->mpstcam->entry);
+       if (adap->mpstcam)
                t4_os_free(adap->mpstcam);
-       }
 }