From: Oded Gabbay <ogabbay@kernel.org>
To: linux-kernel@vger.kernel.org
Cc: Ofir Bitton <obitton@habana.ai>
Subject: [PATCH 1/3] habanalabs: zero pci counters packet before submit to FW
Date: Mon, 18 Jan 2021 20:52:15 +0200 [thread overview]
Message-ID: <20210118185217.4389-1-ogabbay@kernel.org> (raw)
From: Ofir Bitton <obitton@habana.ai>
Driver does not zero some pci counters packets before sending
to FW. This causes an out of sync PI/CI between driver and FW.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
---
drivers/misc/habanalabs/common/firmware_if.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/misc/habanalabs/common/firmware_if.c b/drivers/misc/habanalabs/common/firmware_if.c
index 20f77f58edef..c9a12980218a 100644
--- a/drivers/misc/habanalabs/common/firmware_if.c
+++ b/drivers/misc/habanalabs/common/firmware_if.c
@@ -402,6 +402,10 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
}
counters->rx_throughput = result;
+ memset(&pkt, 0, sizeof(pkt));
+ pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_THROUGHPUT_GET <<
+ CPUCP_PKT_CTL_OPCODE_SHIFT);
+
/* Fetch PCI tx counter */
pkt.index = cpu_to_le32(cpucp_pcie_throughput_tx);
rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
@@ -414,6 +418,7 @@ int hl_fw_cpucp_pci_counters_get(struct hl_device *hdev,
counters->tx_throughput = result;
/* Fetch PCI replay counter */
+ memset(&pkt, 0, sizeof(pkt));
pkt.ctl = cpu_to_le32(CPUCP_PACKET_PCIE_REPLAY_CNT_GET <<
CPUCP_PKT_CTL_OPCODE_SHIFT);
--
2.25.1
next reply other threads:[~2021-01-18 18:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-18 18:52 Oded Gabbay [this message]
2021-01-18 18:52 ` [PATCH 2/3] habanalabs: fix backward compatibility of idle check Oded Gabbay
2021-01-18 18:52 ` [PATCH 3/3] habanalabs: disable FW events on device removal Oded Gabbay
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