diff mbox series

[v4,11/12] net: mana: Define and process GDMA response code GDMA_STATUS_MORE_ENTRIES

Message ID 1655345240-26411-12-git-send-email-longli@linuxonhyperv.com (mailing list archive)
State Superseded
Delegated to: Jason Gunthorpe
Headers show
Series Introduce Microsoft Azure Network Adapter (MANA) RDMA driver | expand

Commit Message

Long Li June 16, 2022, 2:07 a.m. UTC 
From: Ajay Sharma <sharmaajay@microsoft.com>

When doing memory registration, the PF may respond with
GDMA_STATUS_MORE_ENTRIES to indicate a follow request is needed. This is
not an error and should be processed as expected.

Signed-off-by: Ajay Sharma <sharmaajay@microsoft.com>
Signed-off-by: Long Li <longli@microsoft.com>
---
 drivers/net/ethernet/microsoft/mana/hw_channel.c | 2 +-
 include/net/mana/gdma.h                          | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

Comments

Dexuan Cui July 11, 2022, 1:32 a.m. UTC | #1 
> From: longli@linuxonhyperv.com <longli@linuxonhyperv.com>
> Sent: Wednesday, June 15, 2022 7:07 PM
> 
> When doing memory registration, the PF may respond with
> GDMA_STATUS_MORE_ENTRIES to indicate a follow request is needed. This is
> not an error and should be processed as expected.
> 
> Signed-off-by: Ajay Sharma <sharmaajay@microsoft.com>
> Signed-off-by: Long Li <longli@microsoft.com>

Reviewed-by: Dexuan Cui <decui@microsoft.com>
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index e61cb3f6fbe1..24ecd193a185 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -820,7 +820,7 @@  int mana_hwc_send_request(struct hw_channel_context *hwc, u32 req_len,
 		goto out;
 	}
 
-	if (ctx->status_code) {
+	if (ctx->status_code && ctx->status_code != GDMA_STATUS_MORE_ENTRIES) {
 		dev_err(hwc->dev, "HWC: Failed hw_channel req: 0x%x\n",
 			ctx->status_code);
 		err = -EPROTO;
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index ef5de92dd98d..0485902d96c9 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -9,6 +9,8 @@ 
 
 #include "shm_channel.h"
 
+#define GDMA_STATUS_MORE_ENTRIES	0x00000105
+
 /* Structures labeled with "HW DATA" are exchanged with the hardware. All of
  * them are naturally aligned and hence don't need __packed.
  */