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authorJack Morgenstein <jackm@dev.mellanox.co.il>2012-05-30 09:14:53 +0000
committerDavid S. Miller <davem@davemloft.net>2012-05-31 18:18:16 -0400
commitb91cb3ebcd5ef8db956b8caa486d780dc52b07f1 (patch)
tree76aa23e2322dc4a6ea39778656688a85ea5b03f3 /drivers
parent13bf58b7604d9adfebb8b7c95e6cfb31ec17c699 (diff)
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net/mlx4_core: Fixes for VF / Guest startup flow
- pass the following parameters: - firmware version (added QUERY_FW paravirtualization for that) - disable Blueflame on slaves. KVM disables write combining on guests, and we get better performance without BF in this case. (This requires QUERY_DEV_CAP paravirtualization, also in this commit) - max qp rdma as destination - get rid of a chunk of "if (0)" dead code Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/cmd.c4
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/fw.c46
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/main.c17
-rw-r--r--drivers/net/ethernet/mellanox/mlx4/mlx4.h10
4 files changed, 63 insertions, 14 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 1bcead1fa2f6..842c8ce9494e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -617,7 +617,7 @@ static struct mlx4_cmd_info cmd_info[] = {
.out_is_imm = false,
.encode_slave_id = false,
.verify = NULL,
- .wrapper = NULL
+ .wrapper = mlx4_QUERY_FW_wrapper
},
{
.opcode = MLX4_CMD_QUERY_HCA,
@@ -635,7 +635,7 @@ static struct mlx4_cmd_info cmd_info[] = {
.out_is_imm = false,
.encode_slave_id = false,
.verify = NULL,
- .wrapper = NULL
+ .wrapper = mlx4_QUERY_DEV_CAP_wrapper
},
{
.opcode = MLX4_CMD_QUERY_FUNC_CAP,
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 68f5cd6cb3c7..7f2a4a659627 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -669,6 +669,28 @@ out:
return err;
}
+int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
+ struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox,
+ struct mlx4_cmd_info *cmd)
+{
+ int err = 0;
+ u8 field;
+
+ err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_DEV_CAP,
+ MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
+ if (err)
+ return err;
+
+ /* For guests, report Blueflame disabled */
+ MLX4_GET(field, outbox->buf, QUERY_DEV_CAP_BF_OFFSET);
+ field &= 0x7f;
+ MLX4_PUT(outbox->buf, field, QUERY_DEV_CAP_BF_OFFSET);
+
+ return 0;
+}
+
int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
@@ -860,6 +882,9 @@ int mlx4_QUERY_FW(struct mlx4_dev *dev)
((fw_ver & 0xffff0000ull) >> 16) |
((fw_ver & 0x0000ffffull) << 16);
+ if (mlx4_is_slave(dev))
+ goto out;
+
MLX4_GET(lg, outbox, QUERY_FW_PPF_ID);
dev->caps.function = lg;
@@ -927,6 +952,27 @@ out:
return err;
}
+int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
+ struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox,
+ struct mlx4_cmd_info *cmd)
+{
+ u8 *outbuf;
+ int err;
+
+ outbuf = outbox->buf;
+ err = mlx4_cmd_box(dev, 0, outbox->dma, 0, 0, MLX4_CMD_QUERY_FW,
+ MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
+ if (err)
+ return err;
+
+ /* for slaves, zero out everything except FW version */
+ outbuf[0] = outbuf[1] = 0;
+ memset(&outbuf[8], 0, QUERY_FW_OUT_SIZE - 8);
+ return 0;
+}
+
static void get_board_id(void *vsd, char *board_id)
{
int i;
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 2fe9fe5f7cfb..7f71be0ca5f2 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -430,12 +430,17 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
mlx4_log_num_mgm_entry_size = hca_param.log_mc_entry_sz;
memset(&dev_cap, 0, sizeof(dev_cap));
+ dev->caps.max_qp_dest_rdma = 1 << hca_param.log_rd_per_qp;
err = mlx4_dev_cap(dev, &dev_cap);
if (err) {
mlx4_err(dev, "QUERY_DEV_CAP command failed, aborting.\n");
return err;
}
+ err = mlx4_QUERY_FW(dev);
+ if (err)
+ mlx4_err(dev, "QUERY_FW command failed: could not get FW version.\n");
+
page_size = ~dev->caps.page_size_cap + 1;
mlx4_warn(dev, "HCA minimum page size:%d\n", page_size);
if (page_size > PAGE_SIZE) {
@@ -499,18 +504,6 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
return -ENODEV;
}
-#if 0
- mlx4_warn(dev, "sqp_demux:%d\n", dev->caps.sqp_demux);
- mlx4_warn(dev, "num_uars:%d reserved_uars:%d uar region:0x%x bar2:0x%llx\n",
- dev->caps.num_uars, dev->caps.reserved_uars,
- dev->caps.uar_page_size * dev->caps.num_uars,
- pci_resource_len(dev->pdev, 2));
- mlx4_warn(dev, "num_eqs:%d reserved_eqs:%d\n", dev->caps.num_eqs,
- dev->caps.reserved_eqs);
- mlx4_warn(dev, "num_pds:%d reserved_pds:%d slave_pd_shift:%d pd_base:%d\n",
- dev->caps.num_pds, dev->caps.reserved_pds,
- dev->caps.slave_pd_shift, dev->caps.pd_base);
-#endif
return 0;
}
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 86b6e5a2fabf..e5d20220762c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -1039,6 +1039,11 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev);
void mlx4_free_resource_tracker(struct mlx4_dev *dev,
enum mlx4_res_tracker_free_type type);
+int mlx4_QUERY_FW_wrapper(struct mlx4_dev *dev, int slave,
+ struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox,
+ struct mlx4_cmd_info *cmd);
int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,
@@ -1054,6 +1059,11 @@ int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_cmd_mailbox *inbox,
struct mlx4_cmd_mailbox *outbox,
struct mlx4_cmd_info *cmd);
+int mlx4_QUERY_DEV_CAP_wrapper(struct mlx4_dev *dev, int slave,
+ struct mlx4_vhcr *vhcr,
+ struct mlx4_cmd_mailbox *inbox,
+ struct mlx4_cmd_mailbox *outbox,
+ struct mlx4_cmd_info *cmd);
int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
struct mlx4_vhcr *vhcr,
struct mlx4_cmd_mailbox *inbox,