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

[longli@linuxonhyperv.com]

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

diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index 609cd714dcc0..a80c14676c75 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/linux/mana/gdma.h b/include/linux/mana/gdma.h
index d6a970118f4c..d40f1dffca5c 100644
--- a/include/linux/mana/gdma.h
+++ b/include/linux/mana/gdma.h
@@ -9,6 +9,8 @@
 
 #include "shm_channel.h"
 
+#define GDMA_STATUS_MORE_ENTRIES	((u32)0x00000105L)
+
 /* Structures labeled with "HW DATA" are exchanged with the hardware. All of
  * them are naturally aligned and hence don't need __packed.
  */
-- 
2.17.1