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Kernel
提交 c18b5aed 编写于 作者: M Moritz Muehlenhoff 提交者： Greg Kroah-Hartman
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Staging: hv: Remove compatibility ifdefry 

Signed-off-by: NMoritz Muehlenhoff <jmm@debian.org>
Cc: Hank Janssen <hjanssen@microsoft.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
上级 d4923090
隐藏空白更改
内联 并排
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drivers/staging/hv/NetVsc.c
浏览文件 @ c18b5aed
......@@ -20,8 +20,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/delay.h>
......
drivers/staging/hv/RndisFilter.c
浏览文件 @ c18b5aed
......@@ -21,8 +21,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/kernel.h>
#include <linux/mm.h>
#include "include/logging.h"
......
drivers/staging/hv/Sources.c
浏览文件 @ c18b5aed
......@@ -21,8 +21,6 @@
*
*/
#define KERNEL_2_6_27
#include "Vmbus.c"
#include "Hv.c"
#include "Connection.c"
......
drivers/staging/hv/StorVsc.c
浏览文件 @ c18b5aed
......@@ -21,8 +21,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
......
drivers/staging/hv/TODO
浏览文件 @ c18b5aed
TODO:
- fix checkpatch warnings/errors
- fix sparse issues
- remove compatibility layer
- fix HANDLE usage to be "real" pointers
- audit the vmbus to verify it is working properly with the
driver model
......
drivers/staging/hv/blkvsc_drv.c
浏览文件 @ c18b5aed
......@@ -20,8 +20,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
......@@ -186,14 +184,9 @@ int blkvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
drv_ctx->driver.name = storvsc_drv_obj->Base.name;
memcpy(&drv_ctx->class_id, &storvsc_drv_obj->Base.deviceType, sizeof(GUID));
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
drv_ctx->driver.probe = blkvsc_probe;
drv_ctx->driver.remove = blkvsc_remove;
#else
drv_ctx->probe = blkvsc_probe;
drv_ctx->remove = blkvsc_remove;
drv_ctx->shutdown = blkvsc_shutdown;
#endif
// The driver belongs to vmbus
vmbus_child_driver_register(drv_ctx);
......@@ -225,16 +218,6 @@ void blkvsc_drv_exit(void)
struct device *current_dev=NULL;
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#define driver_for_each_device(drv, start, data, fn) \
struct list_head *ptr, *n; \
list_for_each_safe(ptr, n, &((drv)->devices)) {\
struct device *curr_dev;\
curr_dev = list_entry(ptr, struct device, driver_list);\
fn(curr_dev, data);\
}
#endif // KERNEL_2_6_9
DPRINT_ENTER(BLKVSC_DRV);
while (1)
......@@ -313,15 +296,9 @@ static int blkvsc_probe(struct device *device)
ASSERT(sizeof(struct blkvsc_request_group) <= sizeof(struct blkvsc_request));
#ifdef KERNEL_2_6_27
blkdev->request_pool = kmem_cache_create(dev_name(&device_ctx->device),
sizeof(struct blkvsc_request) + storvsc_drv_obj->RequestExtSize, 0,
SLAB_HWCACHE_ALIGN, NULL);
#else
blkdev->request_pool = kmem_cache_create(device_ctx->device.bus_id,
sizeof(struct blkvsc_request) + storvsc_drv_obj->RequestExtSize, 0,
SLAB_HWCACHE_ALIGN, NULL, NULL);
#endif
if (!blkdev->request_pool)
{
ret = -ENOMEM;
......@@ -1170,7 +1147,6 @@ static void blkvsc_request_completion(STORVSC_REQUEST* request)
list_del(&comp_req->req_entry);
#ifdef KERNEL_2_6_27
if (!__blk_end_request(
comp_req->req,
(!comp_req->request.Status ? 0: -EIO),
......@@ -1180,17 +1156,6 @@ static void blkvsc_request_completion(STORVSC_REQUEST* request)
DPRINT_DBG(BLKVSC_DRV, "req %p COMPLETED\n", comp_req->req);
kmem_cache_free(blkdev->request_pool, comp_req->group);
}
#else
if (!end_that_request_first(comp_req->req, !comp_req->request.Status, (comp_req->sector_count * (blkdev->sector_size >> 9))))
{
//All the sectors have been xferred ie the request is done
DPRINT_DBG(BLKVSC_DRV, "req %p COMPLETED\n", comp_req->req);
end_that_request_last(comp_req->req, !comp_req->request.Status);
