mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-27 20:16:05 +07:00
40c9db8ad8
The IBM vNIC protocol provides support for the user to initiate a failover from the client LPAR in case the current backing infrastructure is deemed inadequate or in an error state. Support for two H_VIOCTL sub-commands for vNIC devices are required to implement this function. These commands are H_GET_SESSION_TOKEN and H_SESSION_ERR_DETECTED. "[H_GET_SESSION_TOKEN] is used to obtain a session token from a VNIC client adapter. This token is opaque to the caller and is intended to be used in tandem with the SESSION_ERROR_DETECTED vioctl subfunction." "[H_SESSION_ERR_DETECTED] is used to report that the currently active backing device for a VNIC client adapter is behaving poorly, and that the hypervisor should attempt to fail over to a different backing device, if one is available." To provide tools access to this functionality the vNIC driver creates a sysfs file that, when written to, will send a request to pHyp to failover to a different backing device. Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com> Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
430 lines
14 KiB
C
430 lines
14 KiB
C
#ifndef _ASM_POWERPC_HVCALL_H
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#define _ASM_POWERPC_HVCALL_H
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#ifdef __KERNEL__
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#define HVSC .long 0x44000022
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#define H_SUCCESS 0
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#define H_BUSY 1 /* Hardware busy -- retry later */
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#define H_CLOSED 2 /* Resource closed */
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#define H_NOT_AVAILABLE 3
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#define H_CONSTRAINED 4 /* Resource request constrained to max allowed */
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#define H_PARTIAL 5
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#define H_IN_PROGRESS 14 /* Kind of like busy */
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#define H_PAGE_REGISTERED 15
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#define H_PARTIAL_STORE 16
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#define H_PENDING 17 /* returned from H_POLL_PENDING */
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#define H_CONTINUE 18 /* Returned from H_Join on success */
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#define H_LONG_BUSY_START_RANGE 9900 /* Start of long busy range */
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#define H_LONG_BUSY_ORDER_1_MSEC 9900 /* Long busy, hint that 1msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_10_MSEC 9901 /* Long busy, hint that 10msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_100_MSEC 9902 /* Long busy, hint that 100msec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_1_SEC 9903 /* Long busy, hint that 1sec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_10_SEC 9904 /* Long busy, hint that 10sec \
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is a good time to retry */
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#define H_LONG_BUSY_ORDER_100_SEC 9905 /* Long busy, hint that 100sec \
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is a good time to retry */
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#define H_LONG_BUSY_END_RANGE 9905 /* End of long busy range */
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/* Internal value used in book3s_hv kvm support; not returned to guests */
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#define H_TOO_HARD 9999
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#define H_HARDWARE -1 /* Hardware error */
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#define H_FUNCTION -2 /* Function not supported */
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#define H_PRIVILEGE -3 /* Caller not privileged */
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#define H_PARAMETER -4 /* Parameter invalid, out-of-range or conflicting */
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#define H_BAD_MODE -5 /* Illegal msr value */
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#define H_PTEG_FULL -6 /* PTEG is full */
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#define H_NOT_FOUND -7 /* PTE was not found" */
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#define H_RESERVED_DABR -8 /* DABR address is reserved by the hypervisor on this processor" */
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#define H_NO_MEM -9
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#define H_AUTHORITY -10
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#define H_PERMISSION -11
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#define H_DROPPED -12
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#define H_SOURCE_PARM -13
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#define H_DEST_PARM -14
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#define H_REMOTE_PARM -15
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#define H_RESOURCE -16
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#define H_ADAPTER_PARM -17
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#define H_RH_PARM -18
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#define H_RCQ_PARM -19
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#define H_SCQ_PARM -20
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#define H_EQ_PARM -21
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#define H_RT_PARM -22
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#define H_ST_PARM -23
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#define H_SIGT_PARM -24
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#define H_TOKEN_PARM -25
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#define H_MLENGTH_PARM -27
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#define H_MEM_PARM -28
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#define H_MEM_ACCESS_PARM -29
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#define H_ATTR_PARM -30
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#define H_PORT_PARM -31
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#define H_MCG_PARM -32
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#define H_VL_PARM -33
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#define H_TSIZE_PARM -34
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#define H_TRACE_PARM -35
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#define H_MASK_PARM -37
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#define H_MCG_FULL -38
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#define H_ALIAS_EXIST -39
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#define H_P_COUNTER -40
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#define H_TABLE_FULL -41
