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Commit b9878f48 authored by Sven Auhagen's avatar Sven Auhagen Committed by Greg Kroah-Hartman
Browse files

crypto: inside-secure - irq balance 



[ Upstream commit c6720415907f21b9c53efbe679b96c3cc9d06404 ]

Balance the irqs of the inside secure driver over all
available cpus.
Currently all interrupts are handled by the first CPU.

From my testing with IPSec AES-GCM 256
on my MCbin with 4 Cores I get a 50% speed increase:

Before the patch: 99.73 Kpps
With the patch: 151.25 Kpps

Signed-off-by: default avatarSven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
Stable-dep-of: ca25c00ccbc5 ("crypto: safexcel - Cleanup ring IRQ workqueues on load failure")
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 439d3a70

drivers/crypto/inside-secure/safexcel.c

+11 −2
Original line number Diff line number Diff line
@@ -1090,11 +1090,12 @@ static irqreturn_t safexcel_irq_ring_thread(int irq, void *data) 


static int safexcel_request_ring_irq(void *pdev, int irqid,

				     int is_pci_dev,

				     int ring_id,

				     irq_handler_t handler,

				     irq_handler_t threaded_handler,

				     struct safexcel_ring_irq_data *ring_irq_priv)

{

	int ret, irq;

	int ret, irq, cpu;

	struct device *dev;



	if (IS_ENABLED(CONFIG_PCI) && is_pci_dev) {
@@ -1132,6 +1133,10 @@ static int safexcel_request_ring_irq(void *pdev, int irqid, 
		return ret;

	}



	/* Set affinity */

	cpu = cpumask_local_spread(ring_id, NUMA_NO_NODE);

	irq_set_affinity_hint(irq, get_cpu_mask(cpu));



	return irq;

}
@@ -1482,6 +1487,7 @@ static int safexcel_probe_generic(void *pdev, 
		irq = safexcel_request_ring_irq(pdev,

						EIP197_IRQ_NUMBER(i, is_pci_dev),

						is_pci_dev,

						i,

						safexcel_irq_ring,

						safexcel_irq_ring_thread,

						ring_irq);
@@ -1490,6 +1496,7 @@ static int safexcel_probe_generic(void *pdev, 
			return irq;

		}



		priv->ring[i].irq = irq;

		priv->ring[i].work_data.priv = priv;

		priv->ring[i].work_data.ring = i;

		INIT_WORK(&priv->ring[i].work_data.work,
@@ -1627,8 +1634,10 @@ static int safexcel_remove(struct platform_device *pdev) 


	clk_disable_unprepare(priv->clk);



	for (i = 0; i < priv->config.rings; i++)

	for (i = 0; i < priv->config.rings; i++) {

		irq_set_affinity_hint(priv->ring[i].irq, NULL);

		destroy_workqueue(priv->ring[i].workqueue);

	}



	return 0;

}

drivers/crypto/inside-secure/safexcel.h

+3 −0
Original line number Diff line number Diff line
@@ -640,6 +640,9 @@ struct safexcel_ring { 
	 */

	struct crypto_async_request *req;

	struct crypto_async_request *backlog;



	/* irq of this ring */

	int irq;

};



/* EIP integration context flags */