Hello:
This patch was applied to netdev/net.git (main) by David S. Miller davem@davemloft.net:
On Wed, 21 Aug 2024 13:42:29 -0700 you wrote:
The mana_hwc_rx_event_handler() / mana_hwc_handle_resp() calls complete(&ctx->comp_event) before posting the wqe back. It's possible that other callers, like mana_create_txq(), start the next round of mana_hwc_send_request() before the posting of wqe. And if the HW is fast enough to respond, it can hit no_wqe error on the HW channel, then the response message is lost. The mana driver may fail to create queues and open, because of waiting for the HW response and timed out. Sample dmesg: [ 528.610840] mana 39d4:00:02.0: HWC: Request timed out! [ 528.614452] mana 39d4:00:02.0: Failed to send mana message: -110, 0x0 [ 528.618326] mana 39d4:00:02.0 enP14804s2: Failed to create WQ object: -110
[...]
Here is the summary with links: - [net] net: mana: Fix race of mana_hwc_post_rx_wqe and new hwc response https://git.kernel.org/netdev/net/c/8af174ea863c
You are awesome, thank you!