File open-iscsi-add-sles10-compat of Package open-iscsi

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File open-iscsi-add-sles10-compat of Package open-iscsi (Revision 2d2377867a17f6e7c2c13c6a6d22861f)

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From ac7c5a688f81c01065e7545313c909dc20d2837b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Thu, 31 Jul 2008 11:31:15 +0200
Subject: [PATCH] Add SLES10 SP2 compat
MIME-Version: 1.0
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Hi Mike,

due to popular demand I've cranked together a SLES10 SP2 compat
patch. You'll have to build it with

make KSRC=/usr/src/linux KBUILD_OUTPUT=/usr/src/linux-obj/<arch>/<flavour>

Can you add it to the git tree?

Thanks,

Hannes
--
Dr. Hannes Reinecke		      zSeries & Storage
hare@suse.de			      +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: Markus Rex, HRB 16746 (AG Nürnberg)

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commit 97dc544d90e98ef399640010a9a019bcaaa6bf4f
Author: Hannes Reinecke <hare@suse.de>
Date:   Thu Jul 31 11:19:58 2008 +0200

Compat patch for SLES10 SP2

In SLES10 SP2 we've updated the SCSI stack to match 2.6.21 more closely.
    Hence we need our own compat patch to deal with this.

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 kernel/2.6.16-suse.patch |  864 ++++++++++++++++++++++++++++++++++++++++++++++
 kernel/Makefile          |   19 +
 2 files changed, 883 insertions(+), 0 deletions(-)
 create mode 100644 kernel/2.6.16-suse.patch

