/*
* The PCI Utilities -- Show Extended Capabilities
*
- * Copyright (c) 1997--2010 Martin Mares <mj@ucw.cz>
+ * Copyright (c) 1997--2020 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
}
static void
-cap_cxl(struct device *d, int where)
+cap_rcec(struct device *d, int where)
+{
+ printf("Root Complex Event Collector Endpoint Association\n");
+ if (verbose < 2)
+ return;
+
+ if (!config_fetch(d, where, 12))
+ return;
+
+ u32 hdr = get_conf_long(d, where);
+ byte cap_ver = PCI_RCEC_EP_CAP_VER(hdr);
+ u32 bmap = get_conf_long(d, where + PCI_RCEC_RCIEP_BMAP);
+ printf("\t\tRCiEPBitmap: ");
+ if (bmap)
+ {
+ int prevmatched=0;
+ int adjcount=0;
+ int prevdev=0;
+ printf("RCiEP at Device(s):");
+ for (int dev=0; dev < 32; dev++)
+ {
+ if (BITS(bmap, dev, 1))
+ {
+ if (!adjcount)
+ printf("%s %u", (prevmatched) ? "," : "", dev);
+ adjcount++;
+ prevdev=dev;
+ prevmatched=1;
+ }
+ else
+ {
+ if (adjcount > 1)
+ printf("-%u", prevdev);
+ adjcount=0;
+ }
+ }
+ }
+ else
+ printf("%s", (verbose > 2) ? "00000000 [none]" : "[none]");
+ printf("\n");
+
+ if (cap_ver < PCI_RCEC_BUSN_REG_VER)
+ return;
+
+ u32 busn = get_conf_long(d, where + PCI_RCEC_BUSN_REG);
+ u8 lastbusn = BITS(busn, 16, 8);
+ u8 nextbusn = BITS(busn, 8, 8);
+
+ if ((lastbusn == 0x00) && (nextbusn == 0xff))
+ printf("\t\tAssociatedBusNumbers: %s\n", (verbose > 2) ? "ff-00 [none]" : "[none]");
+ else
+ printf("\t\tAssociatedBusNumbers: %02x-%02x\n", nextbusn, lastbusn );
+}
+
+static void
+cap_dvsec_cxl(struct device *d, int where)
{
u16 l;
- printf("CXL Designated Vendor-Specific:\n");
+ printf(": CXL\n");
if (verbose < 2)
return;
printf("\t\tCXLSta:\tViral%c\n", FLAG(l, PCI_CXL_STATUS_VIRAL));
}
-static int
-is_cxl_cap(struct device *d, int where)
-{
- u32 hdr;
- u16 w;
-
- if (!config_fetch(d, where + PCI_DVSEC_HEADER1, 8))
- return 0;
-
- /* Check for supported Vendor */
- hdr = get_conf_long(d, where + PCI_DVSEC_HEADER1);
- w = BITS(hdr, 0, 16);
- if (w != PCI_VENDOR_ID_INTEL)
- return 0;
-
- /* Check for Designated Vendor-Specific ID */
- hdr = get_conf_long(d, where + PCI_DVSEC_HEADER2);
- w = BITS(hdr, 0, 16);
- if (w == PCI_DVSEC_INTEL_CXL)
- return 1;
-
- return 0;
-}
-
static void
cap_dvsec(struct device *d, int where)
{
- u32 hdr;
-
- printf("Designated Vendor-Specific:\n");
+ printf("Designated Vendor-Specific: ");
if (!config_fetch(d, where + PCI_DVSEC_HEADER1, 8))
{
printf("<unreadable>\n");
return;
}
- hdr = get_conf_long(d, where + PCI_DVSEC_HEADER1);
- printf("\t\tDVSEC Vendor ID=%04x Rev=%d Len=%03x <?>\n",
- BITS(hdr, 0, 16),
- BITS(hdr, 16, 4),
- BITS(hdr, 20, 12));
+ u32 hdr = get_conf_long(d, where + PCI_DVSEC_HEADER1);
+ u16 vendor = BITS(hdr, 0, 16);
+ byte rev = BITS(hdr, 16, 4);
+ u16 len = BITS(hdr, 20, 12);
- hdr = get_conf_long(d, where + PCI_DVSEC_HEADER2);
- printf("\t\tDVSEC ID=%04x <?>\n",
- BITS(hdr, 0, 16));
+ u16 id = get_conf_long(d, where + PCI_DVSEC_HEADER2);
+
+ printf("Vendor=%04x ID=%04x Rev=%d Len=%d", vendor, id, rev, len);
+ if (vendor == PCI_DVSEC_VENDOR_ID_CXL && id == PCI_DVSEC_ID_CXL && len >= 16)
+ cap_dvsec_cxl(d, where);
+ else
+ printf(" <?>\n");
}
static void
}
}
+static void
+print_rebar_range_size(int ld2_size)
+{
+ // This function prints the input as a power-of-2 size value
+ // It is biased with 1MB = 0, ...
