This is a note to let you know that I've just added the patch titled
IB/core: Add support for XDR link speed
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ib-core-add-support-for-xdr-link-speed.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 79cad3705d28ff0c133bcd85a9107d0dbbb27e72
Author: Or Har-Toov <ohartoov@xxxxxxxxxx>
Date: Wed Sep 20 13:07:40 2023 +0300
IB/core: Add support for XDR link speed
[ Upstream commit 703289ce43f740b0096724300107df82d008552f ]
Add new IBTA speed XDR, the new rate that was added to Infiniband spec
as part of XDR and supporting signaling rate of 200Gb.
In order to report that value to rdma-core, add new u32 field to
query_port response.
Signed-off-by: Or Har-Toov <ohartoov@xxxxxxxxxx>
Reviewed-by: Mark Zhang <markzhang@xxxxxxxxxx>
Link: https://lore.kernel.org/r/9d235fc600a999e8274010f0e18b40fa60540e6c.1695204156.git.leon@xxxxxxxxxx
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Signed-off-by: Leon Romanovsky <leon@xxxxxxxxxx>
Stable-dep-of: c534ffda781f ("RDMA/mlx5: Fix AH static rate parsing")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index ec5efdc166601..9f97bef021497 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -342,6 +342,10 @@ static ssize_t rate_show(struct ib_device *ibdev, u32 port_num,
speed = " NDR";
rate = 1000;
break;
+ case IB_SPEED_XDR:
+ speed = " XDR";
+ rate = 2000;
+ break;
case IB_SPEED_SDR:
default: /* default to SDR for invalid rates */
speed = " SDR";
diff --git a/drivers/infiniband/core/uverbs_std_types_device.c b/drivers/infiniband/core/uverbs_std_types_device.c
index 049684880ae03..fb0555647336f 100644
--- a/drivers/infiniband/core/uverbs_std_types_device.c
+++ b/drivers/infiniband/core/uverbs_std_types_device.c
@@ -203,6 +203,7 @@ static int UVERBS_HANDLER(UVERBS_METHOD_QUERY_PORT)(
copy_port_attr_to_resp(&attr, &resp.legacy_resp, ib_dev, port_num);
resp.port_cap_flags2 = attr.port_cap_flags2;
+ resp.active_speed_ex = attr.active_speed;
return uverbs_copy_to_struct_or_zero(attrs, UVERBS_ATTR_QUERY_PORT_RESP,
&resp, sizeof(resp));
@@ -461,7 +462,7 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_PTR_OUT(
UVERBS_ATTR_QUERY_PORT_RESP,
UVERBS_ATTR_STRUCT(struct ib_uverbs_query_port_resp_ex,
- reserved),
+ active_speed_ex),
UA_MANDATORY));
DECLARE_UVERBS_NAMED_METHOD(
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index b99b3cc283b65..90848546f1704 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -147,6 +147,7 @@ __attribute_const__ int ib_rate_to_mult(enum ib_rate rate)
case IB_RATE_50_GBPS: return 20;
case IB_RATE_400_GBPS: return 160;
case IB_RATE_600_GBPS: return 240;
+ case IB_RATE_800_GBPS: return 320;
default: return -1;
}
}
@@ -176,6 +177,7 @@ __attribute_const__ enum ib_rate mult_to_ib_rate(int mult)
case 20: return IB_RATE_50_GBPS;
case 160: return IB_RATE_400_GBPS;
case 240: return IB_RATE_600_GBPS;
+ case 320: return IB_RATE_800_GBPS;
default: return IB_RATE_PORT_CURRENT;
}
}
@@ -205,6 +207,7 @@ __attribute_const__ int ib_rate_to_mbps(enum ib_rate rate)
case IB_RATE_50_GBPS: return 53125;
case IB_RATE_400_GBPS: return 425000;
case IB_RATE_600_GBPS: return 637500;
+ case IB_RATE_800_GBPS: return 850000;
default: return -1;
}
}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 68fd6d22adfd4..750effb875783 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -557,6 +557,7 @@ enum ib_port_speed {
IB_SPEED_EDR = 32,
IB_SPEED_HDR = 64,
IB_SPEED_NDR = 128,
+ IB_SPEED_XDR = 256,
};
enum ib_stat_flag {
@@ -836,6 +837,7 @@ enum ib_rate {
IB_RATE_50_GBPS = 20,
IB_RATE_400_GBPS = 21,
IB_RATE_600_GBPS = 22,
+ IB_RATE_800_GBPS = 23,
};
/**
diff --git a/include/uapi/rdma/ib_user_ioctl_verbs.h b/include/uapi/rdma/ib_user_ioctl_verbs.h
index 7dd56210226f5..125fb9f0ef4ab 100644
--- a/include/uapi/rdma/ib_user_ioctl_verbs.h
+++ b/include/uapi/rdma/ib_user_ioctl_verbs.h
@@ -218,7 +218,8 @@ enum ib_uverbs_advise_mr_flag {
struct ib_uverbs_query_port_resp_ex {
struct ib_uverbs_query_port_resp legacy_resp;
__u16 port_cap_flags2;
- __u8 reserved[6];
+ __u8 reserved[2];
+ __u32 active_speed_ex;
};
struct ib_uverbs_qp_cap {