diff --git a/kernel/2.6.16-suse.patch b/kernel/2.6.16-suse.patch
new file mode 100644
index 0000000..f24babd
--- /dev/null
+++ b/kernel/2.6.16-suse.patch
@@ -0,0 +1,864 @@
+diff --git a/iscsi_tcp.c b/iscsi_tcp.c
+index 908b541..dfd8e31 100644
+--- a/iscsi_tcp.c
++++ b/iscsi_tcp.c
+@@ -426,6 +426,17 @@ iscsi_segment_seek_sg(struct iscsi_segment *segment,
+ 
+ 	debug_scsi("iscsi_segment_seek_sg offset %u size %llu\n",
+ 		  offset, size);
++
++	/*
++	 * older kernels could send use_sg=0 for commands like sgio
++	 * or scsi-ml commands.
++	 */
++	if (!sg_count) {
++		iscsi_segment_init_linear(segment, (void *)sg_list + offset,
++					  size, done, hash);
++		return 0;
++	}
++
+ 	__iscsi_segment_init(segment, size, done, hash);
+ 	for_each_sg(sg_list, sg, sg_count, i) {
+ 		debug_scsi("sg %d, len %u offset %u\n", i, sg->length,
+@@ -536,7 +547,7 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
+ 	struct iscsi_session *session = conn->session;
+ 	struct scsi_cmnd *sc = task->sc;
+ 	int datasn = be32_to_cpu(rhdr->datasn);
+-	unsigned total_in_length = scsi_in(sc)->length;
++	unsigned total_in_length = scsi_bufflen(sc);
+ 
+ 	iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
+ 	if (tcp_conn->in.datalen == 0)
+@@ -568,7 +579,7 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
+ 			if (res_count > 0 &&
+ 			    (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
+ 			     res_count <= total_in_length))
+-				scsi_in(sc)->resid = res_count;
++				scsi_set_resid(sc, res_count);
+ 			else
+ 				sc->result = (DID_BAD_TARGET << 16) |
+ 					rhdr->cmd_status;
+@@ -679,11 +690,11 @@ iscsi_r2t_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
+ 			    r2t->data_length, session->max_burst);
+ 
+ 	r2t->data_offset = be32_to_cpu(rhdr->data_offset);
+-	if (r2t->data_offset + r2t->data_length > scsi_out(task->sc)->length) {
++	if (r2t->data_offset + r2t->data_length > scsi_bufflen(task->sc)) {
+ 		iscsi_conn_printk(KERN_ERR, conn,
+ 				  "invalid R2T with data len %u at offset %u "
+ 				  "and total length %d\n", r2t->data_length,
+-				  r2t->data_offset, scsi_out(task->sc)->length);
++				  r2t->data_offset, scsi_bufflen(task->sc));
+ 		__kfifo_put(tcp_task->r2tpool.queue, (void*)&r2t,
+ 			    sizeof(void*));
+ 		return ISCSI_ERR_DATALEN;
+@@ -783,7 +794,6 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
+ 		if (tcp_conn->in.datalen) {
+ 			struct iscsi_tcp_task *tcp_task = task->dd_data;
+ 			struct hash_desc *rx_hash = NULL;
+-			struct scsi_data_buffer *sdb = scsi_in(task->sc);
+ 
+ 			/*
+ 			 * Setup copy of Data-In into the Scsi_Cmnd
+@@ -801,8 +811,8 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
+ 				  tcp_task->data_offset,
+ 				  tcp_conn->in.datalen);
+ 			rc = iscsi_segment_seek_sg(&tcp_conn->in.segment,
+-						   sdb->table.sgl,
+-						   sdb->table.nents,
++						   scsi_sglist(task->sc),
++						   scsi_sg_count(task->sc),
+ 						   tcp_task->data_offset,
+ 						   tcp_conn->in.datalen,
+ 						   iscsi_tcp_process_data_in,
+@@ -1369,8 +1379,8 @@ iscsi_tcp_task_init(struct iscsi_task *task)
+ 		return 0;
+ 
+ 	/* If we have immediate data, attach a payload */
+-	err = iscsi_tcp_send_data_prep(conn, scsi_out(sc)->table.sgl,
+-				       scsi_out(sc)->table.nents,
++	err = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
++				       scsi_sg_count(sc),
+ 				       0, task->imm_count);
+ 	if (err)
+ 		return err;
+@@ -1393,7 +1403,6 @@ iscsi_tcp_task_xmit(struct iscsi_task *task)
+ 	struct iscsi_conn *conn = task->conn;
+ 	struct iscsi_tcp_task *tcp_task = task->dd_data;
+ 	struct scsi_cmnd *sc = task->sc;
+-	struct scsi_data_buffer *sdb;
+ 	int rc = 0;
+ 
+ flush:
+@@ -1413,7 +1422,6 @@ flush:
+ 	if (sc->sc_data_direction != DMA_TO_DEVICE)
+ 		return 0;
+ 
+-	sdb = scsi_out(sc);
+ 	if (task->unsol_count != 0) {
+ 		struct iscsi_data *hdr = &tcp_task->unsol_dtask.hdr;
+ 
+@@ -1428,8 +1436,8 @@ flush:
+ 				task->itt, tcp_task->sent, task->data_count);
+ 
+ 		iscsi_tcp_send_hdr_prep(conn, hdr, sizeof(*hdr));
+-		rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl,
+-					      sdb->table.nents, tcp_task->sent,
++		rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
++					      scsi_sg_count(sc), tcp_task->sent,
+ 					      task->data_count);
+ 		if (rc)
+ 			goto fail;
+@@ -1475,8 +1483,8 @@ flush:
+ 		iscsi_tcp_send_hdr_prep(conn, &r2t->dtask.hdr,
+ 					sizeof(struct iscsi_hdr));
+ 
+-		rc = iscsi_tcp_send_data_prep(conn, sdb->table.sgl,
+-					      sdb->table.nents,
++		rc = iscsi_tcp_send_data_prep(conn, scsi_sglist(sc),
++					      scsi_sg_count(sc),
+ 					      r2t->data_offset + r2t->sent,
+ 					      r2t->data_count);
+ 		if (rc)
+@@ -1864,7 +1872,11 @@ iscsi_tcp_session_create(struct iscsi_endpoint *ep, uint16_t cmds_max,
+ 	shost->max_lun = iscsi_max_lun;
+ 	shost->max_id = 0;
+ 	shost->max_channel = 0;
++#ifndef SCSI_MAX_VARLEN_CDB_SIZE
++	shost->max_cmd_len = 16;
++#else
+ 	shost->max_cmd_len = SCSI_MAX_VARLEN_CDB_SIZE;
++#endif
+ 
+ 	if (iscsi_host_add(shost, NULL))
