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Date: Thu, 19 May 2011 20:19:13 -0700
From: "Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To: linux-kernel <linux-kernel@...r.kernel.org>,
linux-scsi <linux-scsi@...r.kernel.org>,
James Bottomley <James.Bottomley@...senPartnership.com>
Cc: Christoph Hellwig <hch@....de>, Hannes Reinecke <hare@...e.de>,
FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
Andy Grover <agrover@...hat.com>,
Mike Christie <michaelc@...wisc.edu>,
Boaz Harrosh <bharrosh@...asas.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Martin Svec <martin.svec@...er.cz>,
Nicholas Bellinger <nab@...ux-iscsi.org>
Subject: [PATCH 5/6] target: Convert REPORT_LUNs to use int_to_scsilun
From: Nicholas Bellinger <nab@...ux-iscsi.org>
This patch converts transport_core_report_lun_response() to use
drivers/scsi/scsi_scan.c:int_to_scsilun instead of using the
struct target_core_fabric_ops->pack_lun() fabric provided API vector.
It also removes the tfo->pack_lun check from target_fabric_tf_ops_check()
and removes from struct target_core_fabric_ops->pack_lun() from
target_core_fabric_ops.h, and the following mainline scsi-misc fabric
modules:
*) tcm_loop: Drop tcm_loop_pack_lun() usage
*) tcm_fc: Drop ft_pack_lun() usage
Reported-by: Mike Christie <michaelc@...wisc.edu>
Signed-off-by: Nicholas A. Bellinger <nab@...ux-iscsi.org>
---
drivers/target/loopback/tcm_loop.c | 13 -------------
drivers/target/target_core_configfs.c | 4 ----
drivers/target/target_core_device.c | 25 +++++--------------------
drivers/target/tcm_fc/tfc_conf.c | 8 --------
include/target/target_core_fabric_ops.h | 1 -
5 files changed, 5 insertions(+), 46 deletions(-)
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index aed4e46..09681ba 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -939,18 +939,6 @@ static u16 tcm_loop_get_fabric_sense_len(void)
return 0;
}
-static u64 tcm_loop_pack_lun(unsigned int lun)
-{
- u64 result;
-
- /* LSB of lun into byte 1 big-endian */
- result = ((lun & 0xff) << 8);
- /* use flat space addressing method */
- result |= 0x40 | ((lun >> 8) & 0x3f);
-
- return cpu_to_le64(result);
-}
-
static char *tcm_loop_dump_proto_id(struct tcm_loop_hba *tl_hba)
{
switch (tl_hba->tl_proto_id) {
@@ -1481,7 +1469,6 @@ static int tcm_loop_register_configfs(void)
fabric->tf_ops.set_fabric_sense_len = &tcm_loop_set_fabric_sense_len;
fabric->tf_ops.get_fabric_sense_len = &tcm_loop_get_fabric_sense_len;
fabric->tf_ops.is_state_remove = &tcm_loop_is_state_remove;
- fabric->tf_ops.pack_lun = &tcm_loop_pack_lun;
tf_cg = &fabric->tf_group;
/*
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index a5f44a6..ee6fad9 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -497,10 +497,6 @@ static int target_fabric_tf_ops_check(
printk(KERN_ERR "Missing tfo->is_state_remove()\n");
return -EINVAL;
}
- if (!(tfo->pack_lun)) {
- printk(KERN_ERR "Missing tfo->pack_lun()\n");
- return -EINVAL;
- }
/*
* We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn()
* tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index fc10ed4..8407f9c 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -38,6 +38,7 @@
#include <net/sock.h>
#include <net/tcp.h>
#include <scsi/scsi.h>
+#include <scsi/scsi_device.h>
#include <target/target_core_base.h>
#include <target/target_core_device.h>
@@ -658,8 +659,7 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd)
struct se_session *se_sess = SE_SESS(se_cmd);
struct se_task *se_task;
unsigned char *buf = (unsigned char *)T_TASK(se_cmd)->t_task_buf;
- u32 cdb_offset = 0, lun_count = 0, offset = 8;
- u64 i, lun;
+ u32 cdb_offset = 0, lun_count = 0, offset = 8, i;
list_for_each_entry(se_task, &T_TASK(se_cmd)->t_task_list, t_list)
break;
@@ -675,15 +675,7 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd)
* a $FABRIC_MOD. In that case, report LUN=0 only.
