From 68125bc44173893fb3af08085b0b6b823b60d030 Mon Sep 17 00:00:00 2001 From: Michael Brown Date: Wed, 31 May 2006 14:34:17 +0000 Subject: Added generic asynchronous operations code. Removed data_in_len and data_out_len from ata_command structure; the lengths are implied by the sector count and the presence of the data_in or data_out pointers. Changed AoE code to use subcommands by default, and made aoe_issue() nonblocking (with completion via async_wait()). --- src/include/gpxe/aoe.h | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'src/include/gpxe/aoe.h') diff --git a/src/include/gpxe/aoe.h b/src/include/gpxe/aoe.h index 2e13d7a8d..fb692224b 100644 --- a/src/include/gpxe/aoe.h +++ b/src/include/gpxe/aoe.h @@ -10,6 +10,8 @@ #include #include #include +#include +#include #include /** An AoE ATA command */ @@ -89,29 +91,31 @@ struct aoe_session { /** Target MAC address */ uint8_t target[ETH_ALEN]; - /** Tag for current command */ + /** Tag for current AoE command */ uint32_t tag; + /** Current ATA command */ struct ata_command *command; - /** Status of the command */ - int status; + /** Overall status of current ATA command */ + unsigned int status; /** Byte offset within command's data buffer */ unsigned int command_offset; + /** Asynchronous operation for this command */ + struct async_operation aop; + + /** Retransmission timer */ + struct retry_timer timer; }; #define AOE_STATUS_ERR_MASK 0x0f /**< Error portion of status code */ #define AOE_STATUS_PENDING 0x80 /**< Command pending */ -#define AOE_STATUS_UNDERRUN 0x40 /**< Buffer overrun */ -#define AOE_STATUS_OVERRUN 0x20 /**< Buffer underrun */ /** Maximum number of sectors per packet */ #define AOE_MAX_COUNT 2 extern void aoe_open ( struct aoe_session *aoe ); extern void aoe_close ( struct aoe_session *aoe ); -extern int aoe_issue ( struct aoe_session *aoe, struct ata_command *command ); -extern int aoe_issue_split ( struct aoe_session *aoe, - struct ata_command *command ); +extern void aoe_issue ( struct aoe_session *aoe, struct ata_command *command ); /** An AoE device */ struct aoe_device { -- cgit v1.2.3-55-g7522