+ 		goto free_host;
+@@ -1917,6 +1929,9 @@ static int iscsi_tcp_slave_configure(struct scsi_device *sdev)
+ }
+ 
+ static struct scsi_host_template iscsi_sht = {
++#if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,24)
++	.use_sg_chaining	= ENABLE_SG_CHAINING,
++#endif
+ 	.module			= THIS_MODULE,
+ 	.name			= "iSCSI Initiator over TCP/IP",
+ 	.queuecommand           = iscsi_queuecommand,
+diff --git a/iscsi_tcp.h b/iscsi_tcp.h
+index 68423e8..1796c96 100644
+--- a/iscsi_tcp.h
++++ b/iscsi_tcp.h
+@@ -24,6 +24,8 @@
+ 
+ #include "libiscsi.h"
+ 
++#include "open_iscsi_compat.h"
++
+ struct crypto_hash;
+ struct socket;
+ struct iscsi_tcp_conn;
+diff --git a/libiscsi.c b/libiscsi.c
+index dfeaed3..0fb0705 100644
+--- a/libiscsi.c
++++ b/libiscsi.c
+@@ -24,7 +24,10 @@
+ #include <linux/types.h>
+ #include <linux/kfifo.h>
+ #include <linux/delay.h>
++#include <linux/version.h>
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
+ #include <linux/log2.h>
++#endif
+ #include <asm/unaligned.h>
+ #include <net/tcp.h>
+ #include <scsi/scsi_cmnd.h>
+@@ -187,7 +190,7 @@ static int iscsi_prep_bidi_ahs(struct iscsi_task *task)
+ 						  sizeof(rlen_ahdr->reserved));
+ 	rlen_ahdr->ahstype = ISCSI_AHSTYPE_RLENGTH;
+ 	rlen_ahdr->reserved = 0;
+-	rlen_ahdr->read_length = cpu_to_be32(scsi_in(sc)->length);
++	rlen_ahdr->read_length = cpu_to_be32(scsi_bufflen(sc));
+ 
+ 	debug_scsi("bidi-in rlen_ahdr->read_length(%d) "
+ 		   "rlen_ahdr->ahslength(%d)\n",
+@@ -242,7 +245,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
+ 			return rc;
+ 	}
+ 	if (sc->sc_data_direction == DMA_TO_DEVICE) {
+-		unsigned out_len = scsi_out(sc)->length;
++		unsigned out_len = scsi_bufflen(sc);
+ 		hdr->data_length = cpu_to_be32(out_len);
+ 		hdr->flags |= ISCSI_FLAG_CMD_WRITE;
+ 		/*
+@@ -286,7 +289,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
+ 	} else {
+ 		hdr->flags |= ISCSI_FLAG_CMD_FINAL;
+ 		zero_data(hdr->dlength);
+-		hdr->data_length = cpu_to_be32(scsi_in(sc)->length);
++		hdr->data_length = cpu_to_be32(scsi_bufflen(sc));
+ 
+ 		if (sc->sc_data_direction == DMA_FROM_DEVICE)
+ 			hdr->flags |= ISCSI_FLAG_CMD_READ;
+@@ -314,7 +317,7 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
+ 		   "bidirectional" : sc->sc_data_direction == DMA_TO_DEVICE ?
+ 		   "write" : "read", conn->id, sc, sc->cmnd[0], task->itt,
+ 		   scsi_bufflen(sc),
+-		   scsi_bidi_cmnd(sc) ? scsi_in(sc)->length : 0,
++		   scsi_bidi_cmnd(sc) ? scsi_bufflen(sc) : 0,
+ 		   session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
+ 	return 0;
+ }
+@@ -412,12 +415,7 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_task *task,
+ 		return;
+ 
+ 	sc->result = err;
+-	if (!scsi_bidi_cmnd(sc))
+-		scsi_set_resid(sc, scsi_bufflen(sc));
+-	else {
+-		scsi_out(sc)->resid = scsi_out(sc)->length;
+-		scsi_in(sc)->resid = scsi_in(sc)->length;
+-	}
++	scsi_set_resid(sc, scsi_bufflen(sc));
+ 
+ 	if (conn->task == task)
+ 		conn->task = NULL;
+@@ -592,7 +590,7 @@ invalid_datalen:
+ 			goto out;
+ 		}
+ 
+-		senselen = get_unaligned_be16(data);
++		senselen = be16_to_cpu(get_unaligned((__be16 *) data));
+ 		if (datalen < senselen)
+ 			goto invalid_datalen;
+ 
+@@ -608,8 +606,8 @@ invalid_datalen:
+ 
+ 		if (scsi_bidi_cmnd(sc) && res_count > 0 &&
+ 				(rhdr->flags & ISCSI_FLAG_CMD_BIDI_OVERFLOW ||
+-				 res_count <= scsi_in(sc)->length))
+-			scsi_in(sc)->resid = res_count;
++				 res_count <= scsi_bufflen(sc)))
++			scsi_set_resid(sc, res_count);
+ 		else
+ 			sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
+ 	}
+@@ -1127,10 +1125,9 @@ again:
+ 	return rc;
+ }
+ 
+-static void iscsi_xmitworker(struct work_struct *work)
++static void iscsi_xmitworker(void *data)
+ {
+-	struct iscsi_conn *conn =
+-		container_of(work, struct iscsi_conn, xmitwork);
++	struct iscsi_conn *conn = data;
+ 	int rc;
+ 	/*
+ 	 * serialize Xmit worker on a per-connection basis.
+@@ -1273,12 +1270,7 @@ reject:
+ fault:
+ 	spin_unlock(&session->lock);
+ 	debug_scsi("iscsi: cmd 0x%x is not queued (%d)\n", sc->cmnd[0], reason);
+-	if (!scsi_bidi_cmnd(sc))
+-		scsi_set_resid(sc, scsi_bufflen(sc));
+-	else {
+-		scsi_out(sc)->resid = scsi_out(sc)->length;
+-		scsi_in(sc)->resid = scsi_in(sc)->length;
+-	}
++	scsi_set_resid(sc, scsi_bufflen(sc));
+ 	done(sc);
+ 	spin_lock(host->host_lock);
+ 	return 0;
+@@ -2099,7 +2091,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
+ 	INIT_LIST_HEAD(&conn->mgmtqueue);
+ 	INIT_LIST_HEAD(&conn->xmitqueue);
+ 	INIT_LIST_HEAD(&conn->requeue);
+-	INIT_WORK(&conn->xmitwork, iscsi_xmitworker);
++	INIT_WORK(&conn->xmitwork, iscsi_xmitworker, conn);
+ 
+ 	/* allocate login_task used for the login/text sequences */
+ 	spin_lock_bh(&session->lock);
+diff --git a/libiscsi.h b/libiscsi.h
+index cfc5fa6..64508d8 100644
+--- a/libiscsi.h
++++ b/libiscsi.h
+@@ -32,6 +32,8 @@
+ #include "iscsi_proto.h"
+ #include "iscsi_if.h"
+ 
++#include "open_iscsi_compat.h"
++
+ struct scsi_transport_template;
+ struct scsi_host_template;
+ struct scsi_device;
