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| author | Jack Morgenstein <jackm@dev.mellanox.co.il> | 2011-12-13 04:18:30 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-13 13:56:08 -0500 |
| commit | ab9c17a009ee8eb8c667f22dc0be0709effceab9 (patch) | |
| tree | b85acd5d8cf28a42ef5f7361ef43b4195b89912d /include/linux/mlx4 | |
| parent | d81c7186aa16a0da9e39961af6bad0c855a5d684 (diff) | |
| download | lwn-ab9c17a009ee8eb8c667f22dc0be0709effceab9.tar.gz lwn-ab9c17a009ee8eb8c667f22dc0be0709effceab9.zip | |
mlx4_core: Modify driver initialization flow to accommodate SRIOV for Ethernet
1. Added module parameters sr_iov and probe_vf for controlling enablement of
SRIOV mode.
2. Increased default max num-qps, num-mpts and log_num_macs to accomodate
SRIOV mode
3. Added port_type_array as a module parameter to allow driver startup with
ports configured as desired.
In SRIOV mode, only ETH is supported, and this array is ignored; otherwise,
for the case where the FW supports both port types (ETH and IB), the
port_type_array parameter is used.
By default, the port_type_array is set to configure both ports as IB.
4. When running in sriov mode, the master needs to initialize the ICM eq table
to hold the eq's for itself and also for all the slaves.
5. mlx4_set_port_mask() now invoked from mlx4_init_hca, instead of in mlx4_dev_cap.
6. Introduced sriov VF (slave) device startup/teardown logic (mainly procedures
mlx4_init_slave, mlx4_slave_exit, mlx4_slave_cap, mlx4_slave_exit and flow
modifications in __mlx4_init_one, mlx4_init_hca, and mlx4_setup_hca).
VFs obtain their startup information from the PF (master) device via the
comm channel.
7. In SRIOV mode (both PF and VF), MSI_X must be enabled, or the driver
aborts loading the device.
8. Do not allow setting port type via sysfs when running in SRIOV mode.
9. mlx4_get_ownership: Currently, only one PF is supported by the driver.
If the HCA is burned with FW which enables more than one PF, only one
of the PFs is allowed to run. The first one up grabs a FW ownership
semaphone -- all other PFs will find that semaphore taken, and the
driver will not allow them to run.
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Liran Liss <liranl@mellanox.co.il>
Signed-off-by: Marcel Apfelbaum <marcela@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mlx4')
| -rw-r--r-- | include/linux/mlx4/cmd.h | 2 | ||||
| -rw-r--r-- | include/linux/mlx4/device.h | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h index ae62630a665e..9958ff2cad3c 100644 --- a/include/linux/mlx4/cmd.h +++ b/include/linux/mlx4/cmd.h @@ -225,4 +225,6 @@ void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbo u32 mlx4_comm_get_version(void); +#define MLX4_COMM_GET_IF_REV(cmd_chan_ver) (u8)((cmd_chan_ver) >> 8) + #endif /* MLX4_CMD_H */ diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 65bb466c575f..5f784ff6a36e 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -489,6 +489,7 @@ struct mlx4_dev { struct radix_tree_root qp_table_tree; u8 rev_id; char board_id[MLX4_BOARD_ID_LEN]; + int num_vfs; }; struct mlx4_init_port_param { |