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| author | Vishal Kulkarni <vishal@chelsio.com> | 2019-02-14 18:19:15 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-02-14 12:39:35 -0500 |
| commit | d429005fdf2c9da19429c8b343eea61bd55b7c00 (patch) | |
| tree | 8d94d8f4c846736890f292bd136df5455d1ac7c2 /drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | |
| parent | f694be27b7c0f31e926277dbde4395d56e79f36e (diff) | |
| download | linux-d429005fdf2c9da19429c8b343eea61bd55b7c00.tar.gz linux-d429005fdf2c9da19429c8b343eea61bd55b7c00.tar.bz2 linux-d429005fdf2c9da19429c8b343eea61bd55b7c00.zip | |
cxgb4/cxgb4vf: Add support for SGE doorbell queue timer
T6 introduced a Timer Mechanism in SGE called the
SGE Doorbell Queue Timer. With this we can now configure
TX Queues to get CIDX Updates when:
Time(CIDX == PIDX) >= Timer
Previously we rely on TX Queue Status Page updates by hardware
for DMA completions. This will make Hardware/Firmware actually
deliver the CIDX Updates as Ingress Queue messages with
commensurate Interrupts.
So we now have a new RX Path component for processing CIDX Updates
and reclaiming TX Descriptors faster.
Original work by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Vishal Kulkarni <vishal@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 568715a13b5c..68d0d453eb06 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -617,6 +617,7 @@ enum { /* adapter flags */ FW_OFLD_CONN = (1 << 9), ROOT_NO_RELAXED_ORDERING = (1 << 10), SHUTTING_DOWN = (1 << 11), + SGE_DBQ_TIMER = (1 << 12), }; enum { @@ -756,6 +757,8 @@ struct sge_eth_txq { /* state for an SGE Ethernet Tx queue */ #ifdef CONFIG_CHELSIO_T4_DCB u8 dcb_prio; /* DCB Priority bound to queue */ #endif + u8 dbqt; /* SGE Doorbell Queue Timer in use */ + unsigned int dbqtimerix; /* SGE Doorbell Queue Timer Index */ unsigned long tso; /* # of TSO requests */ unsigned long tx_cso; /* # of Tx checksum offloads */ unsigned long vlan_ins; /* # of Tx VLAN insertions */ @@ -816,6 +819,7 @@ struct sge { u16 nqs_per_uld; /* # of Rx queues per ULD */ u16 timer_val[SGE_NTIMERS]; u8 counter_val[SGE_NCOUNTERS]; + u16 dbqtimer_val[SGE_NDBQTIMERS]; u32 fl_pg_order; /* large page allocation size */ u32 stat_len; /* length of status page at ring end */ u32 pktshift; /* padding between CPL & packet data */ @@ -1402,7 +1406,7 @@ int t4_sge_alloc_rxq(struct adapter *adap, struct sge_rspq *iq, bool fwevtq, rspq_flush_handler_t flush_handler, int cong); int t4_sge_alloc_eth_txq(struct adapter *adap, struct sge_eth_txq *txq, struct net_device *dev, struct netdev_queue *netdevq, - unsigned int iqid); + unsigned int iqid, u8 dbqt); int t4_sge_alloc_ctrl_txq(struct adapter *adap, struct sge_ctrl_txq *txq, struct net_device *dev, unsigned int iqid, unsigned int cmplqid); @@ -1415,6 +1419,8 @@ irqreturn_t t4_sge_intr_msix(int irq, void *cookie); int t4_sge_init(struct adapter *adap); void t4_sge_start(struct adapter *adap); void t4_sge_stop(struct adapter *adap); +int t4_sge_eth_txq_egress_update(struct adapter *adap, struct sge_eth_txq *q, + int maxreclaim); void cxgb4_set_ethtool_ops(struct net_device *netdev); int cxgb4_write_rss(const struct port_info *pi, const u16 *queues); enum cpl_tx_tnl_lso_type cxgb_encap_offload_supported(struct sk_buff *skb); @@ -1821,6 +1827,8 @@ int t4_ctrl_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, int t4_ofld_eq_free(struct adapter *adap, unsigned int mbox, unsigned int pf, unsigned int vf, unsigned int eqid); int t4_sge_ctxt_flush(struct adapter *adap, unsigned int mbox, int ctxt_type); +int t4_read_sge_dbqtimers(struct adapter *adap, unsigned int ndbqtimers, + u16 *dbqtimers); void t4_handle_get_port_info(struct port_info *pi, const __be64 *rpl); int t4_update_port_info(struct port_info *pi); int t4_get_link_params(struct port_info *pi, unsigned int *link_okp, |