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#define H_ALT_TABLE -42
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#define H_MR_CONDITION -43
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#define H_NOT_ENOUGH_RESOURCES -44
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#define H_R_STATE -45
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#define H_RESCINDED -46
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#define H_P2 -55
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#define H_P3 -56
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#define H_P4 -57
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#define H_P5 -58
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#define H_P6 -59
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#define H_P7 -60
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#define H_P8 -61
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#define H_P9 -62
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#define H_TOO_BIG -64
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#define H_OVERLAP -68
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#define H_INTERRUPT -69
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#define H_BAD_DATA -70
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#define H_NOT_ACTIVE -71
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#define H_SG_LIST -72
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#define H_OP_MODE -73
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#define H_COP_HW -74
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#define H_STATE -75
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#define H_UNSUPPORTED_FLAG_START -256
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#define H_UNSUPPORTED_FLAG_END -511
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#define H_MULTI_THREADS_ACTIVE -9005
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#define H_OUTSTANDING_COP_OPS -9006
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/* Long Busy is a condition that can be returned by the firmware
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* when a call cannot be completed now, but the identical call
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* should be retried later. This prevents calls blocking in the
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* firmware for long periods of time. Annoyingly the firmware can return
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* a range of return codes, hinting at how long we should wait before
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* retrying. If you don't care for the hint, the macro below is a good
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* way to check for the long_busy return codes
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*/
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#define H_IS_LONG_BUSY(x) ((x >= H_LONG_BUSY_START_RANGE) \
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&& (x <= H_LONG_BUSY_END_RANGE))
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/* Flags */
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#define H_LARGE_PAGE (1UL<<(63-16))
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#define H_EXACT (1UL<<(63-24)) /* Use exact PTE or return H_PTEG_FULL */
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#define H_R_XLATE (1UL<<(63-25)) /* include a valid logical page num in the pte if the valid bit is set */
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#define H_READ_4 (1UL<<(63-26)) /* Return 4 PTEs */
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#define H_PAGE_STATE_CHANGE (1UL<<(63-28))
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#define H_PAGE_UNUSED ((1UL<<(63-29)) | (1UL<<(63-30)))
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#define H_PAGE_SET_UNUSED (H_PAGE_STATE_CHANGE | H_PAGE_UNUSED)
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#define H_PAGE_SET_LOANED (H_PAGE_SET_UNUSED | (1UL<<(63-31)))
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#define H_PAGE_SET_ACTIVE H_PAGE_STATE_CHANGE
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#define H_AVPN (1UL<<(63-32)) /* An avpn is provided as a sanity test */
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#define H_ANDCOND (1UL<<(63-33))
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#define H_LOCAL (1UL<<(63-35))
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#define H_ICACHE_INVALIDATE (1UL<<(63-40)) /* icbi, etc. (ignored for IO pages) */
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#define H_ICACHE_SYNCHRONIZE (1UL<<(63-41)) /* dcbst, icbi, etc (ignored for IO pages */
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#define H_COALESCE_CAND (1UL<<(63-42)) /* page is a good candidate for coalescing */
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#define H_ZERO_PAGE (1UL<<(63-48)) /* zero the page before mapping (ignored for IO pages) */
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#define H_COPY_PAGE (1UL<<(63-49))
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#define H_N (1UL<<(63-61))
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#define H_PP1 (1UL<<(63-62))
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#define H_PP2 (1UL<<(63-63))
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/* Flags for H_REGISTER_VPA subfunction field */
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#define H_VPA_FUNC_SHIFT (63-18) /* Bit posn of subfunction code */
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#define H_VPA_FUNC_MASK 7UL
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#define H_VPA_REG_VPA 1UL /* Register Virtual Processor Area */
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#define H_VPA_REG_DTL 2UL /* Register Dispatch Trace Log */
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#define H_VPA_REG_SLB 3UL /* Register SLB shadow buffer */
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#define H_VPA_DEREG_VPA 5UL /* Deregister Virtual Processor Area */
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#define H_VPA_DEREG_DTL 6UL /* Deregister Dispatch Trace Log */
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#define H_VPA_DEREG_SLB 7UL /* Deregister SLB shadow buffer */
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/* VASI States */
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#define H_VASI_INVALID 0
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#define H_VASI_ENABLED 1
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#define H_VASI_ABORTED 2
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#define H_VASI_SUSPENDING 3
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#define H_VASI_SUSPENDED 4
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#define H_VASI_RESUMED 5
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#define H_VASI_COMPLETED 6
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/* Each control block has to be on a 4K boundary */
