From 659b4f155535f1dbe65171b65b63dd025e01f18f Mon Sep 17 00:00:00 2001 From: "Zhao, Yu" Date: Thu, 3 Jul 2008 17:39:16 +0800 Subject: [PATCH] PCI Express Device, Link and Slot 2 capabilities support Signed-off-by: Yu Zhao lib/header.h | 22 +++++++ lspci.c | 166 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 186 insertions(+), 2 deletions(-) --- lib/header.h | 22 +++++++ lspci.c | 166 ++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 186 insertions(+), 2 deletions(-) diff --git a/lib/header.h b/lib/header.h index a53eccc..b92baad 100644 --- a/lib/header.h +++ b/lib/header.h @@ -825,6 +825,28 @@ #define PCI_EXP_RTSTA_PME_REQID 0x0000ffff /* PME Requester ID */ #define PCI_EXP_RTSTA_PME_STATUS 0x00010000 /* PME Status */ #define PCI_EXP_RTSTA_PME_PENDING 0x00020000 /* PME is Pending */ +#define PCI_EXP_DEVCAP2 0x24 /* Device capabilities 2 */ +#define PCI_EXP_DEVCTL2 0x28 /* Device Control */ +#define PCI_EXP_DEV2_TIMEOUT_RANGE(x) ((x) & 0xf) /* Completion Timeout Ranges Supported */ +#define PCI_EXP_DEV2_TIMEOUT_VALUE(x) ((x) & 0xf) /* Completion Timeout Value */ +#define PCI_EXP_DEV2_TIMEOUT_DIS 0x0010 /* Completion Timeout Disable Supported */ +#define PCI_EXP_DEV2_ARI 0x0020 /* ARI Forwarding */ +#define PCI_EXP_DEVSTA2 0x2a /* Device Status */ +#define PCI_EXP_LNKCAP2 0x2c /* Link Capabilities */ +#define PCI_EXP_LNKCTL2 0x30 /* Link Control */ +#define PCI_EXP_LNKCTL2_SPEED(x) ((x) & 0xf) /* Target Link Speed */ +#define PCI_EXP_LNKCTL2_CMPLNC 0x0010 /* Enter Compliance */ +#define PCI_EXP_LNKCTL2_SPEED_DIS 0x0020 /* Hardware Autonomous Speed Disable */ +#define PCI_EXP_LNKCTL2_DEEMPHASIS(x) (((x) >> 6) & 1) /* Selectable De-emphasis */ +#define PCI_EXP_LNKCTL2_MARGIN(x) (((x) >> 7) & 7) /* Transmit Margin */ +#define PCI_EXP_LNKCTL2_MOD_CMPLNC 0x0400 /* Enter Modified Compliance */ +#define PCI_EXP_LNKCTL2_CMPLNC_SOS 0x0800 /* Compliance SOS */ +#define PCI_EXP_LNKCTL2_COM_DEEMPHASIS(x) (((x) >> 12) & 1) /* Compliance De-emphasis */ +#define PCI_EXP_LNKSTA2 0x32 /* Link Status */ +#define PCI_EXP_LINKSTA2_DEEMPHASIS(x) ((x) & 1) /* Current De-emphasis Level */ +#define PCI_EXP_SLTCAP2 0x34 /* Slot Capabilities */ +#define PCI_EXP_SLTCTL2 0x38 /* Slot Control */ +#define PCI_EXP_SLTSTA2 0x3a /* Slot Status */ /* MSI-X */ #define PCI_MSIX_ENABLE 0x8000 diff --git a/lspci.c b/lspci.c index 0515fcd..1d3018a 100644 --- a/lspci.c +++ b/lspci.c @@ -1038,8 +1038,6 @@ static void cap_express_dev(struct device *d, int where, int type) FLAG(w, PCI_EXP_DEVSTA_URD), FLAG(w, PCI_EXP_DEVSTA_AUXPD), FLAG(w, PCI_EXP_DEVSTA_TRPND)); - - /* FIXME: Second set of control/status registers is not supported yet. */ } static char *link_speed(int speed) @@ -1195,6 +1193,156 @@ static void cap_express_root(struct device *d, int where) FLAG(w, PCI_EXP_RTSTA_PME_PENDING)); } +static const char *cap_express_dev2_timeout_range(int type) +{ + /* Decode Completion Timeout Ranges. */ + switch (type) + { + case 0: + return "Not Supported"; + case 1: + return "Range A"; + case 2: + return "Range B"; + case 3: + return "Range AB"; + case 6: + return "Range BC"; + case 7: + return "Range ABC"; + case 14: + return "Range BCD"; + case 15: + return "Range ABCD"; + default: + return "Unknown"; + } +} + +static const char *cap_express_dev2_timeout_value(int type) +{ + /* Decode Completion Timeout Value. */ + switch (type) + { + case 0: + return "50us to 50ms"; + case 1: + return "50us to 100us"; + case 2: + return "1ms to 10ms"; + case 5: + return "16ms to 55ms"; + case 6: + return "65ms to 210ms"; + case 9: + return "260ms to 900ms"; + case 10: + return "1s to 3.5s"; + case 13: + return "4s to 13s"; + case 14: + return "17s to 64s"; + default: + return "Unknown"; + } +} + +static void cap_express_dev2(struct device *d, int where, int type) +{ + u32 l; + u16 w; + + l = get_conf_long(d, where + PCI_EXP_DEVCAP2); + printf("\t\tDevCap2: Completion Timeout: %s, TimeoutDis%c", + cap_express_dev2_timeout_range(PCI_EXP_DEV2_TIMEOUT_RANGE(l)), + FLAG(l, PCI_EXP_DEV2_TIMEOUT_DIS)); + if (type == PCI_EXP_TYPE_ROOT_PORT || type == PCI_EXP_TYPE_DOWNSTREAM) + printf(" ARIFwd%c\n", FLAG(l, PCI_EXP_DEV2_ARI)); + else + printf("\n"); + + w = get_conf_word(d, where + PCI_EXP_DEVCTL2); + printf("\t\tDevCtl2: Completion Timeout: %s, TimeoutDis%c", + cap_express_dev2_timeout_value(PCI_EXP_DEV2_TIMEOUT_VALUE(w)), + FLAG(w, PCI_EXP_DEV2_TIMEOUT_DIS)); + if (type == PCI_EXP_TYPE_ROOT_PORT || type == PCI_EXP_TYPE_DOWNSTREAM) + printf(" ARIFwd%c\n", FLAG(w, PCI_EXP_DEV2_ARI)); + else + printf("\n"); +} + +static const char *cap_express_link2_speed(int type) +{ + switch (type) + { + case 0: /* hardwire to 0 means only the 2.5GT/s is supported */ + case 1: + return "2.5GT/s"; + case 2: + return "5GT/s"; + default: + return "Unknown"; + } +} + +static const char *cap_express_link2_deemphasis(int type) +{ + switch (type) + { + case 0: + return "-6dB"; + case 1: + return "-3.5dB"; + default: + return "Unknown"; + } +} + +static const char *cap_express_link2_transmargin(int type) +{ + switch (type) + { + case 0: + return "Normal Operating Range"; + case 1: + return "800-1200mV(full-swing)/400-700mV(half-swing)"; + case 2: + case 3: + case 4: + case 5: + return "200-400mV(full-swing)/100-200mV(half-swing)"; + default: + return "Unknown"; + } +} + +static void cap_express_link2(struct device *d, int where, int type UNUSED) +{ + u16 w; + + w = get_conf_word(d, where + PCI_EXP_LNKCTL2); + printf("\t\tLnkCtl2: Target Link Speed: %s, EnterCompliance%c SpeedDis%c, Selectable De-emphasis: %s\n" + "\t\t\t Transmit Margin: %s, EnterModifiedCompliance%c ComplianceSOS%c\n" + "\t\t\t Compliance De-emphasis: %s\n", + cap_express_link2_speed(PCI_EXP_LNKCTL2_SPEED(w)), + FLAG(w, PCI_EXP_LNKCTL2_CMPLNC), + FLAG(w, PCI_EXP_LNKCTL2_SPEED_DIS), + cap_express_link2_deemphasis(PCI_EXP_LNKCTL2_DEEMPHASIS(w)), + cap_express_link2_transmargin(PCI_EXP_LNKCTL2_MARGIN(w)), + FLAG(w, PCI_EXP_LNKCTL2_MOD_CMPLNC), + FLAG(w, PCI_EXP_LNKCTL2_CMPLNC_SOS), + cap_express_link2_deemphasis(PCI_EXP_LNKCTL2_COM_DEEMPHASIS(w))); + + w = get_conf_word(d, where + PCI_EXP_LNKSTA2); + printf("\t\tLnkSta2: Current De-emphasis Level: %s\n", + cap_express_link2_deemphasis(PCI_EXP_LINKSTA2_DEEMPHASIS(w))); +} + +static void cap_express_slot2(struct device *d UNUSED, int where UNUSED) +{ + /* No capabilities that require this field in PCIe rev2.0 spec. */ +} + static void cap_express(struct device *d, int where, int cap) { @@ -1257,6 +1405,20 @@ cap_express(struct device *d, int where, int cap) cap_express_slot(d, where); if (type == PCI_EXP_TYPE_ROOT_PORT) cap_express_root(d, where); + + if ((cap & PCI_EXP_FLAGS_VERS) < 2) + return; + + size = 16; + if (slot) + size = 24; + if (!config_fetch(d, where + PCI_EXP_DEVCAP2, size)) + return; + + cap_express_dev2(d, where, type); + cap_express_link2(d, where, type); + if (slot) + cap_express_slot2(d, where); } static void -- 2.39.2