From: Dotan Barak Date: Tue, 26 Jun 2007 12:55:28 +0000 (+0300) Subject: mlx4_core: Get the maximum message size from reported device capabilities X-Git-Tag: v2.6.23-rc1~1085^2~44 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=149983af609e8f5c57157467baf8545d17b8a6a1;p=linux-2.6 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 Signed-off-by: Michael S. Tsirkin Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index c591616dcc..2fc8ccebaa 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -169,7 +169,7 @@ static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, props->phys_state = out_mad->data[33] >> 4; props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; - props->max_msg_sz = 0x80000000; + props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index d2b065351e..c45cbe43a0 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 296254ac27..7e1dd9e25c 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 c3da2a2f54..a4f2e0475a 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; diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index b372f5910f..8209387ee8 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -172,6 +172,7 @@ struct mlx4_caps { int num_pds; int reserved_pds; int mtt_entry_sz; + u32 max_msg_sz; u32 page_size_cap; u32 flags; u16 stat_rate_support;