lspci: Show Slot Power Limit values above EFh

[pciutils.git] / ls-ecaps.c

diff --git a/ls-ecaps.c b/ls-ecaps.c
index 22de109a66223a97de2a42e3404ce6a41e483621..99c55ff7092c8041795547cda262d576ba762084 100644 (file)
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -634,6 +634,61 @@ cap_rclink(struct device *d, int where)
     }
 }
 
+static void
+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)
 {
@@ -848,6 +903,95 @@ cap_ptm(struct device *d, int where)
     }
 }
 
+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)
 {
@@ -902,8 +1046,8 @@ 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");
@@ -936,7 +1080,7 @@ show_ext_caps(struct device *d, int type)
            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");
@@ -978,7 +1122,7 @@ show_ext_caps(struct device *d, int type)
            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");