From: Radu Nicolau <radu.nicolau@intel.com>
To: dev@dpdk.org
Cc: beilei.xing@intel.com, jia.guo@intel.com,
bruce.richardson@intel.com, konstantin.ananyev@intel.com,
jerinjacobk@gmail.com, david.marchand@redhat.com,
fiona.trahe@intel.com, wei.zhao1@intel.com,
Radu Nicolau <radu.nicolau@intel.com>
Subject: [dpdk-dev] [PATCH v6 4/4] net/ixgbe: use WC store to update doorbell register
Date: Mon, 13 Jul 2020 13:27:27 +0100 [thread overview]
Message-ID: <1594643247-11094-5-git-send-email-radu.nicolau@intel.com> (raw)
In-Reply-To: <1594643247-11094-1-git-send-email-radu.nicolau@intel.com>
Performance improvement: use a write combining store
instead of a regular mmio write to update queue tail
registers.
Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
---
drivers/net/ixgbe/base/ixgbe_osdep.h | 6 ++++++
drivers/net/ixgbe/ixgbe_rxtx.c | 4 ++--
drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c | 4 ++--
3 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ixgbe/base/ixgbe_osdep.h b/drivers/net/ixgbe/base/ixgbe_osdep.h
index dc712b7..cacf724 100644
--- a/drivers/net/ixgbe/base/ixgbe_osdep.h
+++ b/drivers/net/ixgbe/base/ixgbe_osdep.h
@@ -105,6 +105,12 @@ static inline uint32_t ixgbe_read_addr(volatile void* addr)
#define IXGBE_PCI_REG_WRITE_RELAXED(reg, value) \
rte_write32_relaxed((rte_cpu_to_le_32(value)), reg)
+#define IXGBE_PCI_REG_WC_WRITE(reg, value) \
+ rte_write32_wc((rte_cpu_to_le_32(value)), reg)
+
+#define IXGBE_PCI_REG_WC_WRITE_RELAXED(reg, value) \
+ rte_write32_wc_relaxed((rte_cpu_to_le_32(value)), reg)
+
#define IXGBE_PCI_REG_ADDR(hw, reg) \
((volatile uint32_t *)((char *)(hw)->hw_addr + (reg)))
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 2e20e18..06e8dd5 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -308,7 +308,7 @@ tx_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
/* update tail pointer */
rte_wmb();
- IXGBE_PCI_REG_WRITE_RELAXED(txq->tdt_reg_addr, txq->tx_tail);
+ IXGBE_PCI_REG_WC_WRITE_RELAXED(txq->tdt_reg_addr, txq->tx_tail);
return nb_pkts;
}
@@ -1918,7 +1918,7 @@ ixgbe_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
(unsigned) nb_rx);
rx_id = (uint16_t) ((rx_id == 0) ?
(rxq->nb_rx_desc - 1) : (rx_id - 1));
- IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
+ IXGBE_PCI_REG_WC_WRITE(rxq->rdt_reg_addr, rx_id);
nb_hold = 0;
}
rxq->nb_rx_hold = nb_hold;
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
index 517ca31..e77a7f3 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
@@ -90,7 +90,7 @@ ixgbe_rxq_rearm(struct ixgbe_rx_queue *rxq)
(rxq->nb_rx_desc - 1) : (rxq->rxrearm_start - 1));
/* Update the tail pointer on the NIC */
- IXGBE_PCI_REG_WRITE(rxq->rdt_reg_addr, rx_id);
+ IXGBE_PCI_REG_WC_WRITE(rxq->rdt_reg_addr, rx_id);
}
#ifdef RTE_LIBRTE_SECURITY
@@ -697,7 +697,7 @@ ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
txq->tx_tail = tx_id;
- IXGBE_PCI_REG_WRITE(txq->tdt_reg_addr, txq->tx_tail);
+ IXGBE_PCI_REG_WC_WRITE(txq->tdt_reg_addr, txq->tx_tail);
return nb_pkts;
}
--
2.7.4
next prev parent reply other threads:[~2020-07-13 12:28 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-11 10:11 [dpdk-dev] [PATCH v1 1/2] eal/x86: add WC store function Radu Nicolau
2020-06-11 10:11 ` [dpdk-dev] [PATCH v1 2/2] net/i40e: use movdiri to update queue tail registers Radu Nicolau
2020-06-11 12:23 ` [dpdk-dev] [PATCH v1 1/2] eal/x86: add WC store function Jerin Jacob
2020-06-11 13:56 ` Nicolau, Radu
2020-06-11 15:33 ` Jerin Jacob
2020-06-15 11:11 ` Ananyev, Konstantin
2020-06-19 12:06 ` [dpdk-dev] [PATCH v2 1/2] eal: add WC store functions Radu Nicolau
2020-06-19 12:06 ` [dpdk-dev] [PATCH v2 2/2] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-01 13:15 ` Bruce Richardson
2020-07-01 13:14 ` [dpdk-dev] [PATCH v2 1/2] eal: add WC store functions Bruce Richardson
2020-07-01 14:15 ` [dpdk-dev] [PATCH v3 0/2] " Radu Nicolau
2020-07-01 14:15 ` [dpdk-dev] [PATCH v3 1/2] " Radu Nicolau
2020-07-01 14:15 ` [dpdk-dev] [PATCH v3 2/2] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-02 9:23 ` [dpdk-dev] [PATCH v4 0/2] eal: add WC store functions Radu Nicolau
