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-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index f4f46fcea7b7..f9ca36c25677 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -2986,7 +2986,14 @@ int cxgb4_alloc_stid(struct tid_info *t, int family, void *data)
if (stid >= 0) {
t->stid_tab[stid].data = data;
stid += t->stid_base;
- t->stids_in_use++;
+ /* IPv6 requires max of 520 bits or 16 cells in TCAM
+ * This is equivalent to 4 TIDs. With CLIP enabled it
+ * needs 2 TIDs.
+ */
+ if (family == PF_INET)
+ t->stids_in_use++;
+ else
+ t->stids_in_use += 4;
}
spin_unlock_bh(&t->stid_lock);
return stid;
@@ -3039,7 +3046,10 @@ void cxgb4_free_stid(struct tid_info *t, unsigned int stid, int family)
else
bitmap_release_region(t->stid_bmap, stid, 2);
t->stid_tab[stid].data = NULL;
- t->stids_in_use--;
+ if (family == PF_INET)
+ t->stids_in_use--;
+ else
+ t->stids_in_use -= 4;
spin_unlock_bh(&t->stid_lock);
}
EXPORT_SYMBOL(cxgb4_free_stid);