linux-kernel - [PATCH for-next 03/10] RDMA/hns: Add max_ah and cq moderation capacities in query

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Date: Fri, 12 Apr 2024 17:16:09 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-next 03/10] RDMA/hns: Add max_ah and cq moderation capacities in query_device()

From: Chengchang Tang <tangchengchang@...wei.com>

Add max_ah and cq moderation capacities to hns_roce_query_device().

Fixes: 9a4435375cd1 ("IB/hns: Add driver files for hns RoCE driver")
Signed-off-by: Chengchang Tang <tangchengchang@...wei.com>
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_device.h | 3 +++
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 2 +-
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h  | 2 +-
 drivers/infiniband/hw/hns/hns_roce_main.c   | 7 +++++++
 4 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_device.h b/drivers/infiniband/hw/hns/hns_roce_device.h
index 37888f78849d..ff0b3f68ee3a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_device.h
+++ b/drivers/infiniband/hw/hns/hns_roce_device.h
@@ -100,6 +100,9 @@
 #define CQ_BANKID_SHIFT 2
 #define CQ_BANKID_MASK GENMASK(1, 0)
 
+#define HNS_ROCE_MAX_CQ_COUNT 0xFFFF
+#define HNS_ROCE_MAX_CQ_PERIOD 0xFFFF
+
 enum {
 	SERV_TYPE_RC,
 	SERV_TYPE_UC,
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index e3f87090bad0..2a97a81ae19f 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -5848,7 +5848,7 @@ static int hns_roce_v2_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period)
 			dev_info(hr_dev->dev,
 				 "cq_period(%u) reached the upper limit, adjusted to 65.\n",
 				 cq_period);
-			cq_period = HNS_ROCE_MAX_CQ_PERIOD;
+			cq_period = HNS_ROCE_MAX_CQ_PERIOD_HIP08;
 		}
 		cq_period *= HNS_ROCE_CLOCK_ADJUST;
 	}
diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
index 4bac34f6bbe8..def1d15a03c7 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.h
@@ -1347,7 +1347,7 @@ struct fmea_ram_ecc {
 
 /* only for RNR timeout issue of HIP08 */
 #define HNS_ROCE_CLOCK_ADJUST 1000
-#define HNS_ROCE_MAX_CQ_PERIOD 65
+#define HNS_ROCE_MAX_CQ_PERIOD_HIP08 65
 #define HNS_ROCE_MAX_EQ_PERIOD 65
 #define HNS_ROCE_RNR_TIMER_10NS 1
 #define HNS_ROCE_1US_CFG 999
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c
index 1dc60c2b2b7a..4d94fcb8685a 100644
--- a/drivers/infiniband/hw/hns/hns_roce_main.c
+++ b/drivers/infiniband/hw/hns/hns_roce_main.c
@@ -40,6 +40,7 @@
 #include "hns_roce_common.h"
 #include "hns_roce_device.h"
 #include "hns_roce_hem.h"
+#include "hns_roce_hw_v2.h"
 
 static int hns_roce_set_mac(struct hns_roce_dev *hr_dev, u32 port,
 			    const u8 *addr)
@@ -192,6 +193,12 @@ static int hns_roce_query_device(struct ib_device *ib_dev,
 			    IB_ATOMIC_HCA : IB_ATOMIC_NONE;
 	props->max_pkeys = 1;
 	props->local_ca_ack_delay = hr_dev->caps.local_ca_ack_delay;
+	props->max_ah = INT_MAX;
+	props->cq_caps.max_cq_moderation_period = HNS_ROCE_MAX_CQ_PERIOD;
+	props->cq_caps.max_cq_moderation_count = HNS_ROCE_MAX_CQ_COUNT;
+	if (hr_dev->pci_dev->revision == PCI_REVISION_ID_HIP08)
+		props->cq_caps.max_cq_moderation_period = HNS_ROCE_MAX_CQ_PERIOD_HIP08;
+
 	if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_SRQ) {
 		props->max_srq = hr_dev->caps.num_srqs;
 		props->max_srq_wr = hr_dev->caps.max_srq_wrs;
-- 
2.30.0