+diff --git a/scsi_transport_iscsi.c b/scsi_transport_iscsi.c
+index 535e461..1ae65fb 100644
+--- a/scsi_transport_iscsi.c
++++ b/scsi_transport_iscsi.c
+@@ -41,13 +41,13 @@ struct iscsi_internal {
+ 	struct scsi_transport_template t;
+ 	struct iscsi_transport *iscsi_transport;
+ 	struct list_head list;
+-	struct device dev;
++	struct class_device cdev;
+ 
+-	struct device_attribute *host_attrs[ISCSI_HOST_ATTRS + 1];
++	struct class_device_attribute *host_attrs[ISCSI_HOST_ATTRS + 1];
+ 	struct transport_container conn_cont;
+-	struct device_attribute *conn_attrs[ISCSI_CONN_ATTRS + 1];
++	struct class_device_attribute *conn_attrs[ISCSI_CONN_ATTRS + 1];
+ 	struct transport_container session_cont;
+-	struct device_attribute *session_attrs[ISCSI_SESSION_ATTRS + 1];
++	struct class_device_attribute *session_attrs[ISCSI_SESSION_ATTRS + 1];
+ };
+ 
+ static atomic_t iscsi_session_nr; /* sysfs session id for next new session */
+@@ -64,12 +64,12 @@ static DEFINE_SPINLOCK(iscsi_transport_lock);
+ #define to_iscsi_internal(tmpl) \
+ 	container_of(tmpl, struct iscsi_internal, t)
+ 
+-#define dev_to_iscsi_internal(_dev) \
+-	container_of(_dev, struct iscsi_internal, dev)
++#define cdev_to_iscsi_internal(_cdev) \
++	container_of(_cdev, struct iscsi_internal, cdev)
+ 
+-static void iscsi_transport_release(struct device *dev)
++static void iscsi_transport_release(struct class_device *cdev)
+ {
+-	struct iscsi_internal *priv = dev_to_iscsi_internal(dev);
++	struct iscsi_internal *priv = cdev_to_iscsi_internal(cdev);
+ 	kfree(priv);
+ }
+ 
+@@ -79,33 +79,31 @@ static void iscsi_transport_release(struct device *dev)
+  */
+ static struct class iscsi_transport_class = {
+ 	.name = "iscsi_transport",
+-	.dev_release = iscsi_transport_release,
++	.release = iscsi_transport_release,
+ };
+ 
+ static ssize_t
+-show_transport_handle(struct device *dev, struct device_attribute *attr,
+-		      char *buf)
++show_transport_handle(struct class_device *cdev, char *buf)
+ {
+-	struct iscsi_internal *priv = dev_to_iscsi_internal(dev);
++	struct iscsi_internal *priv = cdev_to_iscsi_internal(cdev);
+ 	return sprintf(buf, "%llu\n", (unsigned long long)iscsi_handle(priv->iscsi_transport));
+ }
+-static DEVICE_ATTR(handle, S_IRUGO, show_transport_handle, NULL);
++static CLASS_DEVICE_ATTR(handle, S_IRUGO, show_transport_handle, NULL);
+ 
+ #define show_transport_attr(name, format)				\
+ static ssize_t								\
+-show_transport_##name(struct device *dev, 				\
+-		      struct device_attribute *attr,char *buf)		\
++show_transport_##name(struct class_device *cdev, char *buf)		\
+ {									\
+-	struct iscsi_internal *priv = dev_to_iscsi_internal(dev);	\
++	struct iscsi_internal *priv = cdev_to_iscsi_internal(cdev);	\
+ 	return sprintf(buf, format"\n", priv->iscsi_transport->name);	\
+ }									\
+-static DEVICE_ATTR(name, S_IRUGO, show_transport_##name, NULL);
++static CLASS_DEVICE_ATTR(name, S_IRUGO, show_transport_##name, NULL);
+ 
+ show_transport_attr(caps, "0x%x");
+ 
+ static struct attribute *iscsi_transport_attrs[] = {
+-	&dev_attr_handle.attr,
+-	&dev_attr_caps.attr,
++	&class_device_attr_handle.attr,
++	&class_device_attr_caps.attr,
+ 	NULL,
+ };
+ 
+@@ -113,6 +111,7 @@ static struct attribute_group iscsi_transport_group = {
+ 	.attrs = iscsi_transport_attrs,
+ };
+ 
++#if 0
+ /*
+  * iSCSI endpoint attrs
+  */
+@@ -229,9 +228,10 @@ struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle)
+ 	return iscsi_dev_to_endpoint(dev);
+ }
+ EXPORT_SYMBOL_GPL(iscsi_lookup_endpoint);
++#endif
+ 
+ static int iscsi_setup_host(struct transport_container *tc, struct device *dev,
+-			    struct device *cdev)
++			    struct class_device *cdev)
+ {
+ 	struct Scsi_Host *shost = dev_to_shost(dev);
+ 	struct iscsi_cls_host *ihost = shost->shost_data;
+@@ -250,7 +250,7 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev,
+ }
+ 
+ static int iscsi_remove_host(struct transport_container *tc, struct device *dev,
+-			     struct device *cdev)
++			     struct class_device *cdev)
+ {
+ 	struct Scsi_Host *shost = dev_to_shost(dev);
+ 	struct iscsi_cls_host *ihost = shost->shost_data;
+@@ -490,10 +490,9 @@ static int iscsi_user_scan(struct Scsi_Host *shost, uint channel,
+ 				     iscsi_user_scan_session);
+ }
+ 
+-static void iscsi_scan_session(struct work_struct *work)
++static void iscsi_scan_session(void *data)
+ {
+-	struct iscsi_cls_session *session =
+-			container_of(work, struct iscsi_cls_session, scan_work);
++	struct iscsi_cls_session *session = data;
+ 	struct Scsi_Host *shost = iscsi_session_to_shost(session);
+ 	struct iscsi_cls_host *ihost = shost->shost_data;
+ 	struct iscsi_scan_data scan_data;
+@@ -506,11 +505,9 @@ static void iscsi_scan_session(struct work_struct *work)
+ 	atomic_dec(&ihost->nr_scans);
+ }
+ 
+-static void session_recovery_timedout(struct work_struct *work)
++static void session_recovery_timedout(void *data)
+ {
+-	struct iscsi_cls_session *session =
+-		container_of(work, struct iscsi_cls_session,
+-			     recovery_work.work);
++	struct iscsi_cls_session *session = data;
