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

[Andrew Rybchenko]

From: Andrew Rybchenko <andrew.rybche...@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 <arybche...@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