Date: Mon, 7 Nov 2022 21:21:29 GMT From: Navdeep Parhar <np@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org Subject: git: 118cfb829f35 - main - pciconf(8): Decode ACS extended capability. Message-ID: <202211072121.2A7LLTJ7051360@gitrepo.freebsd.org>
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The branch main has been updated by np: URL: https://cgit.FreeBSD.org/src/commit/?id=118cfb829f355a4545f079f12bab5ea8e41fe214 commit 118cfb829f355a4545f079f12bab5ea8e41fe214 Author: Navdeep Parhar <np@FreeBSD.org> AuthorDate: 2022-11-04 19:30:09 +0000 Commit: Navdeep Parhar <np@FreeBSD.org> CommitDate: 2022-11-07 21:20:22 +0000 pciconf(8): Decode ACS extended capability. MFC after: 1 week Sponsored by: Chelsio Communications Reviewed by: kib@ Differential Revision: https://reviews.freebsd.org/D37271 --- usr.sbin/pciconf/cap.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/usr.sbin/pciconf/cap.c b/usr.sbin/pciconf/cap.c index eae53acbd250..3d28fe9bc331 100644 --- a/usr.sbin/pciconf/cap.c +++ b/usr.sbin/pciconf/cap.c @@ -1016,6 +1016,64 @@ ecap_sriov(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) print_bar(fd, p, "iov bar ", ptr + PCIR_SRIOV_BAR(i)); } +static const char * +check_avail_and_state(u_int cap, u_int capbit, u_int ctl, u_int ctlbit) +{ + + if (cap & capbit) + return (ctl & ctlbit ? "enabled" : "disabled"); + else + return "unavailable"; +} + +static void +ecap_acs(int fd, struct pci_conf *p, uint16_t ptr, uint8_t ver) +{ + uint16_t acs_cap, acs_ctl; + static const char *const acc[] = { "access enabled", "blocking enabled", + "redirect enabled", "reserved" }; + + printf("ACS %d ", ver); + if (ver != 1) { + printf("\n"); + return; + } + +#define CHECK_AVAIL_STATE(bit) \ + check_avail_and_state(acs_cap, bit, acs_ctl, bit##_ENABLE) + + acs_cap = read_config(fd, &p->pc_sel, ptr + PCIR_ACS_CAP, 2); + acs_ctl = read_config(fd, &p->pc_sel, ptr + PCIR_ACS_CTL, 2); + printf("Source Validation %s, Translation Blocking %s\n", + CHECK_AVAIL_STATE(PCIM_ACS_SOURCE_VALIDATION), + CHECK_AVAIL_STATE(PCIM_ACS_TRANSLATION_BLOCKING)); + + printf(" "); + printf("P2P Req Redirect %s, P2P Cmpl Redirect %s\n", + CHECK_AVAIL_STATE(PCIM_ACS_P2P_REQ_REDIRECT), + CHECK_AVAIL_STATE(PCIM_ACS_P2P_CMP_REDIRECT)); + printf(" "); + printf("P2P Upstream Forwarding %s, P2P Egress Control %s\n", + CHECK_AVAIL_STATE(PCIM_ACS_P2P_UPSTREAM_FORWARDING), + CHECK_AVAIL_STATE(PCIM_ACS_P2P_EGRESS_CTL)); + printf(" "); + printf("P2P Direct Translated %s, Enhanced Capability %s\n", + CHECK_AVAIL_STATE(PCIM_ACS_P2P_DIRECT_TRANSLATED), + acs_ctl & PCIM_ACS_ENHANCED_CAP ? "available" : "unavailable"); +#undef CHECK_AVAIL_STATE + + if (acs_cap & PCIM_ACS_ENHANCED_CAP) { + printf(" "); + printf("I/O Req Blocking %s, Unclaimed Req Redirect Control %s\n", + check_enabled(acs_ctl & PCIM_ACS_IO_REQ_BLOCKING_ENABLE), + check_enabled(acs_ctl & PCIM_ACS_UNCLAIMED_REQ_REDIRECT_CTL)); + printf(" "); + printf("DSP BAR %s, USP BAR %s\n", + acc[(acs_cap & PCIM_ACS_DSP_MEM_TGT_ACC_CTL) >> 8], + acc[(acs_cap & PCIM_ACS_USP_MEM_TGT_ACC_CTL) >> 10]); + } +} + static struct { uint16_t id; const char *name; @@ -1099,6 +1157,9 @@ list_ecaps(int fd, struct pci_conf *p) case PCIZ_SRIOV: ecap_sriov(fd, p, ptr, PCI_EXTCAP_VER(ecap)); break; + case PCIZ_ACS: + ecap_acs(fd, p, ptr, PCI_EXTCAP_VER(ecap)); + break; default: name = "unknown"; for (i = 0; ecap_names[i].name != NULL; i++)
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