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#define H_CB_ALIGNMENT 4096
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/* pSeries hypervisor opcodes */
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#define H_REMOVE 0x04
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#define H_ENTER 0x08
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#define H_READ 0x0c
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#define H_CLEAR_MOD 0x10
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#define H_CLEAR_REF 0x14
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#define H_PROTECT 0x18
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#define H_GET_TCE 0x1c
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#define H_PUT_TCE 0x20
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#define H_SET_SPRG0 0x24
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#define H_SET_DABR 0x28
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#define H_PAGE_INIT 0x2c
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#define H_SET_ASR 0x30
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#define H_ASR_ON 0x34
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#define H_ASR_OFF 0x38
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#define H_LOGICAL_CI_LOAD 0x3c
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#define H_LOGICAL_CI_STORE 0x40
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#define H_LOGICAL_CACHE_LOAD 0x44
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#define H_LOGICAL_CACHE_STORE 0x48
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#define H_LOGICAL_ICBI 0x4c
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#define H_LOGICAL_DCBF 0x50
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#define H_GET_TERM_CHAR 0x54
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#define H_PUT_TERM_CHAR 0x58
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#define H_REAL_TO_LOGICAL 0x5c
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#define H_HYPERVISOR_DATA 0x60
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#define H_EOI 0x64
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#define H_CPPR 0x68
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#define H_IPI 0x6c
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#define H_IPOLL 0x70
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#define H_XIRR 0x74
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#define H_PERFMON 0x7c
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#define H_MIGRATE_DMA 0x78
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#define H_REGISTER_VPA 0xDC
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#define H_CEDE 0xE0
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#define H_CONFER 0xE4
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#define H_PROD 0xE8
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#define H_GET_PPP 0xEC
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#define H_SET_PPP 0xF0
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#define H_PURR 0xF4
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#define H_PIC 0xF8
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#define H_REG_CRQ 0xFC
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#define H_FREE_CRQ 0x100
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#define H_VIO_SIGNAL 0x104
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#define H_SEND_CRQ 0x108
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#define H_COPY_RDMA 0x110
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#define H_REGISTER_LOGICAL_LAN 0x114
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#define H_FREE_LOGICAL_LAN 0x118
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#define H_ADD_LOGICAL_LAN_BUFFER 0x11C
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#define H_SEND_LOGICAL_LAN 0x120
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#define H_BULK_REMOVE 0x124
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#define H_MULTICAST_CTRL 0x130
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#define H_SET_XDABR 0x134
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#define H_STUFF_TCE 0x138
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#define H_PUT_TCE_INDIRECT 0x13C
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#define H_CHANGE_LOGICAL_LAN_MAC 0x14C
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#define H_VTERM_PARTNER_INFO 0x150
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#define H_REGISTER_VTERM 0x154
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#define H_FREE_VTERM 0x158
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#define H_RESET_EVENTS 0x15C
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#define H_ALLOC_RESOURCE 0x160
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#define H_FREE_RESOURCE 0x164
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#define H_MODIFY_QP 0x168
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#define H_QUERY_QP 0x16C
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#define H_REREGISTER_PMR 0x170
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#define H_REGISTER_SMR 0x174
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#define H_QUERY_MR 0x178
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#define H_QUERY_MW 0x17C
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#define H_QUERY_HCA 0x180
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#define H_QUERY_PORT 0x184
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#define H_MODIFY_PORT 0x188
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#define H_DEFINE_AQP1 0x18C
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#define H_GET_TRACE_BUFFER 0x190
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#define H_DEFINE_AQP0 0x194
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#define H_RESIZE_MR 0x198
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#define H_ATTACH_MCQP 0x19C
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#define H_DETACH_MCQP 0x1A0
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#define H_CREATE_RPT 0x1A4
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#define H_REMOVE_RPT 0x1A8
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#define H_REGISTER_RPAGES 0x1AC
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#define H_DISABLE_AND_GETC 0x1B0
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#define H_ERROR_DATA 0x1B4
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#define H_GET_HCA_INFO 0x1B8
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#define H_GET_PERF_COUNT 0x1BC
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#define H_MANAGE_TRACE 0x1C0
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#define H_FREE_LOGICAL_LAN_BUFFER 0x1D4
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#define H_QUERY_INT_STATE 0x1E4
