Allow AHCI controller to support up to 32 arbitrary devices.
While old syntax is still supported, new syntax looks like this: -s 3,ahci,hd:/dev/zvol/XXX,hd:/dev/zvol/YYY,cd:/storage/ZZZ.iso Sponsored by: iXsystems, Inc.
This commit is contained in:
Alexander Motin
parent
dcc88911a9
commit
098f5155d1
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=302459
@ -24,7 +24,7 @@
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.\"
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.\" $FreeBSD$
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.\"
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.Dd June 24, 2016
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.Dd July 8, 2016
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.Dt BHYVE 8
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.Os
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.Sh NAME
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@ -171,6 +171,8 @@ Virtio network interface.
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Virtio block storage interface.
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.It Li virtio-rnd
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Virtio RNG interface.
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.It Li ahci
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AHCI controller attached to arbitraty devices.
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.It Li ahci-cd
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AHCI controller attached to an ATAPI CD/DVD.
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.It Li ahci-hd
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@ -347,15 +349,11 @@ null-modem device.
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.Bd -literal -offset indent
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bhyve -c 4 \\
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-s 0,amd_hostbridge -s 1,lpc \\
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-s 1:0,ahci-hd,/images/disk.1 \\
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-s 1:1,ahci-hd,/images/disk.2 \\
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-s 1:2,ahci-hd,/images/disk.3 \\
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-s 1:3,ahci-hd,/images/disk.4 \\
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-s 1:4,ahci-hd,/images/disk.5 \\
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-s 1:5,ahci-hd,/images/disk.6 \\
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-s 1:6,ahci-hd,/images/disk.7 \\
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-s 1:7,ahci-hd,/images/disk.8 \\
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-s 2,ahci-cd,/images/install.iso \\
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-s 1:0,ahci,hd:/images/disk.1,hd:/images/disk.2,\\
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hd:/images/disk.3,hd:/images/disk.4,\\
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hd:/images/disk.5,hd:/images/disk.6,\\
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hd:/images/disk.7,hd:/images/disk.8,\\
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cd:/images/install.iso \\
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-s 3,virtio-net,tap0 \\
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-l com1,/dev/nmdm0A \\
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-A -H -P -m 8G
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@ -1,5 +1,6 @@
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/*-
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* Copyright (c) 2013 Zhixiang Yu <zcore@freebsd.org>
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* Copyright (c) 2015-2016 Alexander Motin <mav@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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@ -57,7 +58,8 @@ __FBSDID("$FreeBSD$");
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#include "ahci.h"
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#include "block_if.h"
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#define MAX_PORTS 6 /* Intel ICH8 AHCI supports 6 ports */
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#define DEF_PORTS 6 /* Intel ICH8 AHCI supports 6 ports */
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#define MAX_PORTS 32 /* AHCI supports 32 ports */
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#define PxSIG_ATA 0x00000101 /* ATA drive */
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#define PxSIG_ATAPI 0xeb140101 /* ATAPI drive */
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@ -2221,20 +2223,16 @@ pci_ahci_read(struct vmctx *ctx, int vcpu, struct pci_devinst *pi, int baridx,
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static int
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pci_ahci_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts, int atapi)
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{
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char bident[sizeof("XX:X:X")];
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char bident[sizeof("XX:XX:XX")];
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struct blockif_ctxt *bctxt;
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struct pci_ahci_softc *sc;
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int ret, slots;
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int ret, slots, p;
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MD5_CTX mdctx;
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u_char digest[16];
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char *next, *next2;
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ret = 0;
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if (opts == NULL) {
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fprintf(stderr, "pci_ahci: backing device required\n");
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return (1);
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}
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#ifdef AHCI_DEBUG
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dbg = fopen("/tmp/log", "w+");
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#endif
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@ -2242,58 +2240,83 @@ pci_ahci_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts, int atapi)
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sc = calloc(1, sizeof(struct pci_ahci_softc));
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pi->pi_arg = sc;
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sc->asc_pi = pi;
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sc->ports = MAX_PORTS;
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/*
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* Only use port 0 for a backing device. All other ports will be
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* marked as unused
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*/
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sc->port[0].atapi = atapi;
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/*
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* Attempt to open the backing image. Use the PCI
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* slot/func for the identifier string.
