linux-kernel - [PATCH 1/1] ahci: Add support for Amazon's Annapurna Labs SATA controller

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Message-ID: <20191017144653.3429-1-hhhawa@amazon.com>
Date:   Thu, 17 Oct 2019 15:46:53 +0100
From:   Hanna Hawa <hhhawa@...zon.com>
To:     <axboe@...nel.dk>
CC:     <linux-ide@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <dwmw@...zon.co.uk>, <benh@...zon.com>, <ronenk@...zon.com>,
        <talel@...zon.com>, <jonnyc@...zon.com>, <hanochu@...zon.com>,
        <hhhawa@...zon.com>
Subject: [PATCH 1/1] ahci: Add support for Amazon's Annapurna Labs SATA controller

This patch adds basic support for Amazon's Annapurna Labs SATA
controller.

Signed-off-by: Hanna Hawa <hhhawa@...zon.com>
---
 drivers/ata/ahci.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index dd92faf197d5..8ac7e806aa97 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -56,6 +56,7 @@ enum board_ids {
 	board_ahci_yes_fbs,
 
 	/* board IDs for specific chipsets in alphabetical order */
+	board_ahci_al,
 	board_ahci_avn,
 	board_ahci_mcp65,
 	board_ahci_mcp77,
@@ -167,6 +168,13 @@ static const struct ata_port_info ahci_port_info[] = {
 		.port_ops	= &ahci_ops,
 	},
 	/* by chipsets */
+	[board_ahci_al] = {
+		AHCI_HFLAGS	(AHCI_HFLAG_NO_PMP | AHCI_HFLAG_NO_MSI),
+		.flags		= AHCI_FLAG_COMMON,
+		.pio_mask	= ATA_PIO4,
+		.udma_mask	= ATA_UDMA6,
+		.port_ops	= &ahci_ops,
+	},
 	[board_ahci_avn] = {
 		.flags		= AHCI_FLAG_COMMON,
 		.pio_mask	= ATA_PIO4,
@@ -415,6 +423,11 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(ATI, 0x4394), board_ahci_sb700 }, /* ATI SB700/800 */
 	{ PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
 
+	/* Amazon's Annapurna Labs support */
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMAZON_ANNAPURNA_LABS, 0x0031),
+		.class = PCI_CLASS_STORAGE_SATA_AHCI,
+		.class_mask = 0xffffff,
+		board_ahci_al },
 	/* AMD */
 	{ PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
 	{ PCI_VDEVICE(AMD, 0x7900), board_ahci }, /* AMD CZ */
-- 
2.17.1