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env_dpdk: delete all unnecessary files created by dpdk 18.05

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DPDK 18.05 introduces a new "runtime" directory,
which contains hugepage metadata to be accessed
by secondary processes. There may be multiple
files per each memseg and we cannot easily predict
their count, so this patch deletes all regular
files in that directory.

$ ls -l /var/run/dpdk/spdk_pidX
total 16784
-rw------- 1 root root     4096 Jul 27 15:10 fbarray_memseg-1048576k-1-0
-rw------- 1 root root   188416 Jul 27 15:10 fbarray_memzone
-rw-r--r-- 1 root root 16974144 Jul 27 15:10 hugepage_data
-rw-r--r-- 1 root root    12432 Jul 27 15:10 hugepage_info
srwxr-xr-x 1 root root        0 Jul 27 15:10 mp_socket

The DPDK config file is not located in this directory
yet to preserve some of the backward compability.
Eventually, it will moved there as well.

Change-Id: I61cf1a47b306b51b0817c9d870841508f1e5e604
Signed-off-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-on: https://review.gerrithub.io/420659
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Dariusz Stojaczyk 2018-07-27 15:14:57 +02:00 committed by Ben Walker
parent 6d4e910f32
commit b86c6b1704
1 changed files with 28 additions and 0 deletions
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28
lib/env_dpdk/init.c
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@ -100,6 +100,10 @@ _sprintf_alloc(const char *format, ...)
return NULL; return NULL;
} }
#if RTE_VERSION >= RTE_VERSION_NUM(18, 05, 0, 0)
const char *eal_get_runtime_dir(void);
#endif
static void static void
spdk_env_unlink_shared_files(void) spdk_env_unlink_shared_files(void)
{ {
@ -110,10 +114,34 @@ spdk_env_unlink_shared_files(void)
fprintf(stderr, "Unable to unlink shared memory file: %s. Error code: %d\n", buffer, errno); fprintf(stderr, "Unable to unlink shared memory file: %s. Error code: %d\n", buffer, errno);
} }
#if RTE_VERSION < RTE_VERSION_NUM(18, 05, 0, 0)
snprintf(buffer, PATH_MAX, "/var/run/.spdk_pid%d_hugepage_info", getpid()); snprintf(buffer, PATH_MAX, "/var/run/.spdk_pid%d_hugepage_info", getpid());
if (unlink(buffer)) { if (unlink(buffer)) {
fprintf(stderr, "Unable to unlink shared memory file: %s. Error code: %d\n", buffer, errno); fprintf(stderr, "Unable to unlink shared memory file: %s. Error code: %d\n", buffer, errno);
} }
#else
DIR *dir;
struct dirent *d;
dir = opendir(eal_get_runtime_dir());
if (!dir) {
fprintf(stderr, "Failed to open DPDK runtime dir: %s (%d)\n", eal_get_runtime_dir(), errno);
return;
}
while ((d = readdir(dir)) != NULL) {
if (d->d_type != DT_REG) {
continue;
}
snprintf(buffer, PATH_MAX, "%s/%s", eal_get_runtime_dir(), d->d_name);
if (unlink(buffer)) {
fprintf(stderr, "Unable to unlink shared memory file: %s. Error code: %d\n", buffer, errno);
}
}
closedir(dir);
#endif
} }
void void