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#define H_POLL_PENDING 0x1D8
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#define H_ILLAN_ATTRIBUTES 0x244
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#define H_MODIFY_HEA_QP 0x250
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#define H_QUERY_HEA_QP 0x254
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#define H_QUERY_HEA 0x258
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#define H_QUERY_HEA_PORT 0x25C
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#define H_MODIFY_HEA_PORT 0x260
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#define H_REG_BCMC 0x264
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#define H_DEREG_BCMC 0x268
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#define H_REGISTER_HEA_RPAGES 0x26C
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#define H_DISABLE_AND_GET_HEA 0x270
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#define H_GET_HEA_INFO 0x274
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#define H_ALLOC_HEA_RESOURCE 0x278
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#define H_ADD_CONN 0x284
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#define H_DEL_CONN 0x288
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#define H_JOIN 0x298
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#define H_VASI_STATE 0x2A4
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#define H_VIOCTL 0x2A8
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#define H_ENABLE_CRQ 0x2B0
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#define H_GET_EM_PARMS 0x2B8
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#define H_SET_MPP 0x2D0
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#define H_GET_MPP 0x2D4
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#define H_REG_SUB_CRQ 0x2DC
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#define H_HOME_NODE_ASSOCIATIVITY 0x2EC
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#define H_FREE_SUB_CRQ 0x2E0
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#define H_SEND_SUB_CRQ 0x2E4
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#define H_SEND_SUB_CRQ_INDIRECT 0x2E8
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#define H_BEST_ENERGY 0x2F4
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#define H_XIRR_X 0x2FC
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#define H_RANDOM 0x300
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#define H_COP 0x304
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#define H_GET_MPP_X 0x314
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#define H_SET_MODE 0x31C
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#define H_CLEAR_HPT 0x358
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#define H_RESIZE_HPT_PREPARE 0x36C
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#define H_RESIZE_HPT_COMMIT 0x370
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#define H_REGISTER_PROC_TBL 0x37C
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#define H_SIGNAL_SYS_RESET 0x380
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#define MAX_HCALL_OPCODE H_SIGNAL_SYS_RESET
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/* H_VIOCTL functions */
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#define H_GET_VIOA_DUMP_SIZE 0x01
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#define H_GET_VIOA_DUMP 0x02
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#define H_GET_ILLAN_NUM_VLAN_IDS 0x03
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#define H_GET_ILLAN_VLAN_ID_LIST 0x04
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#define H_GET_ILLAN_SWITCH_ID 0x05
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#define H_DISABLE_MIGRATION 0x06
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#define H_ENABLE_MIGRATION 0x07
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#define H_GET_PARTNER_INFO 0x08
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#define H_GET_PARTNER_WWPN_LIST 0x09
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#define H_DISABLE_ALL_VIO_INTS 0x0A
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#define H_DISABLE_VIO_INTERRUPT 0x0B
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#define H_ENABLE_VIO_INTERRUPT 0x0C
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#define H_GET_SESSION_TOKEN 0x19
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#define H_SESSION_ERR_DETECTED 0x1A
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/* Platform specific hcalls, used by KVM */
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#define H_RTAS 0xf000
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/* "Platform specific hcalls", provided by PHYP */
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#define H_GET_24X7_CATALOG_PAGE 0xF078
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#define H_GET_24X7_DATA 0xF07C
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#define H_GET_PERF_COUNTER_INFO 0xF080
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/* Values for 2nd argument to H_SET_MODE */
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#define H_SET_MODE_RESOURCE_SET_CIABR 1
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#define H_SET_MODE_RESOURCE_SET_DAWR 2
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#define H_SET_MODE_RESOURCE_ADDR_TRANS_MODE 3
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#define H_SET_MODE_RESOURCE_LE 4
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/* Values for argument to H_SIGNAL_SYS_RESET */
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#define H_SIGNAL_SYS_RESET_ALL -1
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#define H_SIGNAL_SYS_RESET_ALL_OTHERS -2
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/* >= 0 values are CPU number */
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/* Flag values used in H_REGISTER_PROC_TBL hcall */
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#define PROC_TABLE_OP_MASK 0x18
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#define PROC_TABLE_DEREG 0x10
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#define PROC_TABLE_NEW 0x18
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#define PROC_TABLE_TYPE_MASK 0x06
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#define PROC_TABLE_HPT_SLB 0x00
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#define PROC_TABLE_HPT_PT 0x02
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#define PROC_TABLE_RADIX 0x04
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#define PROC_TABLE_GTSE 0x01
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#ifndef __ASSEMBLY__
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/**
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* plpar_hcall_norets: - Make a pseries hypervisor call with no return arguments
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* @opcode: The hypervisor call to make.
