diff mbox series

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

Message ID 1652778276-2986-12-git-send-email-longli@linuxonhyperv.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series Introduce Microsoft Azure Network Adapter (MANA) RDMA driver | expand

Checks

Context Check Description
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 1 maintainers not CCed: edumazet@google.com
netdev/build_clang success Errors and warnings before: 3 this patch: 3
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 4 this patch: 4
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0
netdev/tree_selection success Guessing tree name failed - patch did not apply

Commit Message

Long Li May 17, 2022, 9:04 a.m. UTC 
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 mbox series

Patch

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.
  */