cxgb4: Differentiates between TIDs being used in TCAM and HASH
For the tid info, differentiate from which region the TID is allocated
from. It can be from TCAM region or HASH region.
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
index b27897d..f61fed1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h
@@ -96,6 +96,7 @@
unsigned long *stid_bmap;
unsigned int nstids;
unsigned int stid_base;
+ unsigned int hash_base;
union aopen_entry *atid_tab;
unsigned int natids;
@@ -117,7 +118,10 @@
spinlock_t stid_lock;
unsigned int stids_in_use;
+ /* TIDs in the TCAM */
atomic_t tids_in_use;
+ /* TIDs in the HASH */
+ atomic_t hash_tids_in_use;
};
static inline void *lookup_tid(const struct tid_info *t, unsigned int tid)
@@ -147,7 +151,10 @@
unsigned int tid)
{
t->tid_tab[tid] = data;
- atomic_inc(&t->tids_in_use);
+ if (t->hash_base && (tid >= t->hash_base))
+ atomic_inc(&t->hash_tids_in_use);
+ else
+ atomic_inc(&t->tids_in_use);
}
int cxgb4_alloc_atid(struct tid_info *t, void *data);