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authorDotan Barak <dotanb@dev.mellanox.co.il>2007-06-26 15:55:28 +0300
committerRoland Dreier <rolandd@cisco.com>2007-07-09 20:12:26 -0700
commit149983af609e8f5c57157467baf8545d17b8a6a1 (patch)
tree4a8ea99e670a6e74b7b03122408a82d4c6e29518 /drivers/net/mlx4
parent87427da55bc03dbce7906a5b09ed50279d654d28 (diff)
mlx4_core: Get the maximum message size from reported device capabilities
Get the maximum message size from the device capabilities returned from the QUERY_DEV_CAP firmware command, rather than hard-coding 2 GB. Signed-off-by: Dotan Barak <dotanb@dev.mellanox.co.il> Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4')
-rw-r--r--drivers/net/mlx4/fw.c3
-rw-r--r--drivers/net/mlx4/fw.h1
-rw-r--r--drivers/net/mlx4/main.c1
3 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index d2b065351e4..c45cbe43a0c 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -138,6 +138,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
#define QUERY_DEV_CAP_ACK_DELAY_OFFSET 0x35
#define QUERY_DEV_CAP_MTU_WIDTH_OFFSET 0x36
#define QUERY_DEV_CAP_VL_PORT_OFFSET 0x37
+#define QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET 0x38
#define QUERY_DEV_CAP_MAX_GID_OFFSET 0x3b
#define QUERY_DEV_CAP_RATE_SUPPORT_OFFSET 0x3c
#define QUERY_DEV_CAP_MAX_PKEY_OFFSET 0x3f
@@ -220,6 +221,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev_cap->local_ca_ack_delay = field & 0x1f;
MLX4_GET(field, outbox, QUERY_DEV_CAP_VL_PORT_OFFSET);
dev_cap->num_ports = field & 0xf;
+ MLX4_GET(field, outbox, QUERY_DEV_CAP_MAX_MSG_SZ_OFFSET);
+ dev_cap->max_msg_sz = 1 << (field & 0x1f);
MLX4_GET(stat_rate, outbox, QUERY_DEV_CAP_RATE_SUPPORT_OFFSET);
dev_cap->stat_rate_support = stat_rate;
MLX4_GET(dev_cap->flags, outbox, QUERY_DEV_CAP_FLAGS_OFFSET);
diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h
index 296254ac27c..7e1dd9e25cf 100644
--- a/drivers/net/mlx4/fw.h
+++ b/drivers/net/mlx4/fw.h
@@ -60,6 +60,7 @@ struct mlx4_dev_cap {
int max_rdma_global;
int local_ca_ack_delay;
int num_ports;
+ u32 max_msg_sz;
int max_mtu[MLX4_MAX_PORTS + 1];
int max_port_width[MLX4_MAX_PORTS + 1];
int max_vl[MLX4_MAX_PORTS + 1];
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index c3da2a2f543..a4f2e0475a7 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -154,6 +154,7 @@ static int __devinit mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev
dev->caps.reserved_uars = dev_cap->reserved_uars;
dev->caps.reserved_pds = dev_cap->reserved_pds;
dev->caps.mtt_entry_sz = MLX4_MTT_ENTRY_PER_SEG * dev_cap->mtt_entry_sz;
+ dev->caps.max_msg_sz = dev_cap->max_msg_sz;
dev->caps.page_size_cap = ~(u32) (dev_cap->min_page_sz - 1);
dev->caps.flags = dev_cap->flags;
dev->caps.stat_rate_support = dev_cap->stat_rate_support;