From: Sathesh Edara <sedara@marvell.com>
To: <sburla@marvell.com>, <jerinj@marvell.com>, <sedara@marvell.com>,
"Radha Mohan Chintakuntla" <radhac@marvell.com>,
Veerasenareddy Burru <vburru@marvell.com>
Cc: <dev@dpdk.org>
Subject: [PATCH v2 09/10] net/octeon_ep: set watermark for output queues
Date: Wed, 5 Apr 2023 07:25:35 -0700 [thread overview]
Message-ID: <20230405142537.1899973-10-sedara@marvell.com> (raw)
In-Reply-To: <20230405142537.1899973-1-sedara@marvell.com>
This patch sets the watermark level for SDP
output queues to send backpressure to NIX,
when available Rx buffers fall below watermark.
Signed-off-by: Sathesh Edara <sedara@marvell.com>
---
drivers/net/octeon_ep/cnxk_ep_vf.c | 7 ++++++-
drivers/net/octeon_ep/otx_ep_common.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/octeon_ep/cnxk_ep_vf.c b/drivers/net/octeon_ep/cnxk_ep_vf.c
index cadb4ecbf9..92c2d2ca5c 100644
--- a/drivers/net/octeon_ep/cnxk_ep_vf.c
+++ b/drivers/net/octeon_ep/cnxk_ep_vf.c
@@ -245,7 +245,12 @@ cnxk_ep_vf_setup_oq_regs(struct otx_ep_device *otx_ep, uint32_t oq_no)
}
otx_ep_dbg("SDP_R[%d]_sent: %x", oq_no, rte_read32(droq->pkts_sent_reg));
- return 0;
+
+ /* Set Watermark for backpressure */
+ oct_ep_write64(OTX_EP_OQ_WMARK_MIN,
+ otx_ep->hw_addr + CNXK_EP_R_OUT_WMARK(oq_no));
+
+ return 0;
}
static int
diff --git a/drivers/net/octeon_ep/otx_ep_common.h b/drivers/net/octeon_ep/otx_ep_common.h
index 0bf5454a39..81d6857c52 100644
--- a/drivers/net/octeon_ep/otx_ep_common.h
+++ b/drivers/net/octeon_ep/otx_ep_common.h
@@ -23,6 +23,7 @@
#define OTX_EP_MAX_OQ_DESCRIPTORS (8192)
#define OTX_EP_OQ_BUF_SIZE (2048)
#define OTX_EP_MIN_RX_BUF_SIZE (64)
+#define OTX_EP_OQ_WMARK_MIN (256)
#define OTX_EP_OQ_INFOPTR_MODE (0)
#define OTX_EP_OQ_REFIL_THRESHOLD (16)
--
2.31.1
next prev parent reply other threads:[~2023-04-05 14:26 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-04 14:18 [PATCH v1 0/9] extend octeon ep driver functionality Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 1/9] net/octeon_ep: support cnf95n and cnf95o SoC Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 00/10] extend octeon ep driver functionality Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 01/10] net/octeon_ep: support cnf95n and cnf95o SoC Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 00/11] extend octeon ep driver functionality Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 01/11] net/octeon_ep: support cnf95n and cnf95o SoC Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 02/11] net/octeon_ep: support CNX10K series SoC Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 03/11] net/octeon_ep: support error propagation Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 04/11] net/octeon_ep: support IQ/OQ reset Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 05/11] devtools: add acronym in dictionary for commit checks Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 06/11] net/octeon_ep: support ISM Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 07/11] net/octeon_ep: flush pending DMA operations Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 08/11] net/octeon_ep: update queue size checks Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 09/11] net/octeon_ep: support mailbox between VF and PF Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 10/11] net/octeon_ep: set watermark for output queues Sathesh Edara
2023-04-24 12:28 ` [PATCH v3 11/11] net/octeon_ep: set secondary process dev ops Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 02/10] net/octeon_ep: support CNX10K series SoC Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 03/10] net/octeon_ep: support error propagation Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 04/10] net/octeon_ep: support IQ/OQ reset Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 05/10] net/octeon_ep: support ISM Sathesh Edara
2023-04-21 4:56 ` Jerin Jacob
2023-04-05 14:25 ` [PATCH v2 06/10] net/octeon_ep: fix DMA incompletion Sathesh Edara
2023-04-21 4:51 ` Jerin Jacob
2023-04-05 14:25 ` [PATCH v2 07/10] net/octeon_ep: update queue size checks Sathesh Edara
2023-04-05 14:25 ` [PATCH v2 08/10] net/octeon_ep: support Mailbox between VF and PF Sathesh Edara
2023-04-21 5:00 ` Jerin Jacob
2023-04-05 14:25 ` Sathesh Edara [this message]
2023-04-05 14:25 ` [PATCH v2 10/10] net/octeon_ep: set secondary process dev ops Sathesh Edara
2023-04-21 5:03 ` Jerin Jacob
2023-04-24 12:55 ` [PATCH v3 00/11] extend octeon ep driver functionality Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 01/11] net/octeon_ep: support cnf95n and cnf95o SoC Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 02/11] net/octeon_ep: support CNX10K series SoC Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 03/11] net/octeon_ep: support error propagation Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 04/11] net/octeon_ep: support IQ/OQ reset Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 05/11] devtools: add acronym in dictionary for commit checks Sathesh Edara
2023-05-03 7:16 ` Jerin Jacob
2023-04-24 12:55 ` [PATCH v3 06/11] net/octeon_ep: support ISM Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 07/11] net/octeon_ep: flush pending DMA operations Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 08/11] net/octeon_ep: update queue size checks Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 09/11] net/octeon_ep: support mailbox between VF and PF Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 10/11] net/octeon_ep: set watermark for output queues Sathesh Edara
2023-04-24 12:55 ` [PATCH v3 11/11] net/octeon_ep: set secondary process dev ops Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 2/9] net/octeon_ep: support CNX10K series SoC Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 3/9] net/octeon_ep: support error propagation Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 4/9] net/octeon_ep: support IQ/OQ reset Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 5/9] net/octeon_ep: support ISM Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 6/9] net/octeon_ep: fix DMA incompletion Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 7/9] net/octeon_ep: update queue size checks Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 8/9] net/octeon_ep: support Mailbox between VF and PF Sathesh Edara
2023-04-04 14:18 ` [PATCH v1 9/9] net/octeon_ep: set watermark for output queues Sathesh Edara
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