+ 	unsigned long flags;
+ 
+ 	iscsi_cls_session_printk(KERN_INFO, session,
+@@ -536,13 +533,13 @@ static void session_recovery_timedout(struct work_struct *work)
+ 	scsi_target_unblock(&session->dev);
+ }
+ 
+-static void __iscsi_unblock_session(struct work_struct *work)
++static void __iscsi_unblock_session(void *data)
+ {
+-	struct iscsi_cls_session *session =
+-			container_of(work, struct iscsi_cls_session,
+-				     unblock_work);
++	struct iscsi_cls_session *session = data;
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
+ 	struct Scsi_Host *shost = iscsi_session_to_shost(session);
+ 	struct iscsi_cls_host *ihost = shost->shost_data;
++#endif
+ 	unsigned long flags;
+ 
+ 	/*
+@@ -560,10 +557,12 @@ static void __iscsi_unblock_session(struct work_struct *work)
+ 	 * the async scanning code (drivers like iscsi_tcp do login and
+ 	 * scanning from userspace).
+ 	 */
++#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,19)
+ 	if (shost->hostt->scan_finished) {
+ 		if (queue_work(ihost->scan_workq, &session->scan_work))
+ 			atomic_inc(&ihost->nr_scans);
+ 	}
++#endif
+ }
+ 
+ /**
+@@ -583,11 +582,9 @@ void iscsi_unblock_session(struct iscsi_cls_session *session)
+ }
+ EXPORT_SYMBOL_GPL(iscsi_unblock_session);
+ 
+-static void __iscsi_block_session(struct work_struct *work)
++static void __iscsi_block_session(void *data)
+ {
+-	struct iscsi_cls_session *session =
+-			container_of(work, struct iscsi_cls_session,
+-				     block_work);
++	struct iscsi_cls_session *session = data;
+ 	unsigned long flags;
+ 
+ 	spin_lock_irqsave(&session->lock, flags);
+@@ -604,11 +601,9 @@ void iscsi_block_session(struct iscsi_cls_session *session)
+ }
+ EXPORT_SYMBOL_GPL(iscsi_block_session);
+ 
+-static void __iscsi_unbind_session(struct work_struct *work)
++static void __iscsi_unbind_session(void *data)
+ {
+-	struct iscsi_cls_session *session =
+-			container_of(work, struct iscsi_cls_session,
+-				     unbind_work);
++	struct iscsi_cls_session *session = data;
+ 	struct Scsi_Host *shost = iscsi_session_to_shost(session);
+ 	struct iscsi_cls_host *ihost = shost->shost_data;
+ 	unsigned long flags;
+@@ -651,12 +646,12 @@ iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport,
+ 	session->transport = transport;
+ 	session->recovery_tmo = 120;
+ 	session->state = ISCSI_SESSION_FREE;
+-	INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout);
++	INIT_WORK(&session->recovery_work, session_recovery_timedout, session);
+ 	INIT_LIST_HEAD(&session->sess_list);
+-	INIT_WORK(&session->unblock_work, __iscsi_unblock_session);
+-	INIT_WORK(&session->block_work, __iscsi_block_session);
+-	INIT_WORK(&session->unbind_work, __iscsi_unbind_session);
+-	INIT_WORK(&session->scan_work, iscsi_scan_session);
++	INIT_WORK(&session->unblock_work, __iscsi_unblock_session, session);
++	INIT_WORK(&session->block_work, __iscsi_block_session, session);
++	INIT_WORK(&session->unbind_work, __iscsi_unbind_session, session);
++	INIT_WORK(&session->scan_work, iscsi_scan_session, session);
+ 	spin_lock_init(&session->lock);
+ 
+ 	/* this is released in the dev's release function */
+@@ -1300,6 +1295,8 @@ static int
+ iscsi_if_transport_ep(struct iscsi_transport *transport,
+ 		      struct iscsi_uevent *ev, int msg_type)
+ {
++	return -ENOSYS;
++#if 0
+ 	struct iscsi_endpoint *ep;
+ 	struct sockaddr *dst_addr;
+ 	int rc = 0;
+@@ -1340,6 +1337,8 @@ iscsi_if_transport_ep(struct iscsi_transport *transport,
+ 		break;
+ 	}
+ 	return rc;
++
++#endif
+ }
+ 
+ static int
+@@ -1421,6 +1420,9 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 					      ev->u.c_session.queue_depth);
+ 		break;
+ 	case ISCSI_UEVENT_CREATE_BOUND_SESSION:
++		err = -ENOSYS;
++		break;
++#if 0
+ 		ep = iscsi_lookup_endpoint(ev->u.c_bound_session.ep_handle);
+ 		if (!ep) {
+ 			err = -EINVAL;
+@@ -1432,6 +1434,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ 					ev->u.c_bound_session.cmds_max,
+ 					ev->u.c_bound_session.queue_depth);
+ 		break;
++#endif
+ 	case ISCSI_UEVENT_DESTROY_SESSION:
+ 		session = iscsi_session_lookup(ev->u.d_session.sid);
+ 		if (session)
+@@ -1514,55 +1517,70 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
+ }
+ 
+ /*
+- * Get message from skb.  Each message is processed by iscsi_if_recv_msg.
+- * Malformed skbs with wrong lengths or invalid creds are not processed.
++ * Get message from skb (based on rtnetlink_rcv_skb).  Each message is
++ * processed by iscsi_if_recv_msg.  Malformed skbs with wrong lengths or
++ * invalid creds are discarded silently.
+  */
+ static void
+-iscsi_if_rx(struct sk_buff *skb)
++iscsi_if_rx(struct sock *sk, int len)
+ {
++	struct sk_buff *skb;
++
+ 	mutex_lock(&rx_queue_mutex);
+-	while (skb->len >= NLMSG_SPACE(0)) {
+-		int err;
+-		uint32_t rlen;
+-		struct nlmsghdr	*nlh;
+-		struct iscsi_uevent *ev;
+-
+-		nlh = nlmsg_hdr(skb);
+-		if (nlh->nlmsg_len < sizeof(*nlh) ||
+-		    skb->len < nlh->nlmsg_len) {
+-			break;
++	while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) {
++		if (NETLINK_CREDS(skb)->uid) {
