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-rw-r--r--src/vlib/pci/pci.c264
1 files changed, 264 insertions, 0 deletions
diff --git a/src/vlib/pci/pci.c b/src/vlib/pci/pci.c
new file mode 100644
index 00000000000..7100064df42
--- /dev/null
+++ b/src/vlib/pci/pci.c
@@ -0,0 +1,264 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * pci.c: Linux user space PCI bus management.
+ *
+ * Copyright (c) 2008 Eliot Dresselhaus
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <vlib/vlib.h>
+#include <vlib/pci/pci.h>
+#include <vlib/unix/unix.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <dirent.h>
+#include <sys/ioctl.h>
+#include <net/if.h>
+#include <linux/ethtool.h>
+#include <linux/sockios.h>
+
+vlib_pci_main_t pci_main;
+
+vlib_pci_device_t *
+vlib_get_pci_device (vlib_pci_addr_t * addr)
+{
+ vlib_pci_main_t *pm = &pci_main;
+ uword *p;
+ p = hash_get (pm->pci_dev_index_by_pci_addr, addr->as_u32);
+
+ if (p == 0)
+ return 0;
+
+ return vec_elt_at_index (pm->pci_devs, p[0]);
+}
+
+static clib_error_t *
+show_pci_fn (vlib_main_t * vm,
+ unformat_input_t * input, vlib_cli_command_t * cmd)
+{
+ vlib_pci_main_t *pm = &pci_main;
+ vlib_pci_device_t *d;
+ int show_all = 0;
+ u8 *s = 0;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "all"))
+ show_all = 1;
+ else
+ return clib_error_return (0, "unknown input `%U'",
+ format_unformat_error, input);
+ }
+
+ vlib_cli_output (vm, "%-13s%-5s%-12s%-13s%-16s%-32s%s",
+ "Address", "Sock", "VID:PID", "Link Speed", "Driver",
+ "Product Name", "Vital Product Data");
+
+ /* *INDENT-OFF* */
+ pool_foreach (d, pm->pci_devs, ({
+
+ if (d->device_class != PCI_CLASS_NETWORK_ETHERNET && !show_all)
+ continue;
+
+ vec_reset_length (s);
+
+ if (d->numa_node >= 0)
+ s = format (s, " %d", d->numa_node);
+
+ vlib_cli_output (vm, "%-13U%-5v%04x:%04x %-13U%-16s%-32v%U",
+ format_vlib_pci_addr, &d->bus_address, s,
+ d->vendor_id, d->device_id,
+ format_vlib_pci_link_speed, d,
+ d->driver_name ? (char *) d->driver_name : "",
+ d->product_name,
+ format_vlib_pci_vpd, d->vpd_r, 0);
+ }));
+/* *INDENT-ON* */
+
+ vec_free (s);
+ return 0;
+}
+
+uword
+unformat_vlib_pci_addr (unformat_input_t * input, va_list * args)
+{
+ vlib_pci_addr_t *addr = va_arg (*args, vlib_pci_addr_t *);
+ u32 x[4];
+
+ if (!unformat (input, "%x:%x:%x.%x", &x[0], &x[1], &x[2], &x[3]))
+ return 0;
+
+ addr->domain = x[0];
+ addr->bus = x[1];
+ addr->slot = x[2];
+ addr->function = x[3];
+
+ return 1;
+}
+
+u8 *
+format_vlib_pci_addr (u8 * s, va_list * va)
+{
+ vlib_pci_addr_t *addr = va_arg (*va, vlib_pci_addr_t *);
+ return format (s, "%04x:%02x:%02x.%x", addr->domain, addr->bus,
+ addr->slot, addr->function);
+}
+
+u8 *
+format_vlib_pci_handle (u8 * s, va_list * va)
+{
+ vlib_pci_addr_t *addr = va_arg (*va, vlib_pci_addr_t *);
+ return format (s, "%x/%x/%x", addr->bus, addr->slot, addr->function);
+}
+
+u8 *
+format_vlib_pci_link_speed (u8 * s, va_list * va)
+{
+ vlib_pci_device_t *d = va_arg (*va, vlib_pci_device_t *);
+ pcie_config_regs_t *r =
+ pci_config_find_capability (&d->config0, PCI_CAP_ID_PCIE);
+ int width;
+
+ if (!r)
+ return format (s, "unknown");
+
+ width = (r->link_status >> 4) & 0x3f;
+
+ if ((r->link_status & 0xf) == 1)
+ return format (s, "2.5 GT/s x%u", width);
+ if ((r->link_status & 0xf) == 2)
+ return format (s, "5.0 GT/s x%u", width);
+ if ((r->link_status & 0xf) == 3)
+ return format (s, "8.0 GT/s x%u", width);
+ return format (s, "unknown");
+}
+
+u8 *
+format_vlib_pci_vpd (u8 * s, va_list * args)
+{
+ u8 *data = va_arg (*args, u8 *);
+ u8 *id = va_arg (*args, u8 *);
+ uword indent = format_get_indent (s);
+ char *string_types[] = { "PN", "EC", "SN", "MN", 0 };
+ uword p = 0;
+ int first_line = 1;
+
+ if (vec_len (data) < 3)
+ return s;
+
+ while (p + 3 < vec_len (data))
+ {
+
+ if (data[p] == 0 && data[p + 1] == 0)
+ return s;
+
+ if (p + data[p + 2] > vec_len (data))
+ return s;
+
+ if (id == 0)
+ {
+ int is_string = 0;
+ char **c = string_types;
+
+ while (c[0])
+ {
+ if (*(u16 *) & data[p] == *(u16 *) c[0])
+ is_string = 1;
+ c++;
+ }
+
+ if (data[p + 2])
+ {
+ if (!first_line)
+ s = format (s, "\n%U", format_white_space, indent);
+ else
+ {
+ first_line = 0;
+ s = format (s, " ");
+ }
+
+ s = format (s, "%c%c: ", data[p], data[p + 1]);
+ if (is_string)
+ vec_add (s, data + p + 3, data[p + 2]);
+ else
+ {
+ int i;
+ const int max_bytes = 8;
+ s = format (s, "0x");
+ for (i = 0; i < clib_min (data[p + 2], max_bytes); i++)
+ s = format (s, " %02x", data[p + 3 + i]);
+
+ if (data[p + 2] > max_bytes)
+ s = format (s, " ...");
+ }
+ }
+ }
+ else if (*(u16 *) & data[p] == *(u16 *) id)
+ {
+ vec_add (s, data + p + 3, data[p + 2]);
+ return s;
+ }
+
+ p += 3 + data[p + 2];
+ }
+
+ return s;
+}
+
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_pci_command, static) = {
+ .path = "show pci",
+ .short_help = "show pci [all]",
+ .function = show_pci_fn,
+};
+/* *INDENT-ON* */
+
+clib_error_t *
+pci_bus_init (vlib_main_t * vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (pci_bus_init);
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */