Commit 40fb59e7 authored by Marc Carino's avatar Marc Carino Committed by Tejun Heo
Browse files

libata: Add H2D FIS "auxiliary" port flag 



Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate
support for transmission of the H2D FIS 'auxiliary' field.

Signed-off-by: default avatarMarc Carino <marc.ceeeee@gmail.com>
Signed-off-by: default avatarTejun Heo <tj@kernel.org>
parent 8be5ad9a

drivers/ata/ahci.c

+8 −0
Original line number Diff line number Diff line
@@ -1288,6 +1288,14 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) 
		 */

		if (!(hpriv->flags & AHCI_HFLAG_NO_FPDMA_AA))

			pi.flags |= ATA_FLAG_FPDMA_AA;



		/*

		 * All AHCI controllers should be forward-compatible

		 * with the new auxiliary field. This code should be

		 * conditionalized if any buggy AHCI controllers are

		 * encountered.

		 */

		pi.flags |= ATA_FLAG_FPDMA_AUX;

	}



	if (hpriv->cap & HOST_CAP_PMP)

include/linux/libata.h

+1 −0
Original line number Diff line number Diff line
@@ -223,6 +223,7 @@ enum { 
	ATA_FLAG_ACPI_SATA	= (1 << 17), /* need native SATA ACPI layout */

	ATA_FLAG_AN		= (1 << 18), /* controller supports AN */

	ATA_FLAG_PMP		= (1 << 19), /* controller supports PMP */

	ATA_FLAG_FPDMA_AUX	= (1 << 20), /* controller supports H2DFIS aux field */

	ATA_FLAG_EM		= (1 << 21), /* driver supports enclosure

					      * management */

	ATA_FLAG_SW_ACTIVITY	= (1 << 22), /* driver supports sw activity