patches for DPDK stable branches
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From: Christian Ehrhardt <christian.ehrhardt@canonical.com>
To: Somnath Kotur <somnath.kotur@broadcom.com>
Cc: Ajit Khaparde <ajit.khaparde@broadcom.com>,
	dpdk stable <stable@dpdk.org>
Subject: [dpdk-stable] patch 'net/bnxt: fix Rx timestamp when FIFO pending bit is set' has been queued to stable release 19.11.9
Date: Mon, 17 May 2021 18:21:08 +0200
Message-ID: <20210517162125.3178901-4-christian.ehrhardt@canonical.com> (raw)
In-Reply-To: <20210517162125.3178901-1-christian.ehrhardt@canonical.com>

Hi,

FYI, your patch has been queued to stable release 19.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/19/21. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/bf80db99953489ed4c2d626cc45fa26659260817

Thanks.

Christian Ehrhardt <christian.ehrhardt@canonical.com>

---
From bf80db99953489ed4c2d626cc45fa26659260817 Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@broadcom.com>
Date: Mon, 26 Apr 2021 11:37:55 +0530
Subject: [PATCH] net/bnxt: fix Rx timestamp when FIFO pending bit is set

[ upstream commit f8120fd07bf0ebdbcfa7e1a46c91df9d611ca940 ]

Fix to clear the Rx FIFO while reading the timestamp.
If the Rx FIFO has pending bit set, keep reading to clear it
and return the last valid timestamp instead of unconditionally
returning an error.

Fixes: b11cceb83a34 ("net/bnxt: support timesync")

Signed-off-by: Somnath Kotur <somnath.kotur@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
---
 drivers/net/bnxt/bnxt.h        |  1 +
 drivers/net/bnxt/bnxt_ethdev.c | 38 ++++++++++++++++++++++++++++++----
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bnxt/bnxt.h b/drivers/net/bnxt/bnxt.h
index 0a0ecaafa8..386d9c3cf0 100644
--- a/drivers/net/bnxt/bnxt.h
+++ b/drivers/net/bnxt/bnxt.h
@@ -271,6 +271,7 @@ struct rte_flow {
 	struct bnxt_vnic_info	*vnic;
 };
 
+#define BNXT_PTP_RX_PND_CNT		10
 #define BNXT_PTP_FLAGS_PATH_TX		0x0
 #define BNXT_PTP_FLAGS_PATH_RX		0x1
 #define BNXT_PTP_FLAGS_CURRENT_TIME	0x2
diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index 29330f5250..10ebf41241 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -3471,6 +3471,38 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
 	return 0;
 }
 
+static int bnxt_clr_rx_ts(struct bnxt *bp, uint64_t *last_ts)
+{
+	struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
+	struct bnxt_pf_info *pf = bp->pf;
+	uint16_t port_id;
+	int i = 0;
+	uint32_t fifo;
+
+	if (!ptp || (bp->flags & BNXT_FLAG_CHIP_P5))
+		return -EINVAL;
+
+	port_id = pf->port_id;
+	fifo = rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
+				ptp->rx_mapped_regs[BNXT_PTP_RX_FIFO]));
+	while ((fifo & BNXT_PTP_RX_FIFO_PENDING) && (i < BNXT_PTP_RX_PND_CNT)) {
+		rte_write32(1 << port_id, (uint8_t *)bp->bar0 +
+			    ptp->rx_mapped_regs[BNXT_PTP_RX_FIFO_ADV]);
+		fifo = rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
+					ptp->rx_mapped_regs[BNXT_PTP_RX_FIFO]));
+		*last_ts = rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
+					ptp->rx_mapped_regs[BNXT_PTP_RX_TS_L]));
+		*last_ts |= (uint64_t)rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
+					ptp->rx_mapped_regs[BNXT_PTP_RX_TS_H])) << 32;
+		i++;
+	}
+
+	if (i >= BNXT_PTP_RX_PND_CNT)
+		return -EBUSY;
+
+	return 0;
+}
+
 static int bnxt_get_rx_ts(struct bnxt *bp, uint64_t *ts)
 {
 	struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
@@ -3492,10 +3524,8 @@ static int bnxt_get_rx_ts(struct bnxt *bp, uint64_t *ts)
 
 	fifo = rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
 				   ptp->rx_mapped_regs[BNXT_PTP_RX_FIFO]));
-	if (fifo & BNXT_PTP_RX_FIFO_PENDING) {
-/*		bnxt_clr_rx_ts(bp);	  TBD  */
-		return -EBUSY;
-	}
+	if (fifo & BNXT_PTP_RX_FIFO_PENDING)
+		return bnxt_clr_rx_ts(bp, ts);
 
 	*ts = rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
 				ptp->rx_mapped_regs[BNXT_PTP_RX_TS_L]));
-- 
2.31.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-17 17:40:36.942708022 +0200
+++ 0193-net-bnxt-fix-Rx-timestamp-when-FIFO-pending-bit-is-s.patch	2021-05-17 17:40:29.555812501 +0200
@@ -1 +1 @@
-From f8120fd07bf0ebdbcfa7e1a46c91df9d611ca940 Mon Sep 17 00:00:00 2001
+From bf80db99953489ed4c2d626cc45fa26659260817 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit f8120fd07bf0ebdbcfa7e1a46c91df9d611ca940 ]
+
@@ -12 +13,0 @@
-Cc: stable@dpdk.org
@@ -22 +23 @@
-index bd2dec4d63..72513fe66b 100644
+index 0a0ecaafa8..386d9c3cf0 100644
@@ -25 +26 @@
-@@ -306,6 +306,7 @@ struct rte_flow {
+@@ -271,6 +271,7 @@ struct rte_flow {
@@ -34 +35 @@
-index dba5b9f94d..748b766969 100644
+index 29330f5250..10ebf41241 100644
@@ -37 +38 @@
-@@ -3390,6 +3390,38 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
+@@ -3471,6 +3471,38 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
@@ -76 +77 @@
-@@ -3408,10 +3440,8 @@ static int bnxt_get_rx_ts(struct bnxt *bp, uint64_t *ts)
+@@ -3492,10 +3524,8 @@ static int bnxt_get_rx_ts(struct bnxt *bp, uint64_t *ts)

  parent reply	other threads:[~2021-05-17 16:21 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-17 16:21 [dpdk-stable] patch 'test/distributor: fix burst flush on worker quit' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/virtio: fix vectorized Rx queue rearm' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: refactor multi-queue Rx configuration' " Christian Ehrhardt
2021-05-17 16:21 ` Christian Ehrhardt [this message]
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: fix dynamic VNIC count' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: fix single PF per port check' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: fix mismatched type comparison in MAC restore' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: check PCI config read' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'net/bnxt: prevent device access in error state' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'raw/ntb: check SPAD user index' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'raw/ntb: check memory allocations' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'ipc: check malloc sync reply result' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'eal: fix service core list parsing' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'app/bbdev: fix HARQ error messages' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'common/qat: increase IM buffer size for GEN3' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'compress/qat: enable compression on " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'test/crypto: fix auth-cipher compare length in OOP' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'crypto/dpaa_sec: affine the thread portal affinity' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'crypto/dpaa2_sec: fix close and uninit functions' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'test/crypto: copy offset data to OOP destination buffer' " Christian Ehrhardt
2021-05-17 16:21 ` [dpdk-stable] patch 'doc: fix build with Sphinx 4' " Christian Ehrhardt

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