[PATCH net-next v01 05/15] hinic3: Add msg_send_lock for message sending concurrecy
From: Fan Gong <gongfan1@huawei.com>
Date: 2026-02-24 13:16:14
Also in:
linux-doc, lkml
Subsystem:
huawei 3rd gen ethernet driver, networking drivers, the rest · Maintainers:
Fan Gong, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Co-developed-by: Zhu Yikai <redacted> Signed-off-by: Zhu Yikai <redacted> Signed-off-by: Fan Gong <gongfan1@huawei.com> --- drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c | 5 +++++ drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h | 2 ++ 2 files changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c b/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c
index 63cc70bce8b0..8554291f852d 100644
--- a/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c
+++ b/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.c@@ -396,6 +396,7 @@ static int hinic3_mbox_pre_init(struct hinic3_hwdev *hwdev, { mbox->hwdev = hwdev; mutex_init(&mbox->mbox_send_lock); + mutex_init(&mbox->msg_send_lock); spin_lock_init(&mbox->mbox_lock); mbox->workq = create_singlethread_workqueue(HINIC3_MBOX_WQ_NAME);
@@ -723,6 +724,8 @@ static int send_mbox_msg(struct hinic3_mbox *mbox, u8 mod, u16 cmd, else rsp_aeq_id = 0; + mutex_lock(&mbox->msg_send_lock); + if (dst_func == MBOX_MGMT_FUNC_ID && !(hwdev->features[0] & MBOX_COMM_F_MBOX_SEGMENT)) { err = mbox_prepare_dma_msg(mbox, ack_type, &dma_msg,
@@ -776,6 +779,8 @@ static int send_mbox_msg(struct hinic3_mbox *mbox, u8 mod, u16 cmd, } err_send: + mutex_unlock(&mbox->msg_send_lock); + return err; }
diff --git a/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h b/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h
index e26f22d1d564..d972d2bfd528 100644
--- a/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h
+++ b/drivers/net/ethernet/huawei/hinic3/hinic3_mbox.h@@ -114,6 +114,8 @@ struct hinic3_mbox { struct hinic3_hwdev *hwdev; /* lock for send mbox message and ack message */ struct mutex mbox_send_lock; + /* lock for send mbox message */ + struct mutex msg_send_lock; struct hinic3_send_mbox send_mbox; struct mbox_dma_queue sync_msg_queue; struct mbox_dma_queue async_msg_queue;
--
2.43.0