kmem_cache_free(blkdev->request_pool, comp_req->group);
}
#endif
kmem_cache_free(blkdev->request_pool, comp_req);
}
......@@ -1234,14 +1199,10 @@ static int blkvsc_cancel_pending_reqs(struct block_device_context *blkdev)
if (comp_req->req)
{
#ifdef KERNEL_2_6_27
ret = __blk_end_request(
comp_req->req,
(!comp_req->request.Status ? 0 : -EIO),
comp_req->sector_count * blkdev->sector_size);
#else
ret = end_that_request_first(comp_req->req, !comp_req->request.Status, (comp_req->sector_count * (blkdev->sector_size >> 9)));
#endif
ASSERT(ret != 0);
}
......@@ -1256,7 +1217,6 @@ static int blkvsc_cancel_pending_reqs(struct block_device_context *blkdev)
if (comp_req->req)
{
#ifdef KERNEL_2_6_27
if (!__blk_end_request(
pend_req->req,
-EIO,
......@@ -1266,17 +1226,6 @@ static int blkvsc_cancel_pending_reqs(struct block_device_context *blkdev)
DPRINT_DBG(BLKVSC_DRV, "blkvsc_cancel_pending_reqs() - req %p COMPLETED\n", pend_req->req);
kmem_cache_free(blkdev->request_pool, pend_req->group);
}
#else
if (!end_that_request_first(pend_req->req, 0, (pend_req->sector_count * (blkdev->sector_size >> 9))))
{
//All the sectors have been xferred ie the request is done
DPRINT_DBG(BLKVSC_DRV, "blkvsc_cancel_pending_reqs() - req %p COMPLETED\n", pend_req->req);
end_that_request_last(pend_req->req, 0);
kmem_cache_free(blkdev->request_pool, pend_req->group);
}
#endif
}
kmem_cache_free(blkdev->request_pool, pend_req);
......
drivers/staging/hv/include/vmbus.h
浏览文件 @ c18b5aed
......@@ -79,17 +79,6 @@ static inline struct driver_context *driver_to_driver_context(struct device_driv
return container_of(driver, struct driver_context, driver);
}
#if defined(KERNEL_2_6_5)
static inline void* kzalloc(int size, int flags)
{
void *p;
p = kmalloc(size, flags);
if (p) memset(p, 0, size);
return p;
}
#endif // KERNEL_2_6_5
//
// Vmbus interface
//
......
drivers/staging/hv/netvsc_drv.c
浏览文件 @ c18b5aed
......@@ -20,17 +20,11 @@
*
*/
#define KERNEL_2_6_27
#include <linux/init.h>
#include <linux/module.h>
#include <linux/highmem.h>
#include <linux/device.h>
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#include <asm/io.h>
#else
#include <linux/io.h>
#endif
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
......@@ -116,13 +110,8 @@ int netvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
drv_ctx->driver.name = net_drv_obj->Base.name;
memcpy(&drv_ctx->class_id, &net_drv_obj->Base.deviceType, sizeof(GUID));
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
drv_ctx->driver.probe = netvsc_probe;
drv_ctx->driver.remove = netvsc_remove;
#else
drv_ctx->probe = netvsc_probe;
drv_ctx->remove = netvsc_remove;
#endif
// The driver belongs to vmbus
vmbus_child_driver_register(drv_ctx);
......@@ -236,9 +225,6 @@ static int netvsc_probe(struct device *device)
net->netdev_ops = &device_ops;
#if !defined(KERNEL_2_6_27)
SET_MODULE_OWNER(net);
#endif
SET_NETDEV_DEV(net, device);
ret = register_netdev(net);
......@@ -485,10 +471,6 @@ static int netvsc_start_xmit (struct sk_buff *skb, struct net_device *net)
if (ret == 0)
{
#ifdef KERNEL_2_6_5
#define NETDEV_TX_OK 0
#define NETDEV_TX_BUSY 0
#endif
ret = NETDEV_TX_OK;
net_device_ctx->stats.tx_bytes += skb->len;
net_device_ctx->stats.tx_packets++;
......@@ -658,15 +640,6 @@ void netvsc_drv_exit(void)
struct driver_context *drv_ctx=&g_netvsc_drv.drv_ctx;
struct device *current_dev=NULL;
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#define driver_for_each_device(drv, start, data, fn) \
struct list_head *ptr, *n; \
list_for_each_safe(ptr, n, &((drv)->devices)) {\
struct device *curr_dev;\
curr_dev = list_entry(ptr, struct device, driver_list);\
fn(curr_dev, data);\
}
#endif
DPRINT_ENTER(NETVSC_DRV);
......
