From: Christoph Hellwig <hch@lst.de>
To: achim_leubner@adaptec.com
Cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH](call for testers) gdth: add execute firmware command abstraction
Date: Tue, 7 Feb 2006 21:19:14 +0100 [thread overview]
Message-ID: <20060207201914.GA31890@lst.de> (raw)
First step to move gdth and thus one of the two remaining drivers off
the scsi_request interface:
Introduce a gdth_execute abstraction to send a firmware command to a
host. This gets rid of all the knowledge of scsi_requests or scsi_cmnd
structures everywhere in the drivers (and thus also the big ifdef mess).
As a next step gdth_execute can be switched to a different underlying
mechanism.
gdth.c | 335 ++++++++++++++++++++----------------------------------------
gdth_proc.c | 211 +++----------------------------------
gdth_proc.h | 17 ---
3 files changed, 138 insertions(+), 425 deletions(-)
Index: linux-2.6/drivers/scsi/gdth.c
===================================================================
--- linux-2.6.orig/drivers/scsi/gdth.c 2006-02-07 20:12:42.000000000 +0100
+++ linux-2.6/drivers/scsi/gdth.c 2006-02-07 21:12:08.000000000 +0100
@@ -682,6 +682,86 @@
}
}
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
+static void gdth_scsi_done(struct scsi_cmnd *scp)
+{
+ TRACE2(("gdth_scsi_done()\n"));
+
+ scp->request->rq_status = RQ_SCSI_DONE;
+ if (scp->request->waiting)
+ complete(scp->request->waiting);
+}
+
+int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
+ int timeout, u32 *info)
+{
+ struct scsi_request *scp = scsi_allocate_request(sdev, GFP_KERNEL);
+ unsigned bufflen = gdtcmd ? sizeof(gdth_cmd_str) : 0;
+ DECLARE_COMPLETION(wait);
+ int rval;
+
+ if (!scp)
+ return -ENOMEM;
+ scp->sr_cmd_len = 12;
+ scp->sr_use_sg = 0;
+ scp->sr_request->rq_status = RQ_SCSI_BUSY;
+ scp->sr_request->waiting = &wait;
+ scsi_do_req(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
+ wait_for_completion(&wait);
+
+ rval = scp->sr_command->SCp.Status;
+ if (info)
+ *info = scp->sr_command->SCp.Message;
+
+ scsi_release_request(scp);
+ return rval;
+}
+#else
+static void gdth_scsi_done(Scsi_Cmnd *scp)
+{
+ TRACE2(("gdth_scsi_done()\n"));
+
+ scp->request.rq_status = RQ_SCSI_DONE;
+ if (scp->request.waiting)
+ complete(scp->request.waiting);
+}
+
+int __gdth_execute(struct scsi_device *sdev, gdth_cmd_str *gdtcmd, char *cmnd,
+ int timeout, u32 *info)
+{
+ Scsi_Cmnd *scp = scsi_allocate_device(sdev, 1, FALSE);
+ unsigned bufflen = gdtcmd ? sizeof(gdth_cmd_str) : 0;
+ DECLARE_COMPLETION(wait);
+ int rval;
+
+ if (!scp)
+ return -ENOMEM;
+ scp->cmd_len = 12;
+ scp->use_sg = 0;
+ scp->request.rq_status = RQ_SCSI_BUSY;
+ scp->request.waiting = &wait;
+ scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
+ wait_for_completion(&wait);
+
+ rval = scp->SCp.Status;
+ if (info)
+ *info = scp->SCp.Message;
+
+ scsi_release_command(scp);
+ return rval;
+}
+#endif
+
+int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
+ int timeout, u32 *info)
+{
+ struct scsi_device *sdev = scsi_get_host_dev(shost);
+ int rval = __gdth_execute(sdev, gdtcmd, cmnd, timeout, info);
+
+ scsi_free_host_dev(sdev);
+ return rval;
+}
+
static void gdth_eval_mapping(ulong32 size, ulong32 *cyls, int *heads, int *secs)
