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idxd: Do not allow calls to spdk_idxd_set_config after devices have been

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probed

This can cause a mismatch of kernel vs user driver and isn't allowed.

Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Change-Id: I9c572ea1fa1da89d7b41e31ab4719eec719fb50a
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/10588
Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com>
Reviewed-by: Shuhei Matsumoto <smatsumoto@nvidia.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: John Kariuki <John.K.Kariuki@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
This commit is contained in:
Ben Walker 2021-12-06 14:30:08 -07:00 committed by Tomasz Zawadzki
parent 85580d47e1
commit 7f75e1081a
1 changed files with 6 additions and 0 deletions
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6
lib/idxd/idxd.c
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@ -265,6 +265,12 @@ idxd_get_impl_by_name(const char *impl_name)
void
spdk_idxd_set_config(bool kernel_mode)
{
if (g_idxd_impl != NULL) {
SPDK_ERRLOG("Cannot change idxd implementation after devices are initialized\n");
assert(false);
return;
}
if (kernel_mode) {
g_idxd_impl = idxd_get_impl_by_name(KERNEL_DRIVER_NAME);
} else {