drivers/staging/hv/storvsc_drv.c
浏览文件 @ c18b5aed
......@@ -21,8 +21,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
......@@ -36,10 +34,7 @@
#include <scsi/scsi_eh.h>
#include <scsi/scsi_devinfo.h>
#ifdef KERNEL_2_6_5
#else
#include <scsi/scsi_dbg.h>
#endif
#include "include/logging.h"
#include "include/vmbus.h"
......@@ -56,11 +51,7 @@
struct host_device_context {
struct work_struct host_rescan_work; //must be 1st field
struct device_context *device_ctx; // point back to our device context
#ifdef KERNEL_2_6_27
struct kmem_cache *request_pool;
#else
kmem_cache_t *request_pool;
#endif
unsigned int port;
unsigned char path;
unsigned char target;
......@@ -90,11 +81,7 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
static int storvsc_device_alloc(struct scsi_device *);
static int storvsc_device_configure(struct scsi_device *);
static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd);
#ifdef KERNEL_2_6_27
static void storvsc_host_rescan_callback(struct work_struct *work);
#else
static void storvsc_host_rescan_callback(void* context);
#endif
static void storvsc_host_rescan(DEVICE_OBJECT* device_obj);
static int storvsc_remove(struct device *dev);
......@@ -171,13 +158,8 @@ int storvsc_drv_init(PFN_DRIVERINITIALIZE pfn_drv_init)
drv_ctx->driver.name = storvsc_drv_obj->Base.name;
memcpy(&drv_ctx->class_id, &storvsc_drv_obj->Base.deviceType, sizeof(GUID));
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
drv_ctx->driver.probe = storvsc_probe;
drv_ctx->driver.remove = storvsc_remove;
#else
drv_ctx->probe = storvsc_probe;
drv_ctx->remove = storvsc_remove;
#endif
// The driver belongs to vmbus
vmbus_child_driver_register(drv_ctx);
......@@ -209,16 +191,6 @@ void storvsc_drv_exit(void)
struct device *current_dev=NULL;
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#define driver_for_each_device(drv, start, data, fn) \
struct list_head *ptr, *n; \
list_for_each_safe(ptr, n, &((drv)->devices)) {\
struct device *curr_dev;\
curr_dev = list_entry(ptr, struct device, driver_list);\
fn(curr_dev, data);\
}
#endif // KERNEL_2_6_9
DPRINT_ENTER(STORVSC_DRV);
while (1)
......@@ -287,28 +259,14 @@ static int storvsc_probe(struct device *device)
host_device_ctx->port = host->host_no;
host_device_ctx->device_ctx = device_ctx;
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#elif defined(KERNEL_2_6_27)
INIT_WORK(&host_device_ctx->host_rescan_work, storvsc_host_rescan_callback);
#else
INIT_WORK(&host_device_ctx->host_rescan_work, storvsc_host_rescan_callback, device_obj);
#endif
#if defined(KERNEL_2_6_27)
host_device_ctx->request_pool =
kmem_cache_create
(dev_name(&device_ctx->device),
sizeof(struct storvsc_cmd_request) + storvsc_drv_obj->RequestExtSize,
0,
SLAB_HWCACHE_ALIGN, NULL);
#else
host_device_ctx->request_pool =
kmem_cache_create
(device_ctx->device.bus_id,
sizeof(struct storvsc_cmd_request) + storvsc_drv_obj->RequestExtSize,
0,
SLAB_HWCACHE_ALIGN, NULL, NULL);
#endif
if (!host_device_ctx->request_pool)
{
......@@ -430,10 +388,7 @@ static void storvsc_commmand_completion(STORVSC_REQUEST* request)
struct scsi_cmnd *scmnd = cmd_request->cmd;
struct host_device_context *host_device_ctx = (struct host_device_context*)scmnd->device->host->hostdata;
void (*scsi_done_fn)(struct scsi_cmnd *);
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#else
struct scsi_sense_hdr sense_hdr;
#endif
ASSERT(request == &cmd_request->request);
ASSERT((unsigned long)scmnd->host_scribble == (unsigned long)cmd_request);
......@@ -447,11 +402,7 @@ static void storvsc_commmand_completion(STORVSC_REQUEST* request)
//printk("copy_from_bounce_buffer\n");
// FIXME: We can optimize on writes by just skipping this
#ifdef KERNEL_2_6_27
copy_from_bounce_buffer(scsi_sglist(scmnd), cmd_request->bounce_sgl, scsi_sg_count(scmnd));
#else
copy_from_bounce_buffer(scmnd->request_buffer, cmd_request->bounce_sgl, scmnd->use_sg);