{
*cyls = size /HEADS/SECS;
@@ -4921,11 +5001,7 @@
gdth_cmd_str cmd;
int hanum;
gdth_ha_str *ha;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
-#else
- Scsi_Cmnd *scp;
-#endif
+ int rval;
if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) ||
res.ionode >= gdth_ctr_count || res.number >= MAX_HDRIVES)
@@ -4942,25 +5018,11 @@
cmd.u.cache64.DeviceNo = res.number;
else
cmd.u.cache.DeviceNo = res.number;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- srp = scsi_allocate_request(ha->sdev, GFP_KERNEL);
- if (!srp)
- return -ENOMEM;
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
- gdth_do_req(srp, &cmd, cmnd, 30);
- res.status = (ushort)srp->sr_command->SCp.Status;
- scsi_release_request(srp);
-#else
- scp = scsi_allocate_device(ha->sdev, 1, FALSE);
- if (!scp)
- return -ENOMEM;
- scp->cmd_len = 12;
- scp->use_sg = 0;
- gdth_do_cmd(scp, &cmd, cmnd, 30);
- res.status = (ushort)scp->SCp.Status;
- scsi_release_command(scp);
-#endif
+
+ rval = __gdth_execute(ha->sdev, &cmd, cmnd, 30, NULL);
+ if (rval < 0)
+ return rval;
+ res.status = rval;
if (copy_to_user(arg, &res, sizeof(gdth_ioctl_reset)))
return -EFAULT;
@@ -4973,12 +5035,8 @@
char *buf = NULL;
ulong64 paddr;
int hanum;
- gdth_ha_str *ha;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
-#else
- Scsi_Cmnd *scp;
-#endif
+ gdth_ha_str *ha;
+ int rval;
if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general)) ||
gen.ionode >= gdth_ctr_count)
@@ -5070,27 +5128,10 @@
}
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- srp = scsi_allocate_request(ha->sdev, GFP_KERNEL);
- if (!srp)
- return -ENOMEM;
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
- gdth_do_req(srp, &gen.command, cmnd, gen.timeout);
- gen.status = srp->sr_command->SCp.Status;
- gen.info = srp->sr_command->SCp.Message;
- scsi_release_request(srp);
-#else
- scp = scsi_allocate_device(ha->sdev, 1, FALSE);
- if (!scp)
- return -ENOMEM;
- scp->cmd_len = 12;
- scp->use_sg = 0;
- gdth_do_cmd(scp, &gen.command, cmnd, gen.timeout);
- gen.status = scp->SCp.Status;
- gen.info = scp->SCp.Message;
- scsi_release_command(scp);
-#endif
+ rval = __gdth_execute(ha->sdev, &gen.command, cmnd, gen.timeout, &gen.info);
+ if (rval < 0)
+ return rval;
+ gen.status = rval;
if (copy_to_user(arg + sizeof(gdth_ioctl_general), buf,
gen.data_len + gen.sense_len)) {
@@ -5113,11 +5154,7 @@
gdth_ha_str *ha;
unchar i;
int hanum, rc = -ENOMEM;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
-#else
- Scsi_Cmnd *scp;
-#endif
+ u32 cluster_type = 0;
rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
@@ -5133,20 +5170,6 @@
ha = HADATA(gdth_ctr_tab[hanum]);
memset(cmd, 0, sizeof(gdth_cmd_str));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- srp = scsi_allocate_request(ha->sdev, GFP_KERNEL);
- if (!srp)
- goto free_fail;
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
-#else
- scp = scsi_allocate_device(ha->sdev, 1, FALSE);
- if (!scp)
- goto free_fail;
- scp->cmd_len = 12;
- scp->use_sg = 0;
-#endif
-
for (i = 0; i < MAX_HDRIVES; ++i) {
if (!ha->hdr[i].present) {
rsc->hdr_list[i].bus = 0xff;
@@ -5163,22 +5186,10 @@
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- if (srp->sr_command->SCp.Status == S_OK)
