From: Srikanth Kaka <srikanth.k@oneconvergence.com>
To: Matan Azrad <matan@nvidia.com>,
Viacheslav Ovsiienko <viacheslavo@nvidia.com>
Cc: dev@dpdk.org, Vag Singh <vag.singh@oneconvergence.com>,
Anand Thulasiram <avelu@juniper.net>,
Srikanth Kaka <srikanth.k@oneconvergence.com>
Subject: [dpdk-dev] [PATCH 08/19] common/mlx5: derive PCI addr in FreeBSD
Date: Mon, 27 Sep 2021 19:04:39 +0530 [thread overview]
Message-ID: <20210927133450.10653-9-srikanth.k@oneconvergence.com> (raw)
In-Reply-To: <20210927133450.10653-1-srikanth.k@oneconvergence.com>
The FreeBSD OFED gives the Linux path as the IBV device path.
The PCI addr is derived by getting the IBV dev interface index and
finding the corresponding sysctl variable pertaining to it.
Signed-off-by: Srikanth Kaka <srikanth.k@oneconvergence.com>
Signed-off-by: Vag Singh <vag.singh@oneconvergence.com>
Signed-off-by: Anand Thulasiram <avelu@juniper.net>
---
drivers/common/mlx5/freebsd/mlx5_common_os.c | 79 ++++++++++----------
drivers/common/mlx5/freebsd/mlx5_common_os.h | 2 +
2 files changed, 41 insertions(+), 40 deletions(-)
diff --git a/drivers/common/mlx5/freebsd/mlx5_common_os.c b/drivers/common/mlx5/freebsd/mlx5_common_os.c
index 9e0c823c97..af28ff756d 100644
--- a/drivers/common/mlx5/freebsd/mlx5_common_os.c
+++ b/drivers/common/mlx5/freebsd/mlx5_common_os.c
@@ -10,6 +10,7 @@
#endif
#include <dirent.h>
#include <net/if.h>
+#include <sys/sysctl.h>
#include <rte_errno.h>
#include <rte_string_fns.h>
@@ -26,48 +27,46 @@ const struct mlx5_glue *mlx5_glue;
int
mlx5_get_pci_addr(const char *dev_path, struct rte_pci_addr *pci_addr)
{
- FILE *file;
- char line[32];
- int rc = -ENOENT;
- MKSTR(path, "%s/device/uevent", dev_path);
-
- file = fopen(path, "rb");
- if (file == NULL) {
- rte_errno = errno;
- return -rte_errno;
- }
- while (fgets(line, sizeof(line), file) == line) {
- size_t len = strlen(line);
-
- /* Truncate long lines. */
- if (len == (sizeof(line) - 1)) {
- while (line[(len - 1)] != '\n') {
- int ret = fgetc(file);
-
- if (ret == EOF)
- goto exit;
- line[(len - 1)] = ret;
- }
- /* No match for long lines. */
- continue;
- }
- /* Extract information. */
- if (sscanf(line,
- "PCI_SLOT_NAME="
- "%" SCNx32 ":%" SCNx8 ":%" SCNx8 ".%" SCNx8 "\n",
- &pci_addr->domain,
- &pci_addr->bus,
- &pci_addr->devid,
- &pci_addr->function) == 4) {
- rc = 0;
+ char id[10];
+ char searchstr[MLX5_SYSCTL_BY_NAME_SIZE];
+ size_t length = MLX5_SYSCTL_BY_NAME_SIZE;
+ char name[MLX5_SYSCTL_BY_NAME_SIZE];
+ int traverse = 0;
+
+ strncpy(id, &dev_path[strlen("/sys/class/infiniband/mlx5_")],
+ strlen(dev_path) - strlen("/sys/class/infiniband/mlx5_"));
+ sprintf(searchstr, "dev.mlx5_core.%s.%slocation", id, "%");
+ sysctlbyname(searchstr, &name, &length, NULL, 0);
+
+ while (name[traverse]) {
+ if (name[traverse] == 'p' && name[traverse + 1] == 'c' &&
+ name[traverse + 2] == 'i')
break;
- }
+ ++traverse;
}
-exit:
- fclose(file);
- if (rc)
- rte_errno = -rc;
- return rc;
+ traverse += 3;
+
+ int end = traverse;
+
+ while (name[end] != ' ')
+ ++end;
+
+ char address[end - traverse + 1];
+
+ memcpy(address, &name[traverse], end - traverse);
+ address[end - traverse] = '\0';
+
+ char *ptr = strtok(address, " :");
+
+ pci_addr->domain = (uint32_t)atoi(ptr);
+ ptr = strtok(NULL, " :");
+ pci_addr->bus = (uint8_t)atoi(ptr);
+ ptr = strtok(NULL, " :");
+ pci_addr->devid = (uint8_t)atoi(ptr);
+ ptr = strtok(NULL, " :");
+ pci_addr->function = (uint8_t)atoi(ptr);
+
+ return 0;
}
/**
diff --git a/drivers/common/mlx5/freebsd/mlx5_common_os.h b/drivers/common/mlx5/freebsd/mlx5_common_os.h
index c3202b6786..8fb681444f 100644
--- a/drivers/common/mlx5/freebsd/mlx5_common_os.h
+++ b/drivers/common/mlx5/freebsd/mlx5_common_os.h
@@ -19,6 +19,8 @@
#include "mlx5_glue.h"
#include "mlx5_malloc.h"
+#define MLX5_SYSCTL_BY_NAME_SIZE 100
+
/**
* Get device name. Given an ibv_device pointer - return a
* pointer to the corresponding device name.
--
2.30.2
next prev parent reply other threads:[~2021-09-27 14:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-27 13:34 [dpdk-dev] [PATCH 00/19] MLX5 FreeBSD support Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 01/19] common/mlx5: stub for FreeBSD Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 02/19] net/mlx5: " Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 03/19] common/mlx5: disabling auxiliary bus support Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 04/19] net/mlx5: " Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 05/19] net/mlx5: modified PCI probe to work on FreeBSD Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 06/19] common/mlx5: define PF_INET socket Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 07/19] net/mlx5: use the newly defined INET socket Srikanth Kaka
2021-09-27 13:34 ` Srikanth Kaka [this message]
2021-09-27 13:34 ` [dpdk-dev] [PATCH 09/19] common/mlx5: get interface name Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 10/19] net/mlx5: fix socket MAC request Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 11/19] net/mlx5: removing port representator support Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 12/19] net/mlx5: Added procedure to detect link state Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 13/19] net/mlx5: added placeholder for VLAN vmwa Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 14/19] net/mlx5: added stats support Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 15/19] net/mlx5: making flow control DPDK callback invalid Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 16/19] net/mlx5: making module DPDK callbacks invalid Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 17/19] common/mlx5: fixed missing dependency in mlx5_glue.h Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 18/19] net/mlx5: fixed compilation warnings Srikanth Kaka
2021-09-27 13:34 ` [dpdk-dev] [PATCH 19/19] mlx5: Added meson support for FreeBSD Srikanth Kaka
2021-09-29 12:20 ` [dpdk-dev] [PATCH 00/19] MLX5 FreeBSD support Thomas Monjalon
2021-09-29 15:56 ` Srikanth K
2021-09-29 16:20 ` Thomas Monjalon
2021-09-30 16:27 ` Srikanth K
2021-09-30 16:55 ` Thomas Monjalon
2021-10-01 11:35 ` Srikanth K
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