2020-07-02 9:23 ` [dpdk-dev] [PATCH v4 1/2] " Radu Nicolau
2020-07-03 15:19 ` David Marchand
2020-07-06 9:15 ` Nicolau, Radu
2020-07-02 9:23 ` [dpdk-dev] [PATCH v4 2/2] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-06 12:29 ` [dpdk-dev] [PATCH v5 0/2] eal: add WC store functions Radu Nicolau
2020-07-06 12:29 ` [dpdk-dev] [PATCH v5 1/2] " Radu Nicolau
2020-07-06 12:30 ` [dpdk-dev] [PATCH v5 2/2] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-13 12:27 ` [dpdk-dev] [PATCH v6 0/4] eal: add WC store functions Radu Nicolau
2020-07-13 12:27 ` [dpdk-dev] [PATCH v6 1/4] " Radu Nicolau
2020-07-13 12:27 ` [dpdk-dev] [PATCH v6 2/4] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-13 12:27 ` [dpdk-dev] [PATCH v6 3/4] qat: " Radu Nicolau
2020-07-13 12:44 ` Bruce Richardson
2020-07-13 12:52 ` Trahe, Fiona
2020-07-13 12:57 ` Bruce Richardson
2020-07-13 12:27 ` Radu Nicolau [this message]
2020-07-16 12:29 ` [dpdk-dev] [PATCH v7 0/4] eal: add WC store functions Radu Nicolau
2020-07-16 12:29 ` [dpdk-dev] [PATCH v7 1/4] " Radu Nicolau
2020-07-16 12:29 ` [dpdk-dev] [PATCH v7 2/4] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-16 12:29 ` [dpdk-dev] [PATCH v7 3/4] common/qat: " Radu Nicolau
2020-07-16 12:29 ` [dpdk-dev] [PATCH v7 4/4] net/ixgbe: use WC store to update doorbell register Radu Nicolau
2020-07-17 10:49 ` [dpdk-dev] [PATCH v8 0/4] eal: add WC store functions Radu Nicolau
2020-07-17 10:49 ` [dpdk-dev] [PATCH v8 1/4] " Radu Nicolau
2020-07-20 6:42 ` Ruifeng Wang
2020-07-20 8:52 ` Nicolau, Radu
2020-07-17 10:49 ` [dpdk-dev] [PATCH v8 2/4] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-20 6:46 ` Ruifeng Wang
2020-07-20 8:54 ` Nicolau, Radu
2020-07-17 10:49 ` [dpdk-dev] [PATCH v8 3/4] common/qat: " Radu Nicolau
2020-07-17 16:42 ` Trahe, Fiona
2020-07-17 10:49 ` [dpdk-dev] [PATCH v8 4/4] net/ixgbe: " Radu Nicolau
2020-07-17 11:18 ` Ananyev, Konstantin
2020-07-20 9:12 ` [dpdk-dev] [PATCH v9 0/4] eal: add WC store functions Radu Nicolau
2020-07-20 9:12 ` [dpdk-dev] [PATCH v9 1/4] " Radu Nicolau
2020-07-20 12:20 ` David Marchand
2020-07-21 8:56 ` Nicolau, Radu
2020-07-20 9:12 ` [dpdk-dev] [PATCH v9 2/4] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-20 9:12 ` [dpdk-dev] [PATCH v9 3/4] common/qat: " Radu Nicolau
2020-07-20 9:12 ` [dpdk-dev] [PATCH v9 4/4] net/ixgbe: " Radu Nicolau
2020-07-21 11:31 ` [dpdk-dev] [PATCH v10 0/4] eal: add WC store functions Radu Nicolau
2020-07-21 11:31 ` [dpdk-dev] [PATCH v10 1/4] " Radu Nicolau
2020-07-21 11:31 ` [dpdk-dev] [PATCH v10 2/4] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-07-21 11:31 ` [dpdk-dev] [PATCH v10 3/4] common/qat: " Radu Nicolau
2020-07-21 11:31 ` [dpdk-dev] [PATCH v10 4/4] net/ixgbe: " Radu Nicolau
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 0/5] eal: add WC store functions Radu Nicolau
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 1/5] " Radu Nicolau
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 2/5] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-09-23 1:19 ` Lu, Wenzhuo
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 3/5] common/qat: " Radu Nicolau
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 4/5] net/ixgbe: " Radu Nicolau
2020-09-23 1:20 ` Lu, Wenzhuo
2020-08-26 9:55 ` [dpdk-dev] [PATCH v11 5/5] net/ice: " Radu Nicolau
2020-09-23 1:20 ` Lu, Wenzhuo
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 0/5] eal: add WC store functions Radu Nicolau
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 1/5] " Radu Nicolau
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 2/5] net/i40e: use WC store to update queue tail registers Radu Nicolau
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 3/5] common/qat: " Radu Nicolau
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 4/5] net/ixgbe: " Radu Nicolau
2020-09-23 14:22 ` [dpdk-dev] [PATCH v12 5/5] net/ice: " Radu Nicolau
2020-10-08 7:28 ` [dpdk-dev] [PATCH v12 0/5] eal: add WC store functions David Marchand
2020-10-08 9:51 ` Nicolau, Radu
2020-10-13 8:57 ` Ferruh Yigit
2020-10-13 12:50 ` David Marchand
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