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IB/rdmavt: Add support for query_port, modify_port and get_port_immutable 

rvt_query_port calls into the driver through a call back function
query_port_state to populate the rest of ib_port_attr elements.
rvt_modify_port calls into the driver if needed through a call back
function shut_down_port()

Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Harish Chegondi 2016-02-03 14:15:20 -08:00 committed by Doug Ledford
parent 1f024992ef
commit 61a650c14d
2 changed files with 61 additions and 22 deletions
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77
drivers/infiniband/sw/rdmavt/vt.c
View File

@ -128,14 +128,27 @@ static int rvt_modify_device(struct ib_device *device,
static int rvt_query_port(struct ib_device *ibdev, u8 port_num,
struct ib_port_attr *props)
{
if (ibport_num_to_idx(ibdev, port_num) < 0)
struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
struct rvt_ibport *rvp;
int port_index = ibport_num_to_idx(ibdev, port_num);
if (port_index < 0)
return -EINVAL;
/*
* VT-DRIVER-API: query_port_state()
* driver returns pretty much everything in ib_port_attr
*/
return -EOPNOTSUPP;
rvp = rdi->ports[port_index];
memset(props, 0, sizeof(*props));
props->sm_lid = rvp->sm_lid;
props->sm_sl = rvp->sm_sl;
props->port_cap_flags = rvp->port_cap_flags;
props->max_msg_sz = 0x80000000;
props->pkey_tbl_len = rvt_get_npkeys(rdi);
props->bad_pkey_cntr = rvp->pkey_violations;
props->qkey_viol_cntr = rvp->qkey_violations;
props->subnet_timeout = rvp->subnet_timeout;
props->init_type_reply = 0;
/* Populate the remaining ib_port_attr elements */
return rdi->driver_f.query_port_state(rdi, port_num, props);
}
/**
@ -150,23 +163,26 @@ static int rvt_query_port(struct ib_device *ibdev, u8 port_num,
static int rvt_modify_port(struct ib_device *ibdev, u8 port_num,
int port_modify_mask, struct ib_port_modify *props)
{
/*
* VT-DRIVER-API: set_link_state()
* driver will set the link state using the IB enumeration
*
* VT-DRIVER-API: clear_qkey_violations()
* clears driver private qkey counter
*
* VT-DRIVER-API: get_lid()
* driver needs to return the LID
*
* TBD: send_trap() and post_mad_send() need examined to see where they
* fit in.
*/
if (ibport_num_to_idx(ibdev, port_num) < 0)
struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
struct rvt_ibport *rvp;
int ret = 0;
int port_index = ibport_num_to_idx(ibdev, port_num);
if (port_index < 0)
return -EINVAL;
return -EOPNOTSUPP;
rvp = rdi->ports[port_index];
rvp->port_cap_flags |= props->set_port_cap_mask;
rvp->port_cap_flags &= ~props->clr_port_cap_mask;
if (props->set_port_cap_mask || props->clr_port_cap_mask)
rdi->driver_f.cap_mask_chg(rdi, port_num);
if (port_modify_mask & IB_PORT_SHUTDOWN)
ret = rdi->driver_f.shut_down_port(rdi, port_num);
if (port_modify_mask & IB_PORT_RESET_QKEY_CNTR)
rvp->qkey_violations = 0;
return ret;
}
/**
@ -273,7 +289,24 @@ static int rvt_dealloc_ucontext(struct ib_ucontext *context)
static int rvt_get_port_immutable(struct ib_device *ibdev, u8 port_num,
struct ib_port_immutable *immutable)
{
return -EOPNOTSUPP;
struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
struct ib_port_attr attr;
int err, port_index;
port_index = ibport_num_to_idx(ibdev, port_num);
if (port_index < 0)
return -EINVAL;
err = rvt_query_port(ibdev, port_num, &attr);
if (err)
return err;
immutable->pkey_tbl_len = attr.pkey_tbl_len;
immutable->gid_tbl_len = attr.gid_tbl_len;
immutable->core_cap_flags = rdi->dparms.core_cap_flags;
immutable->max_mad_size = rdi->dparms.max_mad_size;
return 0;
}
/*

6
include/rdma/rdma_vt.h
View File

@ -200,6 +200,8 @@ struct rvt_driver_params {
int psn_mask;
int psn_shift;
int psn_modify_mask;
u32 core_cap_flags;
u32 max_mad_size;
};
/* Protection domain */
@ -250,6 +252,10 @@ struct rvt_driver_provided {
int (*mtu_to_path_mtu)(u32 mtu);
int (*get_guid_be)(struct rvt_dev_info *rdi, struct rvt_ibport *rvp,
int guid_index, __be64 *guid);
int (*query_port_state)(struct rvt_dev_info *rdi, u8 port_num,
struct ib_port_attr *props);
int (*shut_down_port)(struct rvt_dev_info *rdi, u8 port_num);
void (*cap_mask_chg)(struct rvt_dev_info *rdi, u8 port_num);
/*--------------------*/
/* Optional functions */