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Commit cf4e6363 authored by Michael Chan's avatar Michael Chan Committed by James Bottomley
Browse files

[SCSI] bnx2i: Add bnx2i iSCSI driver. 



New iSCSI driver for Broadcom BNX2 devices.  The driver interfaces with
the CNIC driver to access the hardware.

Signed-off-by: default avatarAnil Veerabhadrappa <anilgv@broadcom.com>
Signed-off-by: default avatarMichael Chan <mchan@broadcom.com>
Signed-off-by: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent a4636960

drivers/scsi/Kconfig

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@@ -354,6 +354,7 @@ config ISCSI_TCP 
	 http://open-iscsi.org



source "drivers/scsi/cxgb3i/Kconfig"

source "drivers/scsi/bnx2i/Kconfig"



config SGIWD93_SCSI

	tristate "SGI WD93C93 SCSI Driver"

drivers/scsi/Makefile

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@@ -129,6 +129,7 @@ obj-$(CONFIG_SCSI_STEX) += stex.o 
obj-$(CONFIG_SCSI_MVSAS)	+= mvsas/

obj-$(CONFIG_PS3_ROM)		+= ps3rom.o

obj-$(CONFIG_SCSI_CXGB3_ISCSI)	+= libiscsi.o libiscsi_tcp.o cxgb3i/

obj-$(CONFIG_SCSI_BNX2_ISCSI)	+= libiscsi.o bnx2i/



obj-$(CONFIG_ARM)		+= arm/

drivers/scsi/bnx2i/57xx_iscsi_constants.h

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/* 57xx_iscsi_constants.h: Broadcom NetXtreme II iSCSI HSI

 *

 * Copyright (c) 2006 - 2009 Broadcom Corporation

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation.

 *

 * Written by: Anil Veerabhadrappa (anilgv@broadcom.com)

 */

#ifndef __57XX_ISCSI_CONSTANTS_H_

#define __57XX_ISCSI_CONSTANTS_H_



/**

* This file defines HSI constants for the iSCSI flows

*/



/* iSCSI request op codes */

#define ISCSI_OPCODE_CLEANUP_REQUEST    (7)



/* iSCSI response/messages op codes */

#define ISCSI_OPCODE_CLEANUP_RESPONSE 		(0x27)

#define ISCSI_OPCODE_NOPOUT_LOCAL_COMPLETION    (0)



/* iSCSI task types */

#define ISCSI_TASK_TYPE_READ    (0)

#define ISCSI_TASK_TYPE_WRITE   (1)

#define ISCSI_TASK_TYPE_MPATH   (2)



/* initial CQ sequence numbers */

#define ISCSI_INITIAL_SN    (1)



/* KWQ (kernel work queue) layer codes */

#define ISCSI_KWQE_LAYER_CODE   (6)



/* KWQ (kernel work queue) request op codes */

#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN1 (0)

#define ISCSI_KWQE_OPCODE_OFFLOAD_CONN2 (1)

#define ISCSI_KWQE_OPCODE_UPDATE_CONN   (2)

#define ISCSI_KWQE_OPCODE_DESTROY_CONN  (3)

#define ISCSI_KWQE_OPCODE_INIT1         (4)

#define ISCSI_KWQE_OPCODE_INIT2         (5)



/* KCQ (kernel completion queue) response op codes */

#define ISCSI_KCQE_OPCODE_OFFLOAD_CONN  (0x10)

#define ISCSI_KCQE_OPCODE_UPDATE_CONN   (0x12)

#define ISCSI_KCQE_OPCODE_DESTROY_CONN  (0x13)

#define ISCSI_KCQE_OPCODE_INIT          (0x14)

#define ISCSI_KCQE_OPCODE_FW_CLEAN_TASK	(0x15)

#define ISCSI_KCQE_OPCODE_TCP_RESET     (0x16)

#define ISCSI_KCQE_OPCODE_TCP_SYN       (0x17)

#define ISCSI_KCQE_OPCODE_TCP_FIN       (0X18)

#define ISCSI_KCQE_OPCODE_TCP_ERROR     (0x19)

#define ISCSI_KCQE_OPCODE_CQ_EVENT_NOTIFICATION (0x20)

#define ISCSI_KCQE_OPCODE_ISCSI_ERROR   (0x21)



/* KCQ (kernel completion queue) completion status */

#define ISCSI_KCQE_COMPLETION_STATUS_SUCCESS                            (0x0)

#define ISCSI_KCQE_COMPLETION_STATUS_INVALID_OPCODE                     (0x1)

#define ISCSI_KCQE_COMPLETION_STATUS_CTX_ALLOC_FAILURE                  (0x2)

#define ISCSI_KCQE_COMPLETION_STATUS_CTX_FREE_FAILURE                   (0x3)