++			skb_pull(skb, skb->len);
++			goto free_skb;
+ 		}
+ 
+-		ev = NLMSG_DATA(nlh);
+-		rlen = NLMSG_ALIGN(nlh->nlmsg_len);
+-		if (rlen > skb->len)
+-			rlen = skb->len;
++		while (skb->len >= NLMSG_SPACE(0)) {
++			int err;
++			uint32_t rlen;
++			struct nlmsghdr	*nlh;
++			struct iscsi_uevent *ev;
+ 
+-		err = iscsi_if_recv_msg(skb, nlh);
+-		if (err) {
+-			ev->type = ISCSI_KEVENT_IF_ERROR;
+-			ev->iferror = err;
+-		}
+-		do {
+-			/*
+-			 * special case for GET_STATS:
+-			 * on success - sending reply and stats from
+-			 * inside of if_recv_msg(),
+-			 * on error - fall through.
+-			 */
+-			if (ev->type == ISCSI_UEVENT_GET_STATS && !err)
++			nlh = nlmsg_hdr(skb);
++			if (nlh->nlmsg_len < sizeof(*nlh) ||
++			    skb->len < nlh->nlmsg_len) {
+ 				break;
+-			err = iscsi_if_send_reply(
+-				NETLINK_CREDS(skb)->pid, nlh->nlmsg_seq,
+-				nlh->nlmsg_type, 0, 0, ev, sizeof(*ev));
+-		} while (err < 0 && err != -ECONNREFUSED);
+-		skb_pull(skb, rlen);
++			}
++
++			ev = NLMSG_DATA(nlh);
++			rlen = NLMSG_ALIGN(nlh->nlmsg_len);
++			if (rlen > skb->len)
++				rlen = skb->len;
++
++			err = iscsi_if_recv_msg(skb, nlh);
++			if (err) {
++				ev->type = ISCSI_KEVENT_IF_ERROR;
++				ev->iferror = err;
++			}
++			do {
++				/*
++				 * special case for GET_STATS:
++				 * on success - sending reply and stats from
++				 * inside of if_recv_msg(),
++				 * on error - fall through.
++				 */
++				if (ev->type == ISCSI_UEVENT_GET_STATS && !err)
++					break;
++				err = iscsi_if_send_reply(
++					NETLINK_CREDS(skb)->pid, nlh->nlmsg_seq,
++					nlh->nlmsg_type, 0, 0, ev, sizeof(*ev));
++			} while (err < 0 && err != -ECONNREFUSED);
++			skb_pull(skb, rlen);
++		}
++free_skb:
++		kfree_skb(skb);
+ 	}
+ 	mutex_unlock(&rx_queue_mutex);
+ }
+ 
++#define iscsi_cdev_to_conn(_cdev) \
++	iscsi_dev_to_conn(_cdev->dev)
++
+ #define ISCSI_CLASS_ATTR(_prefix,_name,_mode,_show,_store)		\
+-struct device_attribute dev_attr_##_prefix##_##_name =	\
++struct class_device_attribute class_device_attr_##_prefix##_##_name =	\
+ 	__ATTR(_name,_mode,_show,_store)
+ 
+ /*
+@@ -1570,10 +1588,9 @@ struct device_attribute dev_attr_##_prefix##_##_name =	\
+  */
+ #define iscsi_conn_attr_show(param)					\
+ static ssize_t								\
+-show_conn_param_##param(struct device *dev, 				\
+-			struct device_attribute *attr, char *buf)	\
++show_conn_param_##param(struct class_device *cdev, char *buf)		\
+ {									\
+-	struct iscsi_cls_conn *conn = iscsi_dev_to_conn(dev->parent);	\
++	struct iscsi_cls_conn *conn = iscsi_cdev_to_conn(cdev);		\
+ 	struct iscsi_transport *t = conn->transport;			\
+ 	return t->get_conn_param(conn, param, buf);			\
+ }
+@@ -1597,16 +1614,17 @@ iscsi_conn_attr(address, ISCSI_PARAM_CONN_ADDRESS);
+ iscsi_conn_attr(ping_tmo, ISCSI_PARAM_PING_TMO);
+ iscsi_conn_attr(recv_tmo, ISCSI_PARAM_RECV_TMO);
+ 
++#define iscsi_cdev_to_session(_cdev) \
++	iscsi_dev_to_session(_cdev->dev)
++
+ /*
+  * iSCSI session attrs
+  */
+ #define iscsi_session_attr_show(param, perm)				\
+ static ssize_t								\
+-show_session_param_##param(struct device *dev,				\
+-			   struct device_attribute *attr, char *buf)	\
++show_session_param_##param(struct class_device *cdev, char *buf)	\
+ {									\
+-	struct iscsi_cls_session *session = 				\
+-		iscsi_dev_to_session(dev->parent);			\
++	struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev); \
+ 	struct iscsi_transport *t = session->transport;			\
+ 									\
+ 	if (perm && !capable(CAP_SYS_ADMIN))				\
+@@ -1640,10 +1658,9 @@ iscsi_session_attr(ifacename, ISCSI_PARAM_IFACE_NAME, 0);
+ iscsi_session_attr(initiatorname, ISCSI_PARAM_INITIATOR_NAME, 0)
+ 
+ static ssize_t
+-show_priv_session_state(struct device *dev, struct device_attribute *attr,
+-			char *buf)
++show_priv_session_state(struct class_device *cdev, char *buf)
+ {
+-	struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent);
++	struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev);
+ 	return sprintf(buf, "%s\n", iscsi_session_state_name(session->state));
+ }
+ static ISCSI_CLASS_ATTR(priv_sess, state, S_IRUGO, show_priv_session_state,
+@@ -1651,11 +1668,9 @@ static ISCSI_CLASS_ATTR(priv_sess, state, S_IRUGO, show_priv_session_state,
+ 
+ #define iscsi_priv_session_attr_show(field, format)			\
+ static ssize_t								\
+-show_priv_session_##field(struct device *dev, 				\
+-			  struct device_attribute *attr, char *buf)	\
++show_priv_session_##field(struct class_device *cdev, char *buf)		\
+ {									\
+-	struct iscsi_cls_session *session = 				\
+-			iscsi_dev_to_session(dev->parent);		\
++	struct iscsi_cls_session *session = iscsi_cdev_to_session(cdev);\
+ 	return sprintf(buf, format"\n", session->field);		\
+ }
+ 
+@@ -1670,10 +1685,9 @@ iscsi_priv_session_attr(recovery_tmo, "%d");
+  */
+ #define iscsi_host_attr_show(param)					\
+ static ssize_t								\
+-show_host_param_##param(struct device *dev, 				\
+-			struct device_attribute *attr, char *buf)	\
++show_host_param_##param(struct class_device *cdev, char *buf)		\