- rsc->hdr_list[i].cluster_type = srp->sr_command->SCp.Message;
-#else
- gdth_do_cmd(scp, cmd, cmnd, 30);
- if (scp->SCp.Status == S_OK)
- rsc->hdr_list[i].cluster_type = scp->SCp.Message;
-#endif
+ if (__gdth_execute(ha->sdev, cmd, cmnd, 30, &cluster_type) == S_OK)
+ rsc->hdr_list[i].cluster_type = cluster_type;
}
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scsi_release_request(srp);
-#else
- scsi_release_command(scp);
-#endif
if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
rc = -EFAULT;
@@ -5201,11 +5212,6 @@
int rc = -ENOMEM;
ulong flags;
gdth_ha_str *ha;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
-#else
- Scsi_Cmnd *scp;
-#endif
rsc = kmalloc(sizeof(*rsc), GFP_KERNEL);
cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
@@ -5221,20 +5227,6 @@
ha = HADATA(gdth_ctr_tab[hanum]);
memset(cmd, 0, sizeof(gdth_cmd_str));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- srp = scsi_allocate_request(ha->sdev, GFP_KERNEL);
- if (!srp)
- goto free_fail;
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
-#else
- scp = scsi_allocate_device(ha->sdev, 1, FALSE);
- if (!scp)
- goto free_fail;
- scp->cmd_len = 12;
- scp->use_sg = 0;
-#endif
-
if (rsc->flag == 0) {
/* old method: re-init. cache service */
cmd->Service = CACHESERVICE;
@@ -5245,19 +5237,8 @@
cmd->OpCode = GDT_INIT;
cmd->u.cache.DeviceNo = LINUX_OS;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- status = (ushort)srp->sr_command->SCp.Status;
- info = (ulong32)srp->sr_command->SCp.Message;
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- gdth_do_cmd(scp, cmd, cmnd, 30);
- status = (ushort)scp->SCp.Status;
- info = (ulong32)scp->SCp.Message;
-#else
- gdth_do_cmd(&scp, cmd, cmnd, 30);
- status = (ushort)scp.SCp.Status;
- info = (ulong32)scp.SCp.Message;
-#endif
+
+ status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
i = 0;
hdr_cnt = (status == S_OK ? (ushort)info : 0);
} else {
@@ -5272,15 +5253,9 @@
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- status = (ushort)srp->sr_command->SCp.Status;
- info = (ulong32)srp->sr_command->SCp.Message;
-#else
- gdth_do_cmd(scp, cmd, cmnd, 30);
- status = (ushort)scp->SCp.Status;
- info = (ulong32)scp->SCp.Message;
-#endif
+
+ status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
+
spin_lock_irqsave(&ha->smp_lock, flags);
rsc->hdr_list[i].bus = ha->virt_bus;
rsc->hdr_list[i].target = i;
@@ -5312,15 +5287,9 @@
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- status = (ushort)srp->sr_command->SCp.Status;
- info = (ulong32)srp->sr_command->SCp.Message;
-#else
- gdth_do_cmd(scp, cmd, cmnd, 30);
- status = (ushort)scp->SCp.Status;
- info = (ulong32)scp->SCp.Message;
-#endif
+
+ status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
+
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].devtype = (status == S_OK ? (ushort)info : 0);
spin_unlock_irqrestore(&ha->smp_lock, flags);
@@ -5331,15 +5300,9 @@
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- status = (ushort)srp->sr_command->SCp.Status;
- info = (ulong32)srp->sr_command->SCp.Message;
-#else
- gdth_do_cmd(scp, cmd, cmnd, 30);
- status = (ushort)scp->SCp.Status;
- info = (ulong32)scp->SCp.Message;
