scsi: fnic: fnic devcmd2 interface definitions (5ed827a6) · Commits · github.com / kvm-riscv / linux

drivers/scsi/fnic/vnic_devcmd.h

+156 −2

Original line number	Diff line number	Diff line
		@@ -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_ */

drivers/scsi/fnic/vnic_resource.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -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 */
		};