#define ISCSI_KCQE_COMPLETION_STATUS_NIC_ERROR                          (0x4)



#define ISCSI_KCQE_COMPLETION_STATUS_HDR_DIG_ERR                        (0x5)

#define ISCSI_KCQE_COMPLETION_STATUS_DATA_DIG_ERR                       (0x6)



#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_UNEXPECTED_OPCODE     (0xa)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_OPCODE                (0xb)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_AHS_LEN               (0xc)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ITT                   (0xd)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_STATSN                (0xe)



/* Response */

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_EXP_DATASN            (0xf)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T              (0x10)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_IS_ZERO  (0x2c)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_TOO_BIG  (0x2d)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_0                 (0x11)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_1                 (0x12)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_2                 (0x13)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_3                 (0x14)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_4                 (0x15)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_5                 (0x16)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_O_U_6                 (0x17)



/* Data-In */

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_RCV_LEN        (0x18)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_RCV_PDU_LEN       (0x19)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_F_BIT_ZERO            (0x1a)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_NOT_RSRV          (0x1b)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATASN                (0x1c)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REMAIN_BURST_LEN      (0x1d)



/* R2T */

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_BUFFER_OFF            (0x1f)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_LUN                   (0x20)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_R2TSN                 (0x21)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_0 (0x22)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DESIRED_DATA_TRNS_LEN_1 (0x23)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_EXCEED       (0x24)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_TTT_IS_RSRV           (0x25)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_MAX_BURST_LEN         (0x26)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_DATA_SEG_LEN_NOT_ZERO (0x27)



/* TMF */

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_REJECT_PDU_LEN        (0x28)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_ASYNC_PDU_LEN         (0x29)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_NOPIN_PDU_LEN         (0x2a)

#define ISCSI_KCQE_COMPLETION_STATUS_PROTOCOL_ERR_PEND_R2T_IN_CLEANUP   (0x2b)



/* IP/TCP processing errors: */

#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_FRAGMENT               (0x40)

#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_IP_OPTIONS                (0x41)

#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_URGENT_FLAG               (0x42)

#define ISCI_KCQE_COMPLETION_STATUS_TCP_ERROR_MAX_RTRANS                (0x43)



/* iSCSI licensing errors */

/* general iSCSI license not installed */

#define ISCSI_KCQE_COMPLETION_STATUS_ISCSI_NOT_SUPPORTED                (0x50)

/* additional LOM specific iSCSI license not installed */

#define ISCSI_KCQE_COMPLETION_STATUS_LOM_ISCSI_NOT_ENABLED              (0x51)



/* SQ/RQ/CQ DB structure sizes */

#define ISCSI_SQ_DB_SIZE    (16)

#define ISCSI_RQ_DB_SIZE    (16)

#define ISCSI_CQ_DB_SIZE    (80)



#define ISCSI_SQN_TO_NOTIFY_NOT_VALID                                   0xFFFF



/* Page size codes (for flags field in connection offload request) */

#define ISCSI_PAGE_SIZE_256     (0)

#define ISCSI_PAGE_SIZE_512     (1)

#define ISCSI_PAGE_SIZE_1K      (2)

#define ISCSI_PAGE_SIZE_2K      (3)

#define ISCSI_PAGE_SIZE_4K      (4)

#define ISCSI_PAGE_SIZE_8K      (5)

#define ISCSI_PAGE_SIZE_16K     (6)

#define ISCSI_PAGE_SIZE_32K     (7)

#define ISCSI_PAGE_SIZE_64K     (8)

#define ISCSI_PAGE_SIZE_128K    (9)

#define ISCSI_PAGE_SIZE_256K    (10)

#define ISCSI_PAGE_SIZE_512K    (11)

#define ISCSI_PAGE_SIZE_1M      (12)

#define ISCSI_PAGE_SIZE_2M      (13)

#define ISCSI_PAGE_SIZE_4M      (14)

#define ISCSI_PAGE_SIZE_8M      (15)



/* Iscsi PDU related defines */

#define ISCSI_HEADER_SIZE   (48)

#define ISCSI_DIGEST_SHIFT  (2)

#define ISCSI_DIGEST_SIZE   (4)



#define B577XX_ISCSI_CONNECTION_TYPE    3



#endif /*__57XX_ISCSI_CONSTANTS_H_ */

drivers/scsi/bnx2i/57xx_iscsi_hsi.h

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File added.

Preview size limit exceeded, changes collapsed.

drivers/scsi/bnx2i/Kconfig

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config SCSI_BNX2_ISCSI

	tristate "Broadcom NetXtreme II iSCSI support"

	select SCSI_ISCSI_ATTRS

	select CNIC

	---help---

	This driver supports iSCSI offload for the Broadcom NetXtreme II

	devices.