+ {									\
+-	struct Scsi_Host *shost = transport_class_to_shost(dev);	\
++	struct Scsi_Host *shost = transport_class_to_shost(cdev);	\
+ 	struct iscsi_internal *priv = to_iscsi_internal(shost->transportt); \
+ 	return priv->iscsi_transport->get_host_param(shost, param, buf); \
+ }
+@@ -1690,7 +1704,7 @@ iscsi_host_attr(initiatorname, ISCSI_HOST_PARAM_INITIATOR_NAME);
+ 
+ #define SETUP_PRIV_SESSION_RD_ATTR(field)				\
+ do {									\
+-	priv->session_attrs[count] = &dev_attr_priv_sess_##field; \
++	priv->session_attrs[count] = &class_device_attr_priv_sess_##field; \
+ 	count++;							\
+ } while (0)
+ 
+@@ -1698,7 +1712,7 @@ do {									\
+ #define SETUP_SESSION_RD_ATTR(field, param_flag)			\
+ do {									\
+ 	if (tt->param_mask & param_flag) {				\
+-		priv->session_attrs[count] = &dev_attr_sess_##field; \
++		priv->session_attrs[count] = &class_device_attr_sess_##field; \
+ 		count++;						\
+ 	}								\
+ } while (0)
+@@ -1706,7 +1720,7 @@ do {									\
+ #define SETUP_CONN_RD_ATTR(field, param_flag)				\
+ do {									\
+ 	if (tt->param_mask & param_flag) {				\
+-		priv->conn_attrs[count] = &dev_attr_conn_##field; \
++		priv->conn_attrs[count] = &class_device_attr_conn_##field; \
+ 		count++;						\
+ 	}								\
+ } while (0)
+@@ -1714,7 +1728,7 @@ do {									\
+ #define SETUP_HOST_RD_ATTR(field, param_flag)				\
+ do {									\
+ 	if (tt->host_param_mask & param_flag) {				\
+-		priv->host_attrs[count] = &dev_attr_host_##field; \
++		priv->host_attrs[count] = &class_device_attr_host_##field; \
+ 		count++;						\
+ 	}								\
+ } while (0)
+@@ -1807,15 +1821,15 @@ iscsi_register_transport(struct iscsi_transport *tt)
+ 	if (!(tt->caps & CAP_DATA_PATH_OFFLOAD))
+ 		priv->t.create_work_queue = 1;
+ 
+-	priv->dev.class = &iscsi_transport_class;
+-	snprintf(priv->dev.bus_id, BUS_ID_SIZE, "%s", tt->name);
+-	err = device_register(&priv->dev);
++	priv->cdev.class = &iscsi_transport_class;
++	snprintf(priv->cdev.class_id, BUS_ID_SIZE, "%s", tt->name);
++	err = class_device_register(&priv->cdev);
+ 	if (err)
+ 		goto free_priv;
+ 
+-	err = sysfs_create_group(&priv->dev.kobj, &iscsi_transport_group);
++	err = sysfs_create_group(&priv->cdev.kobj, &iscsi_transport_group);
+ 	if (err)
+-		goto unregister_dev;
++		goto unregister_cdev;
+ 
+ 	/* host parameters */
+ 	priv->t.host_attrs.ac.attrs = &priv->host_attrs[0];
+@@ -1894,9 +1908,8 @@ iscsi_register_transport(struct iscsi_transport *tt)
+ 	printk(KERN_NOTICE "iscsi: registered transport (%s)\n", tt->name);
+ 	return &priv->t;
+ 
+-unregister_dev:
+-	device_unregister(&priv->dev);
+-	return NULL;
++unregister_cdev:
++	class_device_unregister(&priv->cdev);
+ free_priv:
+ 	kfree(priv);
+ 	return NULL;
+@@ -1923,8 +1936,8 @@ int iscsi_unregister_transport(struct iscsi_transport *tt)
+ 	transport_container_unregister(&priv->session_cont);
+ 	transport_container_unregister(&priv->t.host_attrs);
+ 
+-	sysfs_remove_group(&priv->dev.kobj, &iscsi_transport_group);
+-	device_unregister(&priv->dev);
++	sysfs_remove_group(&priv->cdev.kobj, &iscsi_transport_group);
++	class_device_unregister(&priv->cdev);
+ 	mutex_unlock(&rx_queue_mutex);
+ 
+ 	return 0;
+@@ -1944,13 +1957,14 @@ static __init int iscsi_transport_init(void)
+ 	if (err)
+ 		return err;
+ 
++#if 0
+ 	err = class_register(&iscsi_endpoint_class);
+ 	if (err)
+ 		goto unregister_transport_class;
+-
++#endif
+ 	err = transport_class_register(&iscsi_host_class);
+ 	if (err)
+-		goto unregister_endpoint_class;
++		goto unregister_transport_class;
+ 
+ 	err = transport_class_register(&iscsi_connection_class);
+ 	if (err)
+@@ -1981,8 +1995,10 @@ unregister_conn_class:
+ 	transport_class_unregister(&iscsi_connection_class);
+ unregister_host_class:
+ 	transport_class_unregister(&iscsi_host_class);
++#if 0
+ unregister_endpoint_class:
+ 	class_unregister(&iscsi_endpoint_class);
++#endif
+ unregister_transport_class:
+ 	class_unregister(&iscsi_transport_class);
+ 	return err;
+@@ -1995,7 +2011,9 @@ static void __exit iscsi_transport_exit(void)
+ 	transport_class_unregister(&iscsi_connection_class);
+ 	transport_class_unregister(&iscsi_session_class);
+ 	transport_class_unregister(&iscsi_host_class);
++#if 0
+ 	class_unregister(&iscsi_endpoint_class);
++#endif
+ 	class_unregister(&iscsi_transport_class);
+ }
+ 
+diff --git a/scsi_transport_iscsi.h b/scsi_transport_iscsi.h
+index b7652e3..3978551 100644
+--- a/scsi_transport_iscsi.h
++++ b/scsi_transport_iscsi.h
+@@ -28,6 +28,8 @@
+ #include <linux/mutex.h>
+ #include "iscsi_if.h"
+ 
++#include "open_iscsi_compat.h"
++
+ struct scsi_transport_template;
+ struct iscsi_transport;
+ struct iscsi_endpoint;
+@@ -175,7 +177,7 @@ struct iscsi_cls_session {
+ 
+ 	/* recovery fields */
+ 	int recovery_tmo;
+-	struct delayed_work recovery_work;
++	struct work_struct recovery_work;
+ 
+ 	unsigned int target_id;
+ 
diff --git a/kernel/Makefile b/kernel/Makefile
index 3dae671..139fd7b 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -49,6 +49,7 @@ all: kernel_check
 
