liquidio: Napi rx/tx traffic
This Patch adds tx buffer handling to Napi along with RX
traffic. Also separate spinlocks are introduced for handling
iq posting and buffer reclaim so that tx path and tx interrupt
do not compete against each other.
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Raghu Vatsavayi <rvatsavayi@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_iq.h b/drivers/net/ethernet/cavium/liquidio/octeon_iq.h
index 7c275ef..69d5b91 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_iq.h
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_iq.h
@@ -80,6 +80,12 @@
/** A spinlock to protect access to the input ring. */
spinlock_t lock;
+ /** A spinlock to protect while posting on the ring. */
+ spinlock_t post_lock;
+
+ /** A spinlock to protect access to the input ring.*/
+ spinlock_t iq_flush_running_lock;
+
/** Flag that indicates if the queue uses 64 byte commands. */
u32 iqcmd_64B:1;
@@ -339,7 +345,7 @@
int
lio_process_iq_request_list(struct octeon_device *oct,
- struct octeon_instr_queue *iq);
+ struct octeon_instr_queue *iq, u32 napi_budget);
int octeon_send_command(struct octeon_device *oct, u32 iq_no,
u32 force_db, void *cmd, void *buf,
@@ -357,5 +363,7 @@
int octeon_setup_iq(struct octeon_device *oct, int ifidx,
int q_index, union oct_txpciq iq_no, u32 num_descs,
void *app_ctx);
-
+int
+octeon_flush_iq(struct octeon_device *oct, struct octeon_instr_queue *iq,
+ u32 pending_thresh, u32 napi_budget);
#endif /* __OCTEON_IQ_H__ */