vlib: revert automatic core pinning changes

This reverts commit 71c32a898941e32b5d4f865b50fbe775560c582d.

Type: fix

Reason for revert: vnet pinning is not considered in this patch.
This causes keywords 'workers' and 'skip-cores' to be broken,
as well as keyword 'main-core auto' introduced in this patch.
If this patch is ever reconsidered, it must account for vnet
pinning fix in commit https://gerrit.fd.io/r/c/vpp/+/40711.

Change-Id: I1f3154a6c7e830b100f824375aa00e95b192f7f3
Signed-off-by: hsandid <halsandi@cisco.com>

2 files changed, 0 insertions, 34 deletions

diff --git a/src/vppinfra/unix-misc.c b/src/vppinfra/unix-misc.c
index a72e55dd043..5008f82c493 100644
--- a/src/vppinfra/unix-misc.c
+++ b/src/vppinfra/unix-misc.c
@@ -49,7 +49,6 @@
 
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <sys/syscall.h>
 #include <sys/uio.h>		/* writev */
 #include <fcntl.h>
 #include <stdio.h>		/* for sprintf */
@@ -279,36 +278,6 @@ os_get_online_cpu_core_bitmap ()
 }
 
 __clib_export clib_bitmap_t *
-os_get_cpu_affinity_bitmap (int pid)
-{
-#if __linux
-  int index, ret;
-  cpu_set_t cpuset;
-  uword *affinity_cpus;
-
-  clib_bitmap_alloc (affinity_cpus, sizeof (cpu_set_t));
-  clib_bitmap_zero (affinity_cpus);
-
-  __CPU_ZERO_S (sizeof (cpu_set_t), &cpuset);
-
-  ret = syscall (SYS_sched_getaffinity, 0, sizeof (cpu_set_t), &cpuset);
-
-  if (ret < 0)
-    {
-      clib_bitmap_free (affinity_cpus);
-      return 0;
-    }
-
-  for (index = 0; index < sizeof (cpu_set_t); index++)
-    if (__CPU_ISSET_S (index, sizeof (cpu_set_t), &cpuset))
-      clib_bitmap_set (affinity_cpus, index, 1);
-  return affinity_cpus;
-#else
-  return 0;
-#endif
-}
-
-__clib_export clib_bitmap_t *
 os_get_online_cpu_node_bitmap ()
 {
 #if __linux__
diff --git a/src/vppinfra/unix.h b/src/vppinfra/unix.h
index abda21879f9..d0ddb93a46f 100644
--- a/src/vppinfra/unix.h
+++ b/src/vppinfra/unix.h
@@ -56,9 +56,6 @@ clib_error_t *unix_proc_file_contents (char *file, u8 ** result);
 /* Retrieve bitmap of online cpu cures */
 clib_bitmap_t *os_get_online_cpu_core_bitmap ();
 
-/* Retrieve bitmap of cpus vpp has affinity to */
-clib_bitmap_t *os_get_cpu_affinity_bitmap (int pid);
-
 /* Retrieve bitmap of online cpu nodes (sockets) */
 clib_bitmap_t *os_get_online_cpu_node_bitmap ();