linux-kernel - [PATCH rdma-next 1/2] RDMA/mana_ib: Query feature

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Message-Id: <1738751713-16169-2-git-send-email-kotaranov@linux.microsoft.com>
Date: Wed,  5 Feb 2025 02:35:12 -0800
From: Konstantin Taranov <kotaranov@...ux.microsoft.com>
To: kotaranov@...rosoft.com,
	shirazsaleem@...rosoft.com,
	sharmaajay@...rosoft.com,
	longli@...rosoft.com,
	jgg@...pe.ca,
	leon@...nel.org
Cc: linux-rdma@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH rdma-next 1/2] RDMA/mana_ib: Query feature_flags bitmask from FW

From: Shiraz Saleem <shirazsaleem@...rosoft.com>

Extend the mana_ib_gd_query_adapter_caps function to retrieve and store
the feature_flags from the firmware response.

Signed-off-by: Shiraz Saleem <shirazsaleem@...rosoft.com>
Signed-off-by: Konstantin Taranov <kotaranov@...rosoft.com>
---
 drivers/infiniband/hw/mana/main.c    | 3 ++-
 drivers/infiniband/hw/mana/mana_ib.h | 2 ++
 include/net/mana/gdma.h              | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index ae1fb69..3d4b8e2 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -665,7 +665,7 @@ int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *dev)
 
 	mana_gd_init_req_hdr(&req.hdr, MANA_IB_GET_ADAPTER_CAP, sizeof(req),
 			     sizeof(resp));
-	req.hdr.resp.msg_version = GDMA_MESSAGE_V3;
+	req.hdr.resp.msg_version = GDMA_MESSAGE_V4;
 	req.hdr.dev_id = dev->gdma_dev->dev_id;
 
 	err = mana_gd_send_request(mdev_to_gc(dev), sizeof(req),
@@ -694,6 +694,7 @@ int mana_ib_gd_query_adapter_caps(struct mana_ib_dev *dev)
 	caps->max_inline_data_size = resp.max_inline_data_size;
 	caps->max_send_sge_count = resp.max_send_sge_count;
 	caps->max_recv_sge_count = resp.max_recv_sge_count;
+	caps->feature_flags = resp.feature_flags;
 
 	return 0;
 }
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index cd771af..baaeef0 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -58,6 +58,7 @@ struct mana_ib_adapter_caps {
 	u32 max_send_sge_count;
 	u32 max_recv_sge_count;
 	u32 max_inline_data_size;
+	u64 feature_flags;
 };
 
 struct mana_ib_queue {
@@ -230,6 +231,7 @@ struct mana_ib_query_adapter_caps_resp {
 	u32 max_send_sge_count;
 	u32 max_recv_sge_count;
 	u32 max_inline_data_size;
+	u64 feature_flags;
 }; /* HW Data */
 
 struct mana_rnic_create_adapter_req {
diff --git a/include/net/mana/gdma.h b/include/net/mana/gdma.h
index a94b04e..50ffbc4 100644
--- a/include/net/mana/gdma.h
+++ b/include/net/mana/gdma.h
@@ -152,6 +152,7 @@ struct gdma_general_req {
 #define GDMA_MESSAGE_V1 1
 #define GDMA_MESSAGE_V2 2
 #define GDMA_MESSAGE_V3 3
+#define GDMA_MESSAGE_V4 4
 
 struct gdma_general_resp {
 	struct gdma_resp_hdr hdr;
-- 
2.43.0