int caam_qi_shutdown(struct device *qidev)
{
struct caam_qi_priv *priv = dev_get_drvdata(qidev);
int i, ret;
const cpumask_t *cpus = qman_affine_cpus();
struct cpumask old_cpumask = *tsk_cpus_allowed(current);
for_each_cpu(i, cpus) {
struct napi_struct *irqtask;
irqtask = &per_cpu_ptr(&pcpu_qipriv.caam_napi, i)->irqtask;
napi_disable(irqtask);
netif_napi_del(irqtask);
if (kill_fq(qidev, &per_cpu(pcpu_qipriv.rsp_fq, i)))
dev_err(qidev, "Rsp FQ kill failed, cpu: %d\n", i);
}
/*
* QMAN driver requires CGRs to be deleted from same CPU from where
* they were instantiated. Hence we get the module removal execute
* from the same CPU from where it was originally inserted.
*/
set_cpus_allowed_ptr(current, get_cpu_mask(mod_init_cpu));
ret = qman_delete_cgr(&priv->rsp_cgr);
if (ret)
dev_err(qidev, "Delete response CGR failed: %d\n", ret);
else
qman_release_cgrid(priv->rsp_cgr.cgrid);
if (qi_cache)
kmem_cache_destroy(qi_cache);
/* Now that we're done with the CGRs, restore the cpus allowed mask */
set_cpus_allowed_ptr(current, &old_cpumask);
platform_device_unregister(priv->qi_pdev);
return ret;
}
void caam_qi_shutdown(struct device *qidev)
{
int i;
struct caam_qi_priv *priv = dev_get_drvdata(qidev);
const cpumask_t *cpus = qman_affine_cpus();
for_each_cpu(i, cpus) {
struct napi_struct *irqtask;
irqtask = &per_cpu_ptr(&pcpu_qipriv.caam_napi, i)->irqtask;
napi_disable(irqtask);
netif_napi_del(irqtask);
if (kill_fq(qidev, per_cpu(pcpu_qipriv.rsp_fq, i)))
dev_err(qidev, "Rsp FQ kill failed, cpu: %d\n", i);
}
qman_delete_cgr_safe(&priv->cgr);
qman_release_cgrid(priv->cgr.cgrid);
kmem_cache_destroy(qi_cache);
platform_device_unregister(priv->qi_pdev);
}