#endif
destroy_bounce_buffer(cmd_request->bounce_sgl, cmd_request->bounce_sgl_count);
}
......@@ -459,22 +410,14 @@ static void storvsc_commmand_completion(STORVSC_REQUEST* request)
if (scmnd->result)
{
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
DPRINT_INFO(STORVSC_DRV, "scsi result nonzero - %d", scmnd->result);
#else
if (scsi_normalize_sense(scmnd->sense_buffer, request->SenseBufferSize, &sense_hdr))
{
scsi_print_sense_hdr("storvsc", &sense_hdr);
}
#endif
}
ASSERT(request->BytesXfer <= request->DataBuffer.Length);
#ifdef KERNEL_2_6_27
scsi_set_resid(scmnd, request->DataBuffer.Length - request->BytesXfer);
#else
scmnd->resid = request->DataBuffer.Length - request->BytesXfer;
#endif
scsi_done_fn = scmnd->scsi_done;
......@@ -543,13 +486,7 @@ static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl, unsigne
{
goto cleanup;
}
#ifdef KERNEL_2_6_27
sg_set_page(&bounce_sgl[i], page_buf, 0, 0);
#else
bounce_sgl[i].page = page_buf;
bounce_sgl[i].offset = 0;
bounce_sgl[i].length = 0;
#endif
}
return bounce_sgl;
......@@ -566,11 +503,7 @@ static void destroy_bounce_buffer(struct scatterlist *sgl, unsigned int sg_count
for (i=0; i<sg_count; i++)
{
#ifdef KERNEL_2_6_27
if ((page_buf = sg_page((&sgl[i]))) != NULL)
#else
if ((page_buf = sgl[i].page) != NULL)
#endif
{
__free_page(page_buf);
......@@ -595,11 +528,7 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, struct s
for (i=0; i<orig_sgl_count; i++)
{
#ifdef KERNEL_2_6_27
src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])), KM_IRQ0) + orig_sgl[i].offset;
#else
src_addr = (unsigned long)kmap_atomic(orig_sgl[i].page, KM_IRQ0) + orig_sgl[i].offset;
#endif
src = src_addr;
srclen = orig_sgl[i].length;
......@@ -610,11 +539,7 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, struct s
if (j == 0)
{
#ifdef KERNEL_2_6_27
bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
#else
bounce_addr = (unsigned long)kmap_atomic(bounce_sgl[j].page, KM_IRQ0);
#endif
}
while (srclen)
......@@ -639,11 +564,7 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, struct s
// if we need to use another bounce buffer
if (srclen || i != orig_sgl_count -1)
{
#ifdef KERNEL_2_6_27
bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
#else
bounce_addr = (unsigned long)kmap_atomic(bounce_sgl[j].page, KM_IRQ0);
#endif
}
}
else if (srclen == 0 && i == orig_sgl_count -1) // // unmap the last bounce that is < PAGE_SIZE
......@@ -675,22 +596,14 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, struct
for (i=0; i<orig_sgl_count; i++)
{
#ifdef KERNEL_2_6_27
dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])), KM_IRQ0) + orig_sgl[i].offset;
#else
dest_addr = (unsigned long)kmap_atomic(orig_sgl[i].page, KM_IRQ0) + orig_sgl[i].offset;
#endif
dest = dest_addr;
destlen = orig_sgl[i].length;
ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE);
if (j == 0)
{
#ifdef KERNEL_2_6_27
bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
#else
bounce_addr = (unsigned long)kmap_atomic(bounce_sgl[j].page, KM_IRQ0);
#endif
}
while (destlen)
......@@ -714,11 +627,7 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, struct
// if we need to use another bounce buffer
if (destlen || i != orig_sgl_count -1)
{
#ifdef KERNEL_2_6_27
bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
#else
bounce_addr = (unsigned long)kmap_atomic(bounce_sgl[j].page, KM_IRQ0);
#endif
}
}
else if (destlen == 0 && i == orig_sgl_count -1) // unmap the last bounce that is < PAGE_SIZE
......@@ -760,7 +669,6 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
DPRINT_ENTER(STORVSC_DRV);
#ifdef KERNEL_2_6_27
DPRINT_DBG(STORVSC_DRV, "scmnd %p dir %d, use_sg %d buf %p len %d queue depth %d tagged %d",
scmnd,
scmnd->sc_data_direction,
......@@ -769,16 +677,6 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
scsi_bufflen(scmnd),
scmnd->device->queue_depth,
scmnd->device->tagged_supported);
#else
DPRINT_DBG(STORVSC_DRV, "scmnd %p dir %d, use_sg %d buf %p len %d queue depth %d tagged %d",
scmnd,
scmnd->sc_data_direction,
scmnd->use_sg,
scmnd->request_buffer,
scmnd->request_bufflen,
scmnd->device->queue_depth,
scmnd->device->tagged_supported);
#endif
// If retrying, no need to prep the cmd
if (scmnd->host_scribble)
......@@ -850,35 +748,16 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
request->SenseBufferSize = SCSI_SENSE_BUFFERSIZE;
#ifdef KERNEL_2_6_27
request->DataBuffer.Length = scsi_bufflen(scmnd);
if (scsi_sg_count(scmnd))
#else
request->DataBuffer.Length = scmnd->request_bufflen;
if (scmnd->use_sg)
#endif
{
#ifdef KERNEL_2_6_27
sgl = (struct scatterlist*)scsi_sglist(scmnd);
#else
sgl = (struct scatterlist*)(scmnd->request_buffer);
#endif
// check if we need to bounce the sgl
#ifdef KERNEL_2_6_27
if (do_bounce_buffer(sgl, scsi_sg_count(scmnd)) != -1)
#else
if (do_bounce_buffer(sgl, scmnd->use_sg) != -1)
#endif
{
DPRINT_INFO(STORVSC_DRV, "need to bounce buffer for this scmnd %p", scmnd);
#ifdef KERNEL_2_6_27
cmd_request->bounce_sgl = create_bounce_buffer(sgl, scsi_sg_count(scmnd), scsi_bufflen(scmnd));
#else
cmd_request->bounce_sgl = create_bounce_buffer(
sgl,
scmnd->use_sg, scmnd->request_bufflen);
#endif
if (!cmd_request->bounce_sgl)
{
DPRINT_ERR(STORVSC_DRV, "unable to create bounce buffer for this scmnd %p", scmnd);
......@@ -890,42 +769,25 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
return SCSI_MLQUEUE_HOST_BUSY;
}
#ifdef KERNEL_2_6_27
cmd_request->bounce_sgl_count = ALIGN_UP(scsi_bufflen(scmnd), PAGE_SIZE) >> PAGE_SHIFT;
#else
cmd_request->bounce_sgl_count = ALIGN_UP(scmnd->request_bufflen, PAGE_SIZE) >> PAGE_SHIFT;
#endif
//printk("bouncing buffer allocated %p original buffer %p\n", bounce_sgl, sgl);
//printk("copy_to_bounce_buffer\n");
// FIXME: We can optimize on reads by just skipping this
#ifdef KERNEL_2_6_27
copy_to_bounce_buffer(sgl, cmd_request->bounce_sgl, scsi_sg_count(scmnd));
#else
copy_to_bounce_buffer(sgl, cmd_request->bounce_sgl, scmnd->use_sg);
#endif
sgl = cmd_request->bounce_sgl;
}
request->DataBuffer.Offset = sgl[0].offset;
#ifdef KERNEL_2_6_27
for (i = 0; i < scsi_sg_count(scmnd); i++ )
#else
for (i = 0; i < scmnd->use_sg; i++ )
#endif
{
DPRINT_DBG(STORVSC_DRV, "sgl[%d] len %d offset %d \n", i, sgl[i].length, sgl[i].offset);
#ifdef KERNEL_2_6_27
request->DataBuffer.PfnArray[i] = page_to_pfn(sg_page((&sgl[i])));
#else
request->DataBuffer.PfnArray[i] = page_to_pfn(sgl[i].page);
#endif
}
}
#ifdef KERNEL_2_6_27
else if (scsi_sglist(scmnd))
{
ASSERT(scsi_bufflen(scmnd) <= PAGE_SIZE);
......@@ -936,18 +798,6 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
{
ASSERT(scsi_bufflen(scmnd) == 0);
}
#else
else if (scmnd->request_buffer)
{
ASSERT(scmnd->request_bufflen <= PAGE_SIZE);
request->DataBuffer.Offset = virt_to_phys(scmnd->request_buffer) & (PAGE_SIZE-1);
request->DataBuffer.PfnArray[0] = virt_to_phys(scmnd->request_buffer) >> PAGE_SHIFT;
}
else
{
ASSERT(scmnd->request_bufflen == 0);
}
#endif
retry_request:
......@@ -960,14 +810,7 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
if (cmd_request->bounce_sgl_count)
{
// FIXME: We can optimize on writes by just skipping this
#ifdef KERNEL_2_6_27
copy_from_bounce_buffer(scsi_sglist(scmnd), cmd_request->bounce_sgl, scsi_sg_count(scmnd));
#else
copy_from_bounce_buffer(
scmnd->request_buffer,
cmd_request->bounce_sgl,
scmnd->use_sg);
#endif
destroy_bounce_buffer(cmd_request->bounce_sgl, cmd_request->bounce_sgl_count);
}
......@@ -984,50 +827,10 @@ static int storvsc_queuecommand(struct scsi_cmnd *scmnd, void (*done)(struct scs
return ret;
}
#ifdef KERNEL_2_6_27
static int storvsc_merge_bvec(struct request_queue *q, struct bvec_merge_data *bmd, struct bio_vec *bvec)
{
return bvec->bv_len; //checking done by caller.
}
#else
static int storvsc_merge_bvec(struct request_queue *q, struct bio *bio, struct bio_vec *bvec)
{
// Check if we are adding a new bvec
if (bio->bi_vcnt > 0)
{
//printk("storvsc_merge_bvec() - cnt %u offset %u len %u\n", bio->bi_vcnt, bvec->bv_offset, bvec->bv_len);
struct bio_vec *prev = &bio->bi_io_vec[bio->bi_vcnt - 1];
if (bvec == prev)
return bvec->bv_len; // success
// Adding new bvec. Make sure the prev one is a complete page
if (prev->bv_len == PAGE_SIZE && prev->bv_offset == 0)
{
return bvec->bv_len; // success
}
else
{
// Dont reject if the new bvec starts off from the prev one since
// they will be merge into 1 bvec or blk_rq_map_sg() will merge them into 1 sg element
if ((bvec->bv_page == prev->bv_page) &&
(bvec->bv_offset == prev->bv_offset + prev->bv_len))
{
return bvec->bv_len; // success
}
else
{
DPRINT_INFO(STORVSC_DRV, "detected holes in bio request (%p) - cnt %u offset %u len %u", bio, bio->bi_vcnt, bvec->bv_offset, bvec->bv_len);
return 0; // dont add the bvec to this bio since we dont allow holes in the middle of a multi-pages bio
}
}
}
return bvec->bv_len; // success
}
#endif
/*++
......@@ -1038,12 +841,9 @@ Desc: Configure the specified scsi device
--*/
static int storvsc_device_alloc(struct scsi_device *sdevice)
{
#ifdef KERNEL_2_6_5
#else
DPRINT_DBG(STORVSC_DRV, "sdev (%p) - setting device flag to %d", sdevice, BLIST_SPARSELUN);
// This enables luns to be located sparsely. Otherwise, we may not discovered them.
sdevice->sdev_bflags |= BLIST_SPARSELUN | BLIST_LARGELUN;
#endif
return 0;
}
......@@ -1110,20 +910,10 @@ Name: storvsc_host_rescan
Desc: Rescan the scsi HBA
--*/
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#else
#ifdef KERNEL_2_6_27
static void storvsc_host_rescan_callback(struct work_struct *work)
{
DEVICE_OBJECT* device_obj =
&((struct host_device_context*)work)->device_ctx->device_obj;
#else
static void storvsc_host_rescan_callback(void* context)
{
DEVICE_OBJECT* device_obj = (DEVICE_OBJECT*)context;
#endif
struct device_context* device_ctx = to_device_context(device_obj);
struct Scsi_Host *host = dev_get_drvdata(&device_ctx->device);
struct scsi_device *sdev;
......@@ -1229,10 +1019,7 @@ static int storvsc_report_luns(struct scsi_device *sdev, unsigned int luns[], un
unsigned int num_luns;
int result;
unsigned char *data;
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#else
struct scsi_sense_hdr sshdr;
#endif
unsigned char cmd[16]={0};
unsigned int report_len = 8*(STORVSC_MAX_LUNS_PER_TARGET+1); // Add 1 to cover the report_lun header
unsigned long long *report_luns;
......@@ -1288,7 +1075,6 @@ static int storvsc_report_luns(struct scsi_device *sdev, unsigned int luns[