[dpdk-dev] [PATCH 22/53] net/sfc/base: provide simple access to RxQ state in EvQ

[Andrew Rybchenko <arybchenko@solarflare.com>]

From: Andrew Rybchenko <Andrew.Rybchenko@oktetlabs.ru>

Packed stream Rx datapath requires access to packed stream state
stored in event queue. Number of credits is upstead in event handler
on a new buffer, packets parsing on 64k boundary crossing and
Rx doorbell push to give credits back.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
---
 drivers/net/sfc/base/ef10_rx.c  | 8 ++++----
 drivers/net/sfc/base/efx_impl.h | 1 +
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/sfc/base/ef10_rx.c b/drivers/net/sfc/base/ef10_rx.c
index 6a301c1..534a06e 100644
--- a/drivers/net/sfc/base/ef10_rx.c
+++ b/drivers/net/sfc/base/ef10_rx.c
@@ -784,8 +784,7 @@ ef10_rx_qpush_ps_credits(
 {
 	efx_nic_t *enp = erp->er_enp;
 	efx_dword_t dword;
-	efx_evq_rxq_state_t *rxq_state =
-		&erp->er_eep->ee_rxq_state[erp->er_label];
+	efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
 	uint32_t credits;
 
 	EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
@@ -834,8 +833,7 @@ ef10_rx_qps_packet_info(
 	uint16_t buf_len;
 	uint8_t *pkt_start;
 	efx_qword_t *qwordp;
-	efx_evq_rxq_state_t *rxq_state =
-		&erp->er_eep->ee_rxq_state[erp->er_label];
+	efx_evq_rxq_state_t *rxq_state = erp->er_ev_qstate;
 
 	EFSYS_ASSERT(rxq_state->eers_rx_packed_stream);
 
@@ -994,6 +992,8 @@ ef10_rx_qcreate(
 
 	ef10_ev_rxlabel_init(eep, erp, label, type);
 
+	erp->er_ev_qstate = &erp->er_eep->ee_rxq_state[label];
+
 	return (0);
 
 fail6:
diff --git a/drivers/net/sfc/base/efx_impl.h b/drivers/net/sfc/base/efx_impl.h
index 1fd5c71..dabb65d 100644
--- a/drivers/net/sfc/base/efx_impl.h
+++ b/drivers/net/sfc/base/efx_impl.h
@@ -761,6 +761,7 @@ struct efx_rxq_s {
 	unsigned int			er_label;
 	unsigned int			er_mask;
 	efsys_mem_t			*er_esmp;
+	efx_evq_rxq_state_t		*er_ev_qstate;
 };
 
 #define	EFX_RXQ_MAGIC	0x15022005
-- 
2.7.4