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From: Alex Vesker <valex@mellanox.com>
To: netdev@vger.kernel.org, jiri@mellanox.com
Cc: dsahern@gmail.com, andrew@lunn.ch, rahul.lakkireddy@chelsio.com,
	Alex Vesker <valex@mellanox.com>,
	Tariq Toukan <tariqt@mellanox.com>
Subject: [PATCH net-next v2 08/11] net/mlx4_core: Add health buffer address capability
Date: Wed, 11 Jul 2018 13:43:05 +0300	[thread overview]
Message-ID: <1531305788-29420-9-git-send-email-valex@mellanox.com> (raw)
In-Reply-To: <1531305788-29420-1-git-send-email-valex@mellanox.com>

Health buffer address is a 32 bit PCI address offset provided by
the FW. This offset is used for reading FW health debug data
located on the shared CR space. Cr space is accessible in both
driver and FW and allows for different queries and configurations.
Health buffer size is always 64B of readable data followed by a
lock which is used to block volatile CR space access.

Signed-off-by: Alex Vesker <valex@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 drivers/net/ethernet/mellanox/mlx4/fw.c   | 5 ++++-
 drivers/net/ethernet/mellanox/mlx4/fw.h   | 1 +
 drivers/net/ethernet/mellanox/mlx4/main.c | 1 +
 include/linux/mlx4/device.h               | 1 +
 4 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 46dcbfb..babcfd9 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -825,7 +825,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_NUM_OFFSET	0xcc
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MAX_OFFSET	0xd0
 #define QUERY_DEV_CAP_QP_RATE_LIMIT_MIN_OFFSET	0xd2
-
+#define QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET	0xe4
 
 	dev_cap->flags2 = 0;
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
@@ -1082,6 +1082,9 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 		dev_cap->rl_caps.min_unit = size >> 14;
 	}
 
+	MLX4_GET(dev_cap->health_buffer_addrs, outbox,
+		 QUERY_DEV_CAP_HEALTH_BUFFER_ADDRESS_OFFSET);
+
 	MLX4_GET(field32, outbox, QUERY_DEV_CAP_EXT_2_FLAGS_OFFSET);
 	if (field32 & (1 << 16))
 		dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_UPDATE_QP;
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.h b/drivers/net/ethernet/mellanox/mlx4/fw.h
index cd6399c..650ae08 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.h
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.h
@@ -128,6 +128,7 @@ struct mlx4_dev_cap {
 	u32 dmfs_high_rate_qpn_base;
 	u32 dmfs_high_rate_qpn_range;
 	struct mlx4_rate_limit_caps rl_caps;
+	u32 health_buffer_addrs;
 	struct mlx4_port_cap port_cap[MLX4_MAX_PORTS + 1];
 	bool wol_port[MLX4_MAX_PORTS + 1];
 };
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index c42eddf..806d441 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -523,6 +523,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 	dev->caps.max_rss_tbl_sz     = dev_cap->max_rss_tbl_sz;
 	dev->caps.wol_port[1]          = dev_cap->wol_port[1];
 	dev->caps.wol_port[2]          = dev_cap->wol_port[2];
+	dev->caps.health_buffer_addrs  = dev_cap->health_buffer_addrs;
 
 	/* Save uar page shift */
 	if (!mlx4_is_slave(dev)) {
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 122e7e9..e3bfe76 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -630,6 +630,7 @@ struct mlx4_caps {
 	u32			vf_caps;
 	bool			wol_port[MLX4_MAX_PORTS + 1];
 	struct mlx4_rate_limit_caps rl_caps;
+	u32			health_buffer_addrs;
 };
 
 struct mlx4_buf_list {
-- 
1.8.3.1

  parent reply	other threads:[~2018-07-11 10:47 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-11 10:42 [PATCH net-next v2 00/11] devlink: Add support for region access Alex Vesker
2018-07-11 10:42 ` [PATCH net-next v2 01/11] devlink: Add support for creating and destroying regions Alex Vesker
2018-07-11 10:42 ` [PATCH net-next v2 02/11] devlink: Add callback to query for snapshot id before snapshot create Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 03/11] devlink: Add support for creating region snapshots Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 04/11] devlink: Add support for region get command Alex Vesker
2018-07-11 18:52   ` Jakub Kicinski
2018-07-11 10:43 ` [PATCH net-next v2 05/11] devlink: Extend the support querying for region snapshot IDs Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 06/11] devlink: Add support for region snapshot delete command Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 07/11] devlink: Add support for region snapshot read command Alex Vesker
2018-07-11 10:43 ` Alex Vesker [this message]
2018-07-11 10:43 ` [PATCH net-next v2 09/11] net/mlx4_core: Add Crdump FW snapshot support Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 10/11] devlink: Add generic parameters region_snapshot Alex Vesker
2018-07-11 10:43 ` [PATCH net-next v2 11/11] net/mlx4_core: Use devlink region_snapshot parameter Alex Vesker
2018-07-11 18:48 ` [PATCH net-next v2 00/11] devlink: Add support for region access Jakub Kicinski
2018-07-11 18:48   ` Jakub Kicinski
2018-07-12  6:21   ` Alex Vesker
2018-08-15 20:25   ` Johannes Berg

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