-#endif
+
+ status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
+
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].cluster_type =
((status == S_OK && !shared_access) ? (ushort)info : 0);
@@ -5352,24 +5315,13 @@
cmd->u.cache64.DeviceNo = i;
else
cmd->u.cache.DeviceNo = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, cmd, cmnd, 30);
- status = (ushort)srp->sr_command->SCp.Status;
- info = (ulong32)srp->sr_command->SCp.Message;
-#else
- gdth_do_cmd(scp, cmd, cmnd, 30);
- status = (ushort)scp->SCp.Status;
- info = (ulong32)scp->SCp.Message;
-#endif
+
+ status = __gdth_execute(ha->sdev, cmd, cmnd, 30, &info);
+
spin_lock_irqsave(&ha->smp_lock, flags);
ha->hdr[i].rw_attribs = (status == S_OK ? (ushort)info : 0);
spin_unlock_irqrestore(&ha->smp_lock, flags);
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scsi_release_request(srp);
-#else
- scsi_release_command(scp);
-#endif
if (copy_to_user(arg, rsc, sizeof(gdth_ioctl_rescan)))
rc = -EFAULT;
@@ -5557,34 +5509,12 @@
int i;
gdth_ha_str *ha;
gdth_cmd_str gdtcmd;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
-#else
- Scsi_Cmnd *scp;
-#endif
- struct scsi_device *sdev;
char cmnd[MAX_COMMAND_SIZE];
memset(cmnd, 0xff, MAX_COMMAND_SIZE);
TRACE2(("gdth_flush() hanum %d\n",hanum));
ha = HADATA(gdth_ctr_tab[hanum]);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
- srp = scsi_allocate_request(sdev, GFP_KERNEL);
- if (!srp)
- return;
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
-#else
- sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
- scp = scsi_allocate_device(sdev, 1, FALSE);
- if (!scp)
- return;
- scp->cmd_len = 12;
- scp->use_sg = 0;
-#endif
-
for (i = 0; i < MAX_HDRIVES; ++i) {
if (ha->hdr[i].present) {
gdtcmd.BoardNode = LOCALBOARD;
@@ -5600,20 +5530,10 @@
gdtcmd.u.cache.sg_canz = 0;
}
TRACE2(("gdth_flush(): flush ha %d drive %d\n", hanum, i));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(srp, &gdtcmd, cmnd, 30);
-#else
- gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
-#endif
+
+ gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 30, NULL);
}
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scsi_release_request(srp);
- scsi_free_host_dev(sdev);
-#else
- scsi_release_command(scp);
- scsi_free_host_dev(sdev);
-#endif
}
/* shutdown routine */
@@ -5622,13 +5542,6 @@
int hanum;
#ifndef __alpha__
gdth_cmd_str gdtcmd;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *srp;
- struct scsi_device *sdev;
-#else
- Scsi_Cmnd *scp;
- struct scsi_device *sdev;
-#endif
char cmnd[MAX_COMMAND_SIZE];
#endif
@@ -5647,31 +5560,7 @@
gdtcmd.Service = CACHESERVICE;
gdtcmd.OpCode = GDT_RESET;
TRACE2(("gdth_halt(): reset controller %d\n", hanum));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
- srp = scsi_allocate_request(sdev, GFP_KERNEL);
- if (!srp) {
- unregister_reboot_notifier(&gdth_notifier);
- return NOTIFY_OK;
- }
- srp->sr_cmd_len = 12;
- srp->sr_use_sg = 0;
- gdth_do_req(srp, &gdtcmd, cmnd, 10);
- scsi_release_request(srp);
- scsi_free_host_dev(sdev);
-#else
- sdev = scsi_get_host_dev(gdth_ctr_tab[hanum]);
- scp = scsi_allocate_device(sdev, 1, FALSE);
- if (!scp) {
- unregister_reboot_notifier(&gdth_notifier);
- return NOTIFY_OK;
- }
- scp->cmd_len = 12;
- scp->use_sg = 0;
- gdth_do_cmd(scp, &gdtcmd, cmnd, 10);
- scsi_release_command(scp);
- scsi_free_host_dev(sdev);
-#endif
+ gdth_execute(gdth_ctr_tab[hanum], &gdtcmd, cmnd, 10, NULL);
#endif
}
printk("Done.\n");
Index: linux-2.6/drivers/scsi/gdth_proc.c
===================================================================
--- linux-2.6.orig/drivers/scsi/gdth_proc.c 2005-12-27 18:30:30.000000000 +0100
+++ linux-2.6/drivers/scsi/gdth_proc.c 2006-02-07 21:12:43.000000000 +0100
@@ -52,53 +52,21 @@
int hanum,int busnum)
{
int ret_val = -EINVAL;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *scp;
- struct scsi_device *sdev;
-#else
- Scsi_Cmnd *scp;
- struct scsi_device *sdev;
-#endif
- TRACE2(("gdth_set_info() ha %d bus %d\n",hanum,busnum));
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- sdev = scsi_get_host_dev(host);
- scp = scsi_allocate_request(sdev, GFP_KERNEL);
- if (!scp)
- return -ENOMEM;
- scp->sr_cmd_len = 12;
- scp->sr_use_sg = 0;
-#else
- sdev = scsi_get_host_dev(host);
- scp = scsi_allocate_device(sdev, 1, FALSE);
- if (!scp)
- return -ENOMEM;
- scp->cmd_len = 12;
- scp->use_sg = 0;
-#endif
+ TRACE2(("gdth_set_info() ha %d bus %d\n",hanum,busnum));
if (length >= 4) {
if (strncmp(buffer,"gdth",4) == 0) {
buffer += 5;
length -= 5;
- ret_val = gdth_set_asc_info( buffer, length, hanum, scp );
+ ret_val = gdth_set_asc_info(host, buffer, length, hanum);
}
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scsi_release_request(scp);
- scsi_free_host_dev(sdev);
-#else
- scsi_release_command(scp);
- scsi_free_host_dev(sdev);
-#endif
+
return ret_val;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Request *scp)
-#else
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Cmnd *scp)
-#endif
+static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,int length,int hanum)
{
int orig_length, drive, wb_mode;
int i, found;
@@ -146,11 +114,8 @@
gdtcmd.u.cache.DeviceNo = i;
gdtcmd.u.cache.BlockNo = 1;
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, &gdtcmd, cmnd, 30);
-#else
- gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
-#endif
+
+ gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
}
}
if (!found)
@@ -202,11 +167,9 @@
gdtcmd.u.ioctl.subfunc = CACHE_CONFIG;
gdtcmd.u.ioctl.channel = INVALID_CHANNEL;
pcpar->write_back = wb_mode==1 ? 0:1;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, &gdtcmd, cmnd, 30);
-#else
- gdth_do_cmd(scp, &gdtcmd, cmnd, 30);
-#endif
+
+ gdth_execute(host, &gdtcmd, cmnd, 30, NULL);
+
gdth_ioctl_free(hanum, GDTH_SCRATCH, ha->pscratch, paddr);
printk("Done.\n");
return(orig_length);
@@ -230,13 +193,6 @@
gdth_cmd_str *gdtcmd;
gdth_evt_str *estr;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- Scsi_Request *scp;
- struct scsi_device *sdev;
-#else
- Scsi_Cmnd *scp;
- struct scsi_device *sdev;
-#endif
char hrec[161];
struct timeval tv;
@@ -260,29 +216,6 @@
TRACE2(("gdth_get_info() ha %d bus %d\n",hanum,busnum));
ha = HADATA(gdth_ctr_tab[hanum]);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- sdev = scsi_get_host_dev(host);
- scp = scsi_allocate_request(sdev, GFP_KERNEL);
- if (!scp)
- goto free_fail;
- scp->sr_cmd_len = 12;
- scp->sr_use_sg = 0;
-#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
- sdev = scsi_get_host_dev(host);
- scp = scsi_allocate_device(sdev, 1, FALSE);
- if (!scp)
- goto free_fail;
- scp->cmd_len = 12;
- scp->use_sg = 0;
-#else
- memset(&sdev,0,sizeof(struct scsi_device));
- memset(&scp, 0,sizeof(Scsi_Cmnd));
- sdev.host = scp.host = host;
- sdev.id = scp.target = sdev.host->this_id;
- scp.device = &sdev;
-#endif
-
-
/* request is i.e. "cat /proc/scsi/gdth/0" */
/* format: %-15s\t%-10s\t%-15s\t%s */
/* driver parameters */
@@ -386,16 +319,9 @@
sizeof(pds->list[0]);
if (pds->entries > cnt)
pds->entries = cnt;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status != S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status != S_OK)
-#endif
- {
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
pds->count = 0;
- }
/* other IOCTLs must fit into area GDTH_SCRATCH/4 */
for (j = 0; j < ha->raw[i].pdev_cnt; ++j) {
@@ -410,14 +336,8 @@
gdtcmd->u.ioctl.subfunc = SCSI_DR_INFO | L_CTRL_PATTERN;
gdtcmd->u.ioctl.channel =
ha->raw[i].address | ha->raw[i].id_list[j];
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status == S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status == S_OK)
-#endif
- {
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
strncpy(hrec,pdi->vendor,8);
strncpy(hrec+8,pdi->product,16);
strncpy(hrec+24,pdi->revision,4);
@@ -466,14 +386,9 @@
gdtcmd->u.ioctl.channel =
ha->raw[i].address | ha->raw[i].id_list[j];
pdef->sddc_type = 0x08;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status == S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status == S_OK)
-#endif
- {
+
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
size = sprintf(buffer+len,
" Grown Defects:\t%d\n",
pdef->sddc_cnt);
@@ -519,16 +434,8 @@
gdtcmd->u.ioctl.param_size = sizeof(gdth_cdrinfo_str);
gdtcmd->u.ioctl.subfunc = CACHE_DRV_INFO;
gdtcmd->u.ioctl.channel = drv_no;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status != S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status != S_OK)
-#endif
- {
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) != S_OK)
break;
- }
pcdi->ld_dtype >>= 16;
j++;
if (pcdi->ld_dtype > 2) {
@@ -629,14 +536,8 @@
gdtcmd->u.ioctl.param_size = sizeof(gdth_arrayinf_str);
gdtcmd->u.ioctl.subfunc = ARRAY_INFO | LA_CTRL_PATTERN;
gdtcmd->u.ioctl.channel = i;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status == S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status == S_OK)
-#endif
- {
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
if (pai->ai_state == 0)
strcpy(hrec, "idle");
else if (pai->ai_state == 2)
@@ -710,14 +611,8 @@
gdtcmd->u.ioctl.channel = i;
phg->entries = MAX_HDRIVES;
phg->offset = GDTOFFSOF(gdth_hget_str, entry[0]);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- gdth_do_req(scp, gdtcmd, cmnd, 30);
- if (scp->sr_command->SCp.Status != S_OK)
-#else
- gdth_do_cmd(scp, gdtcmd, cmnd, 30);
- if (scp->SCp.Status != S_OK)
-#endif
- {
+
+ if (gdth_execute(host, gdtcmd, cmnd, 30, NULL) == S_OK) {
ha->hdr[i].ldr_no = i;
ha->hdr[i].rw_attribs = 0;
ha->hdr[i].start_sec = 0;
@@ -791,13 +686,6 @@
}
stop_output:
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scsi_release_request(scp);
- scsi_free_host_dev(sdev);
-#else
- scsi_release_command(scp);
- scsi_free_host_dev(sdev);
-#endif
*start = buffer +(offset-begin);
len -= (offset-begin);
if (len > length)
@@ -813,63 +701,6 @@
}
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-static void gdth_do_req(Scsi_Request *scp, gdth_cmd_str *gdtcmd,
- char *cmnd, int timeout)
-{
- unsigned bufflen;
- DECLARE_COMPLETION(wait);
-
- TRACE2(("gdth_do_req()\n"));
- if (gdtcmd != NULL) {
- bufflen = sizeof(gdth_cmd_str);
- } else {
- bufflen = 0;
- }
- scp->sr_request->rq_status = RQ_SCSI_BUSY;
- scp->sr_request->waiting = &wait;
- scsi_do_req(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
- wait_for_completion(&wait);
-}
-
-#else
-static void gdth_do_cmd(Scsi_Cmnd *scp, gdth_cmd_str *gdtcmd,
- char *cmnd, int timeout)
-{
- unsigned bufflen;
- DECLARE_COMPLETION(wait);
-
- TRACE2(("gdth_do_cmd()\n"));
- if (gdtcmd != NULL) {
- scp->SCp.this_residual = IOCTL_PRI;
- bufflen = sizeof(gdth_cmd_str);
- } else {
- scp->SCp.this_residual = DEFAULT_PRI;
- bufflen = 0;
- }
-
- scp->request.rq_status = RQ_SCSI_BUSY;
- scp->request.waiting = &wait;
- scsi_do_cmd(scp, cmnd, gdtcmd, bufflen, gdth_scsi_done, timeout*HZ, 1);
- wait_for_completion(&wait);
-}
-#endif
-
-void gdth_scsi_done(Scsi_Cmnd *scp)
-{
- TRACE2(("gdth_scsi_done()\n"));
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
- scp->request->rq_status = RQ_SCSI_DONE;
- if (scp->request->waiting != NULL)
- complete(scp->request->waiting);
-#else
- scp->request.rq_status = RQ_SCSI_DONE;
- if (scp->request.waiting != NULL)
- complete(scp->request.waiting);
-#endif
-}
-
static char *gdth_ioctl_alloc(int hanum, int size, int scratch,
ulong64 *paddr)
{
Index: linux-2.6/drivers/scsi/gdth_proc.h
===================================================================
--- linux-2.6.orig/drivers/scsi/gdth_proc.h 2005-12-27 18:30:30.000000000 +0100
+++ linux-2.6/drivers/scsi/gdth_proc.h 2006-02-07 21:12:35.000000000 +0100
@@ -5,20 +5,15 @@
* $Id: gdth_proc.h,v 1.16 2004/01/14 13:09:01 achim Exp $
*/
+int gdth_execute(struct Scsi_Host *shost, gdth_cmd_str *gdtcmd, char *cmnd,
+ int timeout, u32 *info);
+
static int gdth_set_info(char *buffer,int length,struct Scsi_Host *host,
int hanum,int busnum);
static int gdth_get_info(char *buffer,char **start,off_t offset,int length,
struct Scsi_Host *host,int hanum,int busnum);
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
-static void gdth_do_req(Scsi_Request *srp, gdth_cmd_str *cmd,
- char *cmnd, int timeout);
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Request *scp);
-#else
-static void gdth_do_cmd(Scsi_Cmnd *scp, gdth_cmd_str *cmd,
- char *cmnd, int timeout);
-static int gdth_set_asc_info(char *buffer,int length,int hanum,Scsi_Cmnd *scp);
-#endif
+static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,
+ int length, int hanum);
static char *gdth_ioctl_alloc(int hanum, int size, int scratch,
ulong64 *paddr);
@@ -28,7 +23,5 @@
static void gdth_start_timeout(int hanum, int busnum, int id);
static int gdth_update_timeout(int hanum, Scsi_Cmnd *scp, int timeout);
-void gdth_scsi_done(Scsi_Cmnd *scp);
-
#endif
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