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scsi: fnic: fnic devcmd2 interface definitions

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This patch adds the fnic devcmd2 command structre and the command result
structure definitions.

Signed-off-by: Satish Kharat <satishkh@cisco.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Satish Kharat 2019-01-18 14:51:40 -08:00 committed by Martin K. Petersen
parent 18244e9445
commit 5ed827a62f
2 changed files with 163 additions and 2 deletions
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158
drivers/scsi/fnic/vnic_devcmd.h
View file

@ -170,7 +170,8 @@ enum vnic_devcmd_cmd {
/* variant of CMD_INIT, with provisioning info
* (u64)a0=paddr of vnic_devcmd_provinfo
* (u32)a1=sizeof provision info */
* (u32)a1=sizeof provision info
*/
CMD_INIT_PROV_INFO = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 27),
/* enable virtual link */
@ -262,7 +263,125 @@ enum vnic_devcmd_cmd {
* non-zero for resetting vlan to the default
* out: (u16)a0=old default vlan
*/
CMD_SET_DEFAULT_VLAN = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 46)
CMD_SET_DEFAULT_VLAN = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 46),
/* init_prov_info2:
* Variant of CMD_INIT_PROV_INFO, where it will not try to enable
* the vnic until CMD_ENABLE2 is issued.
* (u64)a0=paddr of vnic_devcmd_provinfo
* (u32)a1=sizeof provision info
*/
CMD_INIT_PROV_INFO2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 47),
/* enable2:
* (u32)a0=0 ==> standby
* =CMD_ENABLE2_ACTIVE ==> active
*/
CMD_ENABLE2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 48),
/*
* cmd_status:
* Returns the status of the specified command
* Input:
* a0 = command for which status is being queried.
* Possible values are:
* CMD_SOFT_RESET
* CMD_HANG_RESET
* CMD_OPEN
* CMD_INIT
* CMD_INIT_PROV_INFO
* CMD_DEINIT
* CMD_INIT_PROV_INFO2
* CMD_ENABLE2
* Output:
* if status == STAT_ERROR
* a0 = ERR_ENOTSUPPORTED - status for command in a0 is
* not supported
* if status == STAT_NONE
* a0 = status of the devcmd specified in a0 as follows.
* ERR_SUCCESS - command in a0 completed successfully
* ERR_EINPROGRESS - command in a0 is still in progress
*/
CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49),
/*
* Returns interrupt coalescing timer conversion factors.
* After calling this devcmd, ENIC driver can convert
* interrupt coalescing timer in usec into CPU cycles as follows:
*
* intr_timer_cycles = intr_timer_usec * multiplier / divisor
*
* Interrupt coalescing timer in usecs can be be converted/obtained
* from CPU cycles as follows:
*
* intr_timer_usec = intr_timer_cycles * divisor / multiplier
*
* in: none
* out: (u32)a0 = multiplier
* (u32)a1 = divisor
* (u32)a2 = maximum timer value in usec
*/
CMD_INTR_COAL_CONVERT = _CMDC(_CMD_DIR_READ, _CMD_VTYPE_ALL, 50),
/*
* ISCSI DUMP API:
* in: (u64)a0=paddr of the param or param itself
* (u32)a1=ISCSI_CMD_xxx
*/
CMD_ISCSI_DUMP_REQ = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 51),
/*
* ISCSI DUMP STATUS API:
* in: (u32)a0=cmd tag
* in: (u32)a1=ISCSI_CMD_xxx
* out: (u32)a0=cmd status
*/
CMD_ISCSI_DUMP_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 52),
/*
* Subvnic migration from MQ <--> VF.
* Enable the LIF migration from MQ to VF and vice versa. MQ and VF
* indexes are statically bound at the time of initialization.
* Based on the
* direction of migration, the resources of either MQ or the VF shall
* be attached to the LIF.
* in: (u32)a0=Direction of Migration
* 0=> Migrate to VF
* 1=> Migrate to MQ
* (u32)a1=VF index (MQ index)
*/
CMD_MIGRATE_SUBVNIC = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 53),
/*
* Register / Deregister the notification block for MQ subvnics
* in:
* (u64)a0=paddr to notify (set paddr=0 to unset)
* (u32)a1 & 0x00000000ffffffff=sizeof(struct vnic_devcmd_notify)
* (u16)a1 & 0x0000ffff00000000=intr num (-1 for no intr)
* out:
* (u32)a1 = effective size
*/
CMD_SUBVNIC_NOTIFY = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 54),
/*
* Set the predefined mac address as default
* in:
* (u48)a0=mac addr
*/
CMD_SET_MAC_ADDR = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 55),
/* Update the provisioning info of the given VIF
* (u64)a0=paddr of vnic_devcmd_provinfo
* (u32)a1=sizeof provision info
*/
CMD_PROV_INFO_UPDATE = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ENET, 56),
/*
* Initialization for the devcmd2 interface.
* in: (u64) a0=host result buffer physical address
* in: (u16) a1=number of entries in result buffer
*/
CMD_INITIALIZE_DEVCMD2 = _CMDC(_CMD_DIR_WRITE, _CMD_VTYPE_ALL, 57)
};
/* flags for CMD_OPEN */
@ -347,4 +466,39 @@ struct vnic_devcmd {
u64 args[VNIC_DEVCMD_NARGS]; /* RW cmd args (little-endian) */
};
/*
* Version 2 of the interface.
*
* Some things are carried over, notably the vnic_devcmd_cmd enum.
*/
/*
* Flags for vnic_devcmd2.flags
*/
#define DEVCMD2_FNORESULT 0x1 /* Don't copy result to host */
#define VNIC_DEVCMD2_NARGS VNIC_DEVCMD_NARGS
struct vnic_devcmd2 {
u16 pad;
u16 flags;
u32 cmd; /* same command #defines as original */
u64 args[VNIC_DEVCMD2_NARGS];
};
#define VNIC_DEVCMD2_NRESULTS VNIC_DEVCMD_NARGS
struct devcmd2_result {
u64 results[VNIC_DEVCMD2_NRESULTS];
u32 pad;
u16 completed_index; /* into copy WQ */
u8 error; /* same error codes as original */
u8 color; /* 0 or 1 as with completion queues */
};
#define DEVCMD2_RING_SIZE 32
#define DEVCMD2_DESC_SIZE 128
#define DEVCMD2_RESULTS_SIZE_MAX ((1 << 16) - 1)
#endif /* _VNIC_DEVCMD_H_ */

7
drivers/scsi/fnic/vnic_resource.h
View file

@ -41,6 +41,13 @@ enum vnic_res_type {
RES_TYPE_RSVD7,
RES_TYPE_DEVCMD, /* Device command region */
RES_TYPE_PASS_THRU_PAGE, /* Pass-thru page */
RES_TYPE_SUBVNIC, /* subvnic resource type */
RES_TYPE_MQ_WQ, /* MQ Work queues */
RES_TYPE_MQ_RQ, /* MQ Receive queues */
RES_TYPE_MQ_CQ, /* MQ Completion queues */
RES_TYPE_DEPRECATED1, /* Old version of devcmd 2 */
RES_TYPE_DEPRECATED2, /* Old version of devcmd 2 */
RES_TYPE_DEVCMD2, /* Device control region */
RES_TYPE_MAX, /* Count of resource types */
};