7d8194517a
Sync some patches for hns3 PMD, telemetry and testpmd. And main modifications are as follows: - backport some bugfixes for hns3 - revert Tx performance optimization for hns3 - add Rx/Tx descriptor dump feature for hns3 - refactor some RSS commands for testpmd - add ethdev telemetry private dump - add dmadev telemetry - sync telemetry lib Signed-off-by: Huisong Li <lihuisong@huawei.com> (cherry picked from commit 4f06d27eff9aa99c2e2073ac74328893990ed8ed)
53 lines
2.0 KiB
Diff
53 lines
2.0 KiB
Diff
From fe5e02e38e96e0b6ac33fd56a0f0b8cbad30b66f Mon Sep 17 00:00:00 2001
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From: Huisong Li <lihuisong@huawei.com>
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Date: Fri, 21 Oct 2022 15:36:01 +0800
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Subject: [PATCH 125/189] net/hns3: fix link status capability query from VF
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Currently, the VF LSC capability is obtained from PF driver in
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the interrupt mailbox interrupt thread, it is asynchronous.
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The VF driver waits for 500ms to get this capability in probe
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process.
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The primary process will receive a message and do probe in the
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interrupt thread context when attach a device in the secondary
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process. At this case, VF driver never obtains this capability
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from PF.
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The root cause is that 'vf->pf_push_lsc_cap' is not updated by
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the handling mailbox thread until finishing probe. The reason
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this update wouldn't be done is that the handling mailbox interrupt
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thread and the probe alarm thread are both in epool thread, and
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the probe alarm thread is before the mailbox interrupt thread.
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Fixes: 9bc2289fe5ea ("net/hns3: refactor VF LSC event report")
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Cc: stable@dpdk.org
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Signed-off-by: Huisong Li <lihuisong@huawei.com>
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Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
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---
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drivers/net/hns3/hns3_ethdev_vf.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/drivers/net/hns3/hns3_ethdev_vf.c b/drivers/net/hns3/hns3_ethdev_vf.c
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index 7323e47f15..b85f68cb1d 100644
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--- a/drivers/net/hns3/hns3_ethdev_vf.c
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+++ b/drivers/net/hns3/hns3_ethdev_vf.c
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@@ -778,6 +778,14 @@ hns3vf_get_push_lsc_cap(struct hns3_hw *hw)
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while (remain_ms > 0) {
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rte_delay_ms(HNS3_POLL_RESPONE_MS);
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+ /*
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+ * The probe process may perform in interrupt thread context.
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+ * For example, users attach a device in the secondary process.
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+ * At the moment, the handling mailbox task will be blocked. So
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+ * driver has to actively handle the HNS3_MBX_LINK_STAT_CHANGE
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+ * mailbox from PF driver to get this capability.
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+ */
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+ hns3_dev_handle_mbx_msg(hw);
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if (__atomic_load_n(&vf->pf_push_lsc_cap, __ATOMIC_ACQUIRE) !=
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HNS3_PF_PUSH_LSC_CAP_UNKNOWN)
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break;
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--
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2.23.0
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