a4e2fff1b1
The zPCI group and function structures are big endian. However, we do not consistently store them as big endian locally, and are missing some conversions. Let's just store the structures as host endian instead and convert to big endian when actually handling the instructions retrieving the data. Also fix the layout of ClpReqQueryPciGrp: g is actually only 8 bit. This also fixes accesses on little endian hosts, and makes accesses on big endian hosts consistent. Fixes:28dc86a072("s390x/pci: use a PCI Group structure") Fixes:9670ee7527("s390x/pci: use a PCI Function structure") Fixes:1e7552ff5c("s390x/pci: get zPCI function info from host") Signed-off-by: Cornelia Huck <cohuck@redhat.com> Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> Tested-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20201118104202.1301363-1-cohuck@redhat.com>
216 lines
6 KiB
C
216 lines
6 KiB
C
/*
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* s390 CLP instruction definitions
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*
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* Copyright 2019 IBM Corp.
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* Author(s): Pierre Morel <pmorel@de.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or (at
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* your option) any later version. See the COPYING file in the top-level
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* directory.
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*/
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#ifndef HW_S390_PCI_CLP
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#define HW_S390_PCI_CLP
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/* CLP common request & response block size */
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#define CLP_BLK_SIZE 4096
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#define PCI_BAR_COUNT 6
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#define PCI_MAX_FUNCTIONS 4096
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typedef struct ClpReqHdr {
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uint16_t len;
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uint16_t cmd;
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} QEMU_PACKED ClpReqHdr;
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typedef struct ClpRspHdr {
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uint16_t len;
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uint16_t rsp;
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} QEMU_PACKED ClpRspHdr;
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/* CLP Response Codes */
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#define CLP_RC_OK 0x0010 /* Command request successfully */
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#define CLP_RC_CMD 0x0020 /* Command code not recognized */
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#define CLP_RC_PERM 0x0030 /* Command not authorized */
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#define CLP_RC_FMT 0x0040 /* Invalid command request format */
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#define CLP_RC_LEN 0x0050 /* Invalid command request length */
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#define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */
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#define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */
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#define CLP_RC_NODATA 0x0080 /* No data available */
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#define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */
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/*
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* Call Logical Processor - Command Codes
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*/
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#define CLP_LIST_PCI 0x0002
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#define CLP_QUERY_PCI_FN 0x0003
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#define CLP_QUERY_PCI_FNGRP 0x0004
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#define CLP_SET_PCI_FN 0x0005
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/* PCI function handle list entry */
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typedef struct ClpFhListEntry {
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uint16_t device_id;
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uint16_t vendor_id;
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#define CLP_FHLIST_MASK_CONFIG 0x80000000
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uint32_t config;
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uint32_t fid;
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uint32_t fh;
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} QEMU_PACKED ClpFhListEntry;
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#define CLP_RC_SETPCIFN_FH 0x0101 /* Invalid PCI fn handle */
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#define CLP_RC_SETPCIFN_FHOP 0x0102 /* Fn handle not valid for op */
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#define CLP_RC_SETPCIFN_DMAAS 0x0103 /* Invalid DMA addr space */
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#define CLP_RC_SETPCIFN_RES 0x0104 /* Insufficient resources */
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#define CLP_RC_SETPCIFN_ALRDY 0x0105 /* Fn already in requested state */
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#define CLP_RC_SETPCIFN_ERR 0x0106 /* Fn in permanent error state */
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#define CLP_RC_SETPCIFN_RECPND 0x0107 /* Error recovery pending */
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#define CLP_RC_SETPCIFN_BUSY 0x0108 /* Fn busy */
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#define CLP_RC_LISTPCI_BADRT 0x010a /* Resume token not recognized */
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#define CLP_RC_QUERYPCIFG_PFGID 0x010b /* Unrecognized PFGID */
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/* request or response block header length */
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#define LIST_PCI_HDR_LEN 32
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/* Number of function handles fitting in response block */
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#define CLP_FH_LIST_NR_ENTRIES \
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((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN) \
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/ sizeof(ClpFhListEntry))
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#define CLP_SET_ENABLE_PCI_FN 0 /* Yes, 0 enables it */
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#define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */
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#define CLP_UTIL_STR_LEN 64
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#define CLP_PFIP_NR_SEGMENTS 4
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#define CLP_MASK_FMT 0xf0000000
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/* List PCI functions request */
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typedef struct ClpReqListPci {
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ClpReqHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint64_t resume_token;
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uint64_t reserved2;
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} QEMU_PACKED ClpReqListPci;
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/* List PCI functions response */