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*
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* This call supports up to 7 arguments and only returns the status of
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* the hcall. Use this version where possible, its slightly faster than
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* the other plpar_hcalls.
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*/
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long plpar_hcall_norets(unsigned long opcode, ...);
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/**
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* plpar_hcall: - Make a pseries hypervisor call
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 4 return arguments in.
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*
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* This call supports up to 6 arguments and 4 return arguments. Use
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* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
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*
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* Used for all but the craziest of phyp interfaces (see plpar_hcall9)
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*/
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#define PLPAR_HCALL_BUFSIZE 4
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long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
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/**
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* plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 4 return arguments in.
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*
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* This call supports up to 6 arguments and 4 return arguments. Use
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* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
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*
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* Used when phyp interface needs to be called in real mode. Similar to
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* plpar_hcall, but plpar_hcall_raw works in real mode and does not
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* calculate hypervisor call statistics.
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*/
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long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
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/**
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* plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
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* @opcode: The hypervisor call to make.
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* @retbuf: Buffer to store up to 9 return arguments in.
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*
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* This call supports up to 9 arguments and 9 return arguments. Use
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* PLPAR_HCALL9_BUFSIZE to size the return argument buffer.
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*/
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#define PLPAR_HCALL9_BUFSIZE 9
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long plpar_hcall9(unsigned long opcode, unsigned long *retbuf, ...);
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long plpar_hcall9_raw(unsigned long opcode, unsigned long *retbuf, ...);
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struct hvcall_mpp_data {
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unsigned long entitled_mem;
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unsigned long mapped_mem;
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unsigned short group_num;
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unsigned short pool_num;
|
|
unsigned char mem_weight;
|
|
unsigned char unallocated_mem_weight;
|
|
unsigned long unallocated_entitlement; /* value in bytes */
|
|
unsigned long pool_size;
|
|
signed long loan_request;
|
|
unsigned long backing_mem;
|
|
};
|
|
|
|
int h_get_mpp(struct hvcall_mpp_data *);
|
|
|
|
struct hvcall_mpp_x_data {
|
|
unsigned long coalesced_bytes;
|
|
unsigned long pool_coalesced_bytes;
|
|
unsigned long pool_purr_cycles;
|
|
unsigned long pool_spurr_cycles;
|
|
unsigned long reserved[3];
|
|
};
|
|
|
|
int h_get_mpp_x(struct hvcall_mpp_x_data *mpp_x_data);
|
|
|
|
static inline unsigned int get_longbusy_msecs(int longbusy_rc)
|
|
{
|
|
switch (longbusy_rc) {
|
|
case H_LONG_BUSY_ORDER_1_MSEC:
|
|
return 1;
|
|
case H_LONG_BUSY_ORDER_10_MSEC:
|
|
return 10;
|
|
case H_LONG_BUSY_ORDER_100_MSEC:
|
|
return 100;
|
|
case H_LONG_BUSY_ORDER_1_SEC:
|
|
return 1000;
|
|
case H_LONG_BUSY_ORDER_10_SEC:
|
|
return 10000;
|
|
case H_LONG_BUSY_ORDER_100_SEC:
|
|
return 100000;
|
|
default:
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __KERNEL__ */
|
|
#endif /* _ASM_POWERPC_HVCALL_H */
|