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-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/mbox.c47
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/mbox.h1
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/rvu.c32
-rw-r--r--drivers/net/ethernet/marvell/octeontx2/af/rvu.h2
4 files changed, 70 insertions, 12 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
index d6f9ed8ea966..81c83d27a424 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.c
@@ -236,8 +236,10 @@ struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid,
struct otx2_mbox_dev *mdev = &mbox->dev[devid];
u16 msgs;
+ spin_lock(&mdev->mbox_lock);
+
if (mdev->num_msgs != mdev->msgs_acked)
- return ERR_PTR(-ENODEV);
+ goto error;
for (msgs = 0; msgs < mdev->msgs_acked; msgs++) {
struct mbox_msghdr *pmsg = mdev->mbase + imsg;
@@ -245,18 +247,55 @@ struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid,
if (msg == pmsg) {
if (pmsg->id != prsp->id)
- return ERR_PTR(-ENODEV);
+ goto error;
+ spin_unlock(&mdev->mbox_lock);
return prsp;
}
- imsg = pmsg->next_msgoff;
- irsp = prsp->next_msgoff;
+ imsg = mbox->tx_start + pmsg->next_msgoff;
+ irsp = mbox->rx_start + prsp->next_msgoff;
}
+error:
+ spin_unlock(&mdev->mbox_lock);
return ERR_PTR(-ENODEV);
}
EXPORT_SYMBOL(otx2_mbox_get_rsp);
+int otx2_mbox_check_rsp_msgs(struct otx2_mbox *mbox, int devid)
+{
+ unsigned long ireq = mbox->tx_start + msgs_offset;
+ unsigned long irsp = mbox->rx_start + msgs_offset;
+ struct otx2_mbox_dev *mdev = &mbox->dev[devid];
+ int rc = -ENODEV;
+ u16 msgs;
+
+ spin_lock(&mdev->mbox_lock);
+
+ if (mdev->num_msgs != mdev->msgs_acked)
+ goto exit;
+
+ for (msgs = 0; msgs < mdev->msgs_acked; msgs++) {
+ struct mbox_msghdr *preq = mdev->mbase + ireq;
+ struct mbox_msghdr *prsp = mdev->mbase + irsp;
+
+ if (preq->id != prsp->id)
+ goto exit;
+ if (prsp->rc) {
+ rc = prsp->rc;
+ goto exit;
+ }
+
+ ireq = mbox->tx_start + preq->next_msgoff;
+ irsp = mbox->rx_start + prsp->next_msgoff;
+ }
+ rc = 0;
+exit:
+ spin_unlock(&mdev->mbox_lock);
+ return rc;
+}
+EXPORT_SYMBOL(otx2_mbox_check_rsp_msgs);
+
int
otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid, u16 pcifunc, u16 id)
{
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 76a4575d18ff..25f0e6f7fb39 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -103,6 +103,7 @@ struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid,
int size, int size_rsp);
struct mbox_msghdr *otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid,
struct mbox_msghdr *msg);
+int otx2_mbox_check_rsp_msgs(struct otx2_mbox *mbox, int devid);
int otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid,
u16 pcifunc, u16 id);
bool otx2_mbox_nonempty(struct otx2_mbox *mbox, int devid);
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
index cf8741db1549..f5e6acaa865e 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.c
@@ -1440,12 +1440,12 @@ static void __rvu_mbox_handler(struct rvu_work *mwork, int type)
/* Process received mbox messages */
req_hdr = mdev->mbase + mbox->rx_start;
- if (req_hdr->num_msgs == 0)
+ if (mw->mbox_wrk[devid].num_msgs == 0)
return;
offset = mbox->rx_start + ALIGN(sizeof(*req_hdr), MBOX_MSG_ALIGN);
- for (id = 0; id < req_hdr->num_msgs; id++) {
+ for (id = 0; id < mw->mbox_wrk[devid].num_msgs; id++) {
msg = mdev->mbase + offset;
/* Set which PF/VF sent this message based on mbox IRQ */
@@ -1471,13 +1471,14 @@ static void __rvu_mbox_handler(struct rvu_work *mwork, int type)
if (msg->pcifunc & RVU_PFVF_FUNC_MASK)
dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d:VF%d\n",
err, otx2_mbox_id2name(msg->id),
- msg->id, devid,
+ msg->id, rvu_get_pf(msg->pcifunc),
(msg->pcifunc & RVU_PFVF_FUNC_MASK) - 1);
else
dev_warn(rvu->dev, "Error %d when processing message %s (0x%x) from PF%d\n",
err, otx2_mbox_id2name(msg->id),
msg->id, devid);
}
+ mw->mbox_wrk[devid].num_msgs = 0;
/* Send mbox responses to VF/PF */
otx2_mbox_msg_send(mbox, devid);
@@ -1523,14 +1524,14 @@ static void __rvu_mbox_up_handler(struct rvu_work *mwork, int type)
mdev = &mbox->dev[devid];
rsp_hdr = mdev->mbase + mbox->rx_start;
- if (rsp_hdr->num_msgs == 0) {
+ if (mw->mbox_wrk_up[devid].up_num_msgs == 0) {
dev_warn(rvu->dev, "mbox up handler: num_msgs = 0\n");
return;
}
offset = mbox->rx_start + ALIGN(sizeof(*rsp_hdr), MBOX_MSG_ALIGN);
- for (id = 0; id < rsp_hdr->num_msgs; id++) {
+ for (id = 0; id < mw->mbox_wrk_up[devid].up_num_msgs; id++) {
msg = mdev->mbase + offset;
if (msg->id >= MBOX_MSG_MAX) {
@@ -1560,6 +1561,7 @@ end:
offset = mbox->rx_start + msg->next_msgoff;
mdev->msgs_acked++;
}
+ mw->mbox_wrk_up[devid].up_num_msgs = 0;
otx2_mbox_reset(mbox, devid);
}
@@ -1697,14 +1699,28 @@ static void rvu_queue_work(struct mbox_wq_info *mw, int first,
mbox = &mw->mbox;
mdev = &mbox->dev[i];
hdr = mdev->mbase + mbox->rx_start;
- if (hdr->num_msgs)
- queue_work(mw->mbox_wq, &mw->mbox_wrk[i].work);
+ /*The hdr->num_msgs is set to zero immediately in the interrupt
+ * handler to ensure that it holds a correct value next time
+ * when the interrupt handler is called.
+ * pf->mbox.num_msgs holds the data for use in pfaf_mbox_handler
+ * pf>mbox.up_num_msgs holds the data for use in
+ * pfaf_mbox_up_handler.
+ */
+
+ if (hdr->num_msgs) {
+ mw->mbox_wrk[i].num_msgs = hdr->num_msgs;
+ hdr->num_msgs = 0;
+ queue_work(mw->mbox_wq, &mw->mbox_wrk[i].work);
+ }
mbox = &mw->mbox_up;
mdev = &mbox->dev[i];
hdr = mdev->mbase + mbox->rx_start;
- if (hdr->num_msgs)
+ if (hdr->num_msgs) {
+ mw->mbox_wrk_up[i].up_num_msgs = hdr->num_msgs;
+ hdr->num_msgs = 0;
queue_work(mw->mbox_wq, &mw->mbox_wrk_up[i].work);
+ }
}
}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index 63b6bbc60f8f..e81b0ed5a7c2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -63,6 +63,8 @@ struct rvu_debugfs {
struct rvu_work {
struct work_struct work;
struct rvu *rvu;
+ int num_msgs;
+ int up_num_msgs;
};
struct rsrc_bmap {
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-02 04:08:44 +0000