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*/
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snprintf(bident, sizeof(bident), "%d:%d", pi->pi_slot, pi->pi_func);
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bctxt = blockif_open(opts, bident);
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if (bctxt == NULL) {
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ret = 1;
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goto open_fail;
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}
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sc->port[0].bctx = bctxt;
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sc->port[0].pr_sc = sc;
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/*
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* Create an identifier for the backing file. Use parts of the
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* md5 sum of the filename
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*/
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MD5Init(&mdctx);
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MD5Update(&mdctx, opts, strlen(opts));
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MD5Final(digest, &mdctx);
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sprintf(sc->port[0].ident, "BHYVE-%02X%02X-%02X%02X-%02X%02X",
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digest[0], digest[1], digest[2], digest[3], digest[4], digest[5]);
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/*
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* Allocate blockif request structures and add them
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* to the free list
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*/
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pci_ahci_ioreq_init(&sc->port[0]);
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pthread_mutex_init(&sc->mtx, NULL);
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sc->ports = 0;
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sc->pi = 0;
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slots = 32;
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for (p = 0; p < MAX_PORTS && opts != NULL; p++, opts = next) {
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/* Identify and cut off type of present port. */
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if (strncmp(opts, "hd:", 3) == 0) {
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atapi = 0;
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opts += 3;
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} else if (strncmp(opts, "cd:", 3) == 0) {
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atapi = 1;
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opts += 3;
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}
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/* Find and cut off the next port options. */
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next = strstr(opts, ",hd:");
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next2 = strstr(opts, ",cd:");
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if (next == NULL || (next2 != NULL && next2 < next))
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next = next2;
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if (next != NULL) {
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next[0] = 0;
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next++;
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}
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if (opts[0] == 0)
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continue;
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/*
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* Attempt to open the backing image. Use the PCI slot/func
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* and the port number for the identifier string.
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*/
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snprintf(bident, sizeof(bident), "%d:%d:%d", pi->pi_slot,
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pi->pi_func, p);
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bctxt = blockif_open(opts, bident);
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if (bctxt == NULL) {
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sc->ports = p;
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ret = 1;
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goto open_fail;
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}
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sc->port[p].bctx = bctxt;
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sc->port[p].pr_sc = sc;
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sc->port[p].atapi = atapi;
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/*
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* Create an identifier for the backing file.
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* Use parts of the md5 sum of the filename
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*/
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MD5Init(&mdctx);
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MD5Update(&mdctx, opts, strlen(opts));
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MD5Final(digest, &mdctx);
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sprintf(sc->port[p].ident, "BHYVE-%02X%02X-%02X%02X-%02X%02X",
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digest[0], digest[1], digest[2], digest[3], digest[4],
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digest[5]);
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/*
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* Allocate blockif request structures and add them
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* to the free list
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*/
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pci_ahci_ioreq_init(&sc->port[p]);
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sc->pi |= (1 << p);
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if (sc->port[p].ioqsz < slots)
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slots = sc->port[p].ioqsz;
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}
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sc->ports = p;
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/* Intel ICH8 AHCI */
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slots = sc->port[0].ioqsz;
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if (slots > 32)
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slots = 32;
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--slots;
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if (sc->ports < DEF_PORTS)
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sc->ports = DEF_PORTS;
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sc->cap = AHCI_CAP_64BIT | AHCI_CAP_SNCQ | AHCI_CAP_SSNTF |
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AHCI_CAP_SMPS | AHCI_CAP_SSS | AHCI_CAP_SALP |
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AHCI_CAP_SAL | AHCI_CAP_SCLO | (0x3 << AHCI_CAP_ISS_SHIFT)|
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AHCI_CAP_PMD | AHCI_CAP_SSC | AHCI_CAP_PSC |
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(slots << AHCI_CAP_NCS_SHIFT) | AHCI_CAP_SXS | (sc->ports - 1);
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/* Only port 0 implemented */
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sc->pi = 1;
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sc->vs = 0x10300;
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sc->cap2 = AHCI_CAP2_APST;
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ahci_reset(sc);
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@ -2311,8 +2334,10 @@ pci_ahci_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts, int atapi)
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open_fail:
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if (ret) {
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if (sc->port[0].bctx != NULL)
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blockif_close(sc->port[0].bctx);
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for (p = 0; p < sc->ports; p++) {
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if (sc->port[p].bctx != NULL)
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blockif_close(sc->port[p].bctx);
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}
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free(sc);
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}
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@ -2336,6 +2361,14 @@ pci_ahci_atapi_init(struct vmctx *ctx, struct pci_devinst *pi, char *opts)
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/*
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* Use separate emulation names to distinguish drive and atapi devices
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*/
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struct pci_devemu pci_de_ahci = {
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.pe_emu = "ahci",
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.pe_init = pci_ahci_hd_init,
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.pe_barwrite = pci_ahci_write,
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.pe_barread = pci_ahci_read
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};
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PCI_EMUL_SET(pci_de_ahci);
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struct pci_devemu pci_de_ahci_hd = {
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.pe_emu = "ahci-hd",
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.pe_init = pci_ahci_hd_init,
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