/*
* The PCI Utilities -- Show Extended Capabilities
*
- * Copyright (c) 1997--2008 Martin Mares <mj@ucw.cz>
+ * Copyright (c) 1997--2010 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#include "lspci.h"
+static void
+cap_tph(struct device *d, int where)
+{
+ u32 tph_cap;
+ printf("Transaction Processing Hints\n");
+ if (verbose < 2)
+ return;
+
+ if (!config_fetch(d, where + PCI_TPH_CAPABILITIES, 4))
+ return;
+
+ tph_cap = get_conf_long(d, where + PCI_TPH_CAPABILITIES);
+
+ if (tph_cap & PCI_TPH_INTVEC_SUP)
+ printf("\t\tInterrupt vector mode supported\n");
+ if (tph_cap & PCI_TPH_DEV_SUP)
+ printf("\t\tDevice specific mode supported\n");
+ if (tph_cap & PCI_TPH_EXT_REQ_SUP)
+ printf("\t\tExtended requester support\n");
+
+ switch (tph_cap & PCI_TPH_ST_LOC_MASK) {
+ case PCI_TPH_ST_NONE:
+ printf("\t\tNo steering table available\n");
+ break;
+ case PCI_TPH_ST_CAP:
+ printf("\t\tSteering table in TPH capability structure\n");
+ break;
+ case PCI_TPH_ST_MSIX:
+ printf("\t\tSteering table in MSI-X table\n");
+ break;
+ default:
+ printf("\t\tReserved steering table location\n");
+ break;
+ }
+}
+
+static u32
+cap_ltr_scale(u8 scale)
+{
+ return 1 << (scale * 5);
+}
+
+static void
+cap_ltr(struct device *d, int where)
+{
+ u32 scale;
+ u16 snoop, nosnoop;
+ printf("Latency Tolerance Reporting\n");
+ if (verbose < 2)
+ return;
+
+ if (!config_fetch(d, where + PCI_LTR_MAX_SNOOP, 4))
+ return;
+
+ snoop = get_conf_word(d, where + PCI_LTR_MAX_SNOOP);
+ scale = cap_ltr_scale((snoop >> PCI_LTR_SCALE_SHIFT) & PCI_LTR_SCALE_MASK);
+ printf("\t\tMax snoop latency: %lldns\n",
+ ((unsigned long long)snoop & PCI_LTR_VALUE_MASK) * scale);
+
+ nosnoop = get_conf_word(d, where + PCI_LTR_MAX_NOSNOOP);
+ scale = cap_ltr_scale((nosnoop >> PCI_LTR_SCALE_SHIFT) & PCI_LTR_SCALE_MASK);
+ printf("\t\tMax no snoop latency: %lldns\n",
+ ((unsigned long long)nosnoop & PCI_LTR_VALUE_MASK) * scale);
+}
+
static void
cap_dsn(struct device *d, int where)
{
int arb_table_pos;
int i, j;
static const char ref_clocks[][6] = { "100ns" };
- static const char arb_selects[][7] = { "Fixed", "WRR32", "WRR64", "WRR128" };
- static const char vc_arb_selects[][8] = { "Fixed", "WRR32", "WRR64", "WRR128", "TWRR128", "WRR256" };
+ static const char arb_selects[8][7] = { "Fixed", "WRR32", "WRR64", "WRR128", "??4", "??5", "??6", "??7" };
+ static const char vc_arb_selects[8][8] = { "Fixed", "WRR32", "WRR64", "WRR128", "TWRR128", "WRR256", "??6", "??7" };
char buf[8];
printf("Virtual Channel\n");
status = get_conf_word(d, where + PCI_VC_PORT_STATUS);
evc_cnt = BITS(cr1, 0, 3);
- printf("\t\tCaps:\tLPEVC=%d RefClk=%s PATEntrySize=%d\n",
+ printf("\t\tCaps:\tLPEVC=%d RefClk=%s PATEntryBits=%d\n",
BITS(cr1, 4, 3),
TABLE(ref_clocks, BITS(cr1, 8, 2), buf),
- BITS(cr1, 10, 2));
+ 1 << BITS(cr1, 10, 2));
- printf("\t\tArb:\t");
+ printf("\t\tArb:");
for (i=0; i<8; i++)
if (arb_selects[i][0] != '?' || cr2 & (1 << i))
- printf("%s%c ", arb_selects[i], FLAG(cr2, 1 << i));
+ printf("%c%s%c", (i ? ' ' : '\t'), arb_selects[i], FLAG(cr2, 1 << i));
arb_table_pos = BITS(cr2, 24, 8);
- printf("TableOffset=%x\n", arb_table_pos);
- printf("\t\tCtrl:\tArbSelect=%s\n", TABLE(arb_selects, BITS(ctrl, 1, 3), buf));
+ printf("\n\t\tCtrl:\tArbSelect=%s\n", TABLE(arb_selects, BITS(ctrl, 1, 3), buf));
printf("\t\tStatus:\tInProgress%c\n", FLAG(status, 1));
if (arb_table_pos)
- printf("\t\tPort Arbitration Table <?>\n");
+ {
+ arb_table_pos = where + 16*arb_table_pos;
+ printf("\t\tPort Arbitration Table [%x] <?>\n", arb_table_pos);
+ }
for (i=0; i<=evc_cnt; i++)
{
}
}
+static void
+cap_evendor(struct device *d, int where)
+{
+ u32 hdr;
+
+ printf("Vendor Specific Information: ");
+ if (!config_fetch(d, where + PCI_EVNDR_HEADER, 4))
+ {
+ printf("<unreadable>\n");
+ return;
+ }
+
+ hdr = get_conf_long(d, where + PCI_EVNDR_HEADER);
+ printf("ID=%04x Rev=%d Len=%03x <?>\n",
+ BITS(hdr, 0, 16),
+ BITS(hdr, 16, 4),
+ BITS(hdr, 20, 12));
+}
+
void
show_ext_caps(struct device *d)
{
printf("Root Bridge Control Block <?>\n");
break;
case PCI_EXT_CAP_ID_VNDR:
- printf("Vendor Specific Information <?>\n");
+ cap_evendor(d, where);
break;
case PCI_EXT_CAP_ID_ACS:
cap_acs(d, where);
case PCI_EXT_CAP_ID_SRIOV:
cap_sriov(d, where);
break;
+ case PCI_EXT_CAP_ID_TPH:
+ cap_tph(d, where);
+ break;
+ case PCI_EXT_CAP_ID_LTR:
+ cap_ltr(d, where);
+ break;
default:
printf("#%02x\n", id);
break;