+ // Maximum resizable BAR value supported is 2^63 bytes = 43
+ // for the extended resizable BAR capability definition
+ // (otherwise it would stop at 2^28)
+
+ if (ld2_size >= 0 && ld2_size < 10)
+ printf(" %dMB", (1 << ld2_size));
+ else if (ld2_size >= 10 && ld2_size < 20)
+ printf(" %dGB", (1 << (ld2_size-10)));
+ else if (ld2_size >= 20 && ld2_size < 30)
+ printf(" %dTB", (1 << (ld2_size-20)));
+ else if (ld2_size >= 30 && ld2_size < 40)
+ printf(" %dPB", (1 << (ld2_size-30)));
+ else if (ld2_size >= 40 && ld2_size < 44)
+ printf(" %dEB", (1 << (ld2_size-40)));
+ else
+ printf(" <unknown>");
+}
+
+static void
+cap_rebar(struct device *d, int where, int virtual)
+{
+ u32 sizes_buffer, control_buffer, ext_sizes, current_size;
+ u16 bar_index, barcount, i;
+ // If the structure exists, at least one bar is defined
+ u16 num_bars = 1;
+
+ printf("%s Resizable BAR\n", (virtual) ? "Virtual" : "Physical");
+
+ if (verbose < 2)
+ return;
+
+ // Go through all defined BAR definitions of the caps, at minimum 1
+ // (loop also terminates if num_bars read from caps is > 6)
+ for (barcount = 0; barcount < num_bars; barcount++)
+ {
+ where += 4;
+
+ // Get the next BAR configuration
+ if (!config_fetch(d, where, 8))
+ {
+ printf("\t\t<unreadable>\n");
+ return;
+ }
+
+ sizes_buffer = get_conf_long(d, where) >> 4;
+ where += 4;
+ control_buffer = get_conf_long(d, where);
+
+ bar_index = BITS(control_buffer, 0, 3);
+ current_size = BITS(control_buffer, 8, 6);
+ ext_sizes = BITS(control_buffer, 16, 16);
+
+ if (barcount == 0)
+ {
+ // Only index 0 controlreg has the num_bar count definition
+ num_bars = BITS(control_buffer, 5, 3);
+ if (num_bars < 1 || num_bars > 6)
+ {
+ printf("\t\t<error in resizable BAR: num_bars=%d is out of specification>\n", num_bars);
+ break;
+ }
+ }
+
+ // Resizable BAR list entry have an arbitrary index and current size
+ printf("\t\tBAR %d: current size:", bar_index);
+ print_rebar_range_size(current_size);
+
+ if (sizes_buffer || ext_sizes)
+ {
+ printf(", supported:");
+
+ for (i=0; i<28; i++)
+ if (sizes_buffer & (1U << i))
+ print_rebar_range_size(i);
+
+ for (i=0; i<16; i++)
+ if (ext_sizes & (1U << i))
+ print_rebar_range_size(i + 28);
+ }
+
+ printf("\n");
+ }
+}
+
void
show_ext_caps(struct device *d, int type)
{
case PCI_EXT_CAP_ID_RCILINK:
printf("Root Complex Internal Link <?>\n");
break;
- case PCI_EXT_CAP_ID_RCECOLL:
- printf("Root Complex Event Collector <?>\n");
+ case PCI_EXT_CAP_ID_RCEC:
+ cap_rcec(d, where);
break;
case PCI_EXT_CAP_ID_MFVC:
printf("Multi-Function Virtual Channel <?>\n");
cap_pri(d, where);
break;
case PCI_EXT_CAP_ID_REBAR:
- printf("Resizable BAR <?>\n");
+ cap_rebar(d, where, 0);
break;
case PCI_EXT_CAP_ID_DPA:
printf("Dynamic Power Allocation <?>\n");
printf("Readiness Time Reporting <?>\n");
break;
case PCI_EXT_CAP_ID_DVSEC:
- if (is_cxl_cap(d, where))
- cap_cxl(d, where);
- else
- cap_dvsec(d, where);
+ cap_dvsec(d, where);
break;
case PCI_EXT_CAP_ID_VF_REBAR:
- printf("VF Resizable BAR <?>\n");
+ cap_rebar(d, where, 1);
break;
case PCI_EXT_CAP_ID_DLNK:
printf("Data Link Feature <?>\n");
projects / pciutils.git / blobdiff