*/
if (!(se_sess)) {
- lun = 0;
- buf[offset++] = ((lun >> 56) & 0xff);
- buf[offset++] = ((lun >> 48) & 0xff);
- buf[offset++] = ((lun >> 40) & 0xff);
- buf[offset++] = ((lun >> 32) & 0xff);
- buf[offset++] = ((lun >> 24) & 0xff);
- buf[offset++] = ((lun >> 16) & 0xff);
- buf[offset++] = ((lun >> 8) & 0xff);
- buf[offset++] = (lun & 0xff);
+ int_to_scsilun(0, (struct scsi_lun *)&buf[offset]);
lun_count = 1;
goto done;
}
@@ -703,15 +695,8 @@ int transport_core_report_lun_response(struct se_cmd *se_cmd)
if ((cdb_offset + 8) >= se_cmd->data_length)
continue;
- lun = cpu_to_be64(CMD_TFO(se_cmd)->pack_lun(deve->mapped_lun));
- buf[offset++] = ((lun >> 56) & 0xff);
- buf[offset++] = ((lun >> 48) & 0xff);
- buf[offset++] = ((lun >> 40) & 0xff);
- buf[offset++] = ((lun >> 32) & 0xff);
- buf[offset++] = ((lun >> 24) & 0xff);
- buf[offset++] = ((lun >> 16) & 0xff);
- buf[offset++] = ((lun >> 8) & 0xff);
- buf[offset++] = (lun & 0xff);
+ int_to_scsilun(deve->mapped_lun, (struct scsi_lun *)&buf[offset]);
+ offset += 8;
cdb_offset += 8;
}
spin_unlock_irq(&SE_NODE_ACL(se_sess)->device_list_lock);
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index fcdbbff..84e868c 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -519,13 +519,6 @@ static u32 ft_tpg_get_inst_index(struct se_portal_group *se_tpg)
return tpg->index;
}
-static u64 ft_pack_lun(unsigned int index)
-{
- WARN_ON(index >= 256);
- /* Caller wants this byte-swapped */
- return cpu_to_le64((index & 0xff) << 8);
-}
-
static struct target_core_fabric_ops ft_fabric_ops = {
.get_fabric_name = ft_get_fabric_name,
.get_fabric_proto_ident = fc_get_fabric_proto_ident,
@@ -564,7 +557,6 @@ static struct target_core_fabric_ops ft_fabric_ops = {
.get_fabric_sense_len = ft_get_fabric_sense_len,
.set_fabric_sense_len = ft_set_fabric_sense_len,
.is_state_remove = ft_is_state_remove,
- .pack_lun = ft_pack_lun,
/*
* Setup function pointers for generic logic in
* target_core_fabric_configfs.c
diff --git a/include/target/target_core_fabric_ops.h b/include/target/target_core_fabric_ops.h
index dc78f77..747e140 100644
--- a/include/target/target_core_fabric_ops.h
+++ b/include/target/target_core_fabric_ops.h
@@ -77,7 +77,6 @@ struct target_core_fabric_ops {
u16 (*set_fabric_sense_len)(struct se_cmd *, u32);
u16 (*get_fabric_sense_len)(void);
int (*is_state_remove)(struct se_cmd *);
- u64 (*pack_lun)(unsigned int);
/*
* fabric module calls for target_core_fabric_configfs.c
*/
--
1.7.5.1
--
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