 #some constants
 14to19_patch=2.6.14-19_compat.patch
+16suse_patch=2.6.16-suse.patch
 20to21_patch=2.6.20-21_compat.patch
 24_patch=2.6.24_compat.patch
 all_patches=14to21_patch 20to21_patch 24_patch
@@ -62,6 +63,13 @@ unpatch_code=$(shell test -e $(cur_patched) && echo do_unpatch_code )
 KSUBLEVEL = $(shell cat $(KSRC)/Makefile | awk -F= '/^SUBLEVEL =/ {print $$2}' | \
 		sed 's/^[ \t]*//;s/[ \t]*$$//')
 
+ifeq (16, ${KSUBLEVEL})
+KERNEL_SUSE = $(shell cat $(KBUILD_OUTPUT)/.config | sed -n '/^CONFIG_SUSE_KERNEL=y/p')
+ifneq (${KERNEL_SUSE}, undefined)
+KSUBLEVEL := 16-suse
+endif
+endif
+
 KERNEL_TARGET=linux_2_6_$(KSUBLEVEL)
 kernel_check: $(KERNEL_TARGET)
 
@@ -71,6 +79,8 @@ linux_2_6_15: has_14to19_patch
 
 linux_2_6_16: has_14to19_patch
 
+linux_2_6_16-suse: has_16suse_patch
+
 linux_2_6_17: has_14to19_patch
 
 linux_2_6_18: has_14to19_patch
@@ -108,6 +118,15 @@ has_14to19_patch: $(14to19_patch)
 	cp $(14to19_patch) $@
 	ln -s $@ $(cur_patched)
 
+has_16suse_patch: $(16suse_patch)
+	echo "Patching source code for linux-2.6.16 SLES10 SP2 ..."
+	if [ -e $(cur_patched) ]; then \
+		make -C . clean; \
+	fi
+	patch -p1 < $(16suse_patch)
+	cp $(16suse_patch) $@
+	ln -s $@ $(cur_patched)
+
 has_20to21_patch: $(20to21_patch)
 	echo "Patching source code for linux-2.6.20-21 ..."
 	if [ -e $(cur_patched) ]; then \
-- 
1.5.2.4

Places

File open-iscsi-add-sles10-compat of Package open-iscsi (Revision 2d2377867a17f6e7c2c13c6a6d22861f)

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