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[PATCH] IB/mthca: Use correct port width capability value

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When we call the INIT_IB firmware command to bring up a port, use
the actual port width capability returned by the QUERY_DEV_LIM
command instead of always trying to enable both 1X and 4X.  This
fixes breakage seen when the firmware is build to allow 4X only.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2005-08-17 07:39:10 -07:00 committed by Roland Dreier
parent 2aeba9a03b
commit da6561c285
5 changed files with 10 additions and 13 deletions
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7
drivers/infiniband/hw/mthca/mthca_cmd.c
View File

@ -1282,10 +1282,8 @@ int mthca_INIT_IB(struct mthca_dev *dev,
#define INIT_IB_FLAG_SIG (1 << 18)
#define INIT_IB_FLAG_NG (1 << 17)
#define INIT_IB_FLAG_G0 (1 << 16)
#define INIT_IB_FLAG_1X (1 << 8)
#define INIT_IB_FLAG_4X (1 << 9)
#define INIT_IB_FLAG_12X (1 << 11)
#define INIT_IB_VL_SHIFT 4
#define INIT_IB_PORT_WIDTH_SHIFT 8
#define INIT_IB_MTU_SHIFT 12
#define INIT_IB_MAX_GID_OFFSET 0x06
#define INIT_IB_MAX_PKEY_OFFSET 0x0a
@ -1301,12 +1299,11 @@ int mthca_INIT_IB(struct mthca_dev *dev,
memset(inbox, 0, INIT_IB_IN_SIZE);
flags = 0;
flags |= param->enable_1x ? INIT_IB_FLAG_1X : 0;
flags |= param->enable_4x ? INIT_IB_FLAG_4X : 0;
flags |= param->set_guid0 ? INIT_IB_FLAG_G0 : 0;
flags |= param->set_node_guid ? INIT_IB_FLAG_NG : 0;
flags |= param->set_si_guid ? INIT_IB_FLAG_SIG : 0;
flags |= param->vl_cap << INIT_IB_VL_SHIFT;
flags |= param->port_width << INIT_IB_PORT_WIDTH_SHIFT;
flags |= param->mtu_cap << INIT_IB_MTU_SHIFT;
MTHCA_PUT(inbox, flags, INIT_IB_FLAGS_OFFSET);

3
drivers/infiniband/hw/mthca/mthca_cmd.h
View File

@ -220,8 +220,7 @@ struct mthca_init_hca_param {
};
struct mthca_init_ib_param {
int enable_1x;
int enable_4x;
int port_width;
int vl_cap;
int mtu_cap;
u16 gid_cap;

1
drivers/infiniband/hw/mthca/mthca_dev.h
View File

@ -148,6 +148,7 @@ struct mthca_limits {
int reserved_mcgs;
int num_pds;
int reserved_pds;
u8 port_width_cap;
};
struct mthca_alloc {

1
drivers/infiniband/hw/mthca/mthca_main.c
View File

@ -171,6 +171,7 @@ static int __devinit mthca_dev_lim(struct mthca_dev *mdev, struct mthca_dev_lim
mdev->limits.reserved_mrws = dev_lim->reserved_mrws;
mdev->limits.reserved_uars = dev_lim->reserved_uars;
mdev->limits.reserved_pds = dev_lim->reserved_pds;
mdev->limits.port_width_cap = dev_lim->max_port_width;
/* IB_DEVICE_RESIZE_MAX_WR not supported by driver.
May be doable since hardware supports it for SRQ.

11
drivers/infiniband/hw/mthca/mthca_qp.c
View File

@ -575,12 +575,11 @@ static void init_port(struct mthca_dev *dev, int port)
memset(&param, 0, sizeof param);
param.enable_1x = 1;
param.enable_4x = 1;
param.vl_cap = dev->limits.vl_cap;
param.mtu_cap = dev->limits.mtu_cap;
param.gid_cap = dev->limits.gid_table_len;
param.pkey_cap = dev->limits.pkey_table_len;
param.port_width = dev->limits.port_width_cap;
param.vl_cap = dev->limits.vl_cap;
param.mtu_cap = dev->limits.mtu_cap;
param.gid_cap = dev->limits.gid_table_len;
param.pkey_cap = dev->limits.pkey_table_len;
err = mthca_INIT_IB(dev, &param, port, &status);
if (err)