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typedef struct ClpRspListPci {
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ClpRspHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint64_t resume_token;
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uint32_t mdd;
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uint16_t max_fn;
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uint8_t flags;
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uint8_t entry_size;
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ClpFhListEntry fh_list[CLP_FH_LIST_NR_ENTRIES];
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} QEMU_PACKED ClpRspListPci;
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/* Query PCI function request */
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typedef struct ClpReqQueryPci {
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ClpReqHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint32_t fh; /* function handle */
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uint32_t reserved2;
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uint64_t reserved3;
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} QEMU_PACKED ClpReqQueryPci;
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/* Query PCI function response */
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typedef struct ClpRspQueryPci {
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ClpRspHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint16_t vfn; /* virtual fn number */
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#define CLP_RSP_QPCI_MASK_UTIL 0x01
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uint8_t flags;
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uint8_t pfgid;
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uint32_t fid; /* pci function id */
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uint8_t bar_size[PCI_BAR_COUNT];
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uint16_t pchid;
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uint32_t bar[PCI_BAR_COUNT];
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uint8_t pfip[CLP_PFIP_NR_SEGMENTS];
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uint16_t reserved2;
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uint8_t fmbl;
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uint8_t pft;
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uint64_t sdma; /* start dma as */
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uint64_t edma; /* end dma as */
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uint32_t reserved3[11];
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uint32_t uid;
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uint8_t util_str[CLP_UTIL_STR_LEN]; /* utility string */
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} QEMU_PACKED ClpRspQueryPci;
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/* Query PCI function group request */
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typedef struct ClpReqQueryPciGrp {
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ClpReqHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint8_t reserved2[3];
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uint8_t g;
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uint32_t reserved3;
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uint64_t reserved4;
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} QEMU_PACKED ClpReqQueryPciGrp;
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/* Query PCI function group response */
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typedef struct ClpRspQueryPciGrp {
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ClpRspHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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#define CLP_RSP_QPCIG_MASK_NOI 0xfff
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uint16_t i;
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uint8_t version;
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#define CLP_RSP_QPCIG_MASK_FRAME 0x2
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#define CLP_RSP_QPCIG_MASK_REFRESH 0x1
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uint8_t fr;
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uint16_t maxstbl;
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uint16_t mui;
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uint64_t reserved3;
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uint64_t dasm; /* dma address space mask */
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uint64_t msia; /* MSI address */
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uint64_t reserved4;
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uint64_t reserved5;
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} QEMU_PACKED ClpRspQueryPciGrp;
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/* Set PCI function request */
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typedef struct ClpReqSetPci {
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ClpReqHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint32_t fh; /* function handle */
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uint16_t reserved2;
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uint8_t oc; /* operation controls */
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uint8_t ndas; /* number of dma spaces */
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uint64_t reserved3;
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} QEMU_PACKED ClpReqSetPci;
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/* Set PCI function response */
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typedef struct ClpRspSetPci {
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ClpRspHdr hdr;
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uint32_t fmt;
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uint64_t reserved1;
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uint32_t fh; /* function handle */
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uint32_t reserved3;
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uint64_t reserved4;
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} QEMU_PACKED ClpRspSetPci;
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typedef struct ClpReqRspListPci {
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ClpReqListPci request;
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ClpRspListPci response;
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} QEMU_PACKED ClpReqRspListPci;
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typedef struct ClpReqRspSetPci {
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ClpReqSetPci request;
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ClpRspSetPci response;
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} QEMU_PACKED ClpReqRspSetPci;
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typedef struct ClpReqRspQueryPci {
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ClpReqQueryPci request;
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ClpRspQueryPci response;
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} QEMU_PACKED ClpReqRspQueryPci;
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typedef struct ClpReqRspQueryPciGrp {
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ClpReqQueryPciGrp request;
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ClpRspQueryPciGrp response;
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} QEMU_PACKED ClpReqRspQueryPciGrp;
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#endif
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