linux-kernel - [PATCH rdma-next v2 2/2] RDMA/mana

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Message-Id: <1717070117-1234-3-git-send-email-kotaranov@linux.microsoft.com>
Date: Thu, 30 May 2024 04:55:17 -0700
From: Konstantin Taranov <kotaranov@...ux.microsoft.com>
To: kotaranov@...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 v2 2/2] RDMA/mana_ib: extend query device

From: Konstantin Taranov <kotaranov@...rosoft.com>

Fill in properties of the ib device.
Order the assignment in the order of fields in the struct ib_device_attr.

Signed-off-by: Konstantin Taranov <kotaranov@...rosoft.com>
Reviewed-by: Long Li <longli@...rosoft.com>
---
 drivers/infiniband/hw/mana/main.c    | 19 ++++++++++++++++---
 drivers/infiniband/hw/mana/mana_ib.h |  5 +++++
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mana/main.c b/drivers/infiniband/hw/mana/main.c
index 2a41135..814a61e 100644
--- a/drivers/infiniband/hw/mana/main.c
+++ b/drivers/infiniband/hw/mana/main.c
@@ -547,14 +547,27 @@ int mana_ib_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
 	struct mana_ib_dev *dev = container_of(ibdev,
 			struct mana_ib_dev, ib_dev);
 
+	memset(props, 0, sizeof(*props));
+	props->max_mr_size = MANA_IB_MAX_MR_SIZE;
+	props->page_size_cap = PAGE_SZ_BM;
 	props->max_qp = dev->adapter_caps.max_qp_count;
 	props->max_qp_wr = dev->adapter_caps.max_qp_wr;
+	props->device_cap_flags = IB_DEVICE_RC_RNR_NAK_GEN;
+	props->max_send_sge = dev->adapter_caps.max_send_sge_count;
+	props->max_recv_sge = dev->adapter_caps.max_recv_sge_count;
+	props->max_sge_rd = dev->adapter_caps.max_recv_sge_count;
 	props->max_cq = dev->adapter_caps.max_cq_count;
 	props->max_cqe = dev->adapter_caps.max_qp_wr;
 	props->max_mr = dev->adapter_caps.max_mr_count;
-	props->max_mr_size = MANA_IB_MAX_MR_SIZE;
-	props->max_send_sge = dev->adapter_caps.max_send_sge_count;
-	props->max_recv_sge = dev->adapter_caps.max_recv_sge_count;
+	props->max_pd = dev->adapter_caps.max_pd_count;
+	props->max_qp_rd_atom = dev->adapter_caps.max_inbound_read_limit;
+	props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp;
+	props->max_qp_init_rd_atom = dev->adapter_caps.max_outbound_read_limit;
+	props->atomic_cap = IB_ATOMIC_NONE;
+	props->masked_atomic_cap = IB_ATOMIC_NONE;
+	props->max_ah = INT_MAX;
+	props->max_pkeys = 1;
+	props->local_ca_ack_delay = MANA_CA_ACK_DELAY;
 
 	return 0;
 }
diff --git a/drivers/infiniband/hw/mana/mana_ib.h b/drivers/infiniband/hw/mana/mana_ib.h
index 68c3b4f..59a7a35 100644
--- a/drivers/infiniband/hw/mana/mana_ib.h
+++ b/drivers/infiniband/hw/mana/mana_ib.h
@@ -27,6 +27,11 @@
  */
 #define MANA_IB_MAX_MR		0xFFFFFFu
 
+/*
+ * The CA timeout is approx. 260ms (4us * 2^(DELAY))
+ */
+#define MANA_CA_ACK_DELAY	16
+
 struct mana_ib_adapter_caps {
 	u32 max_sq_id;
 	u32 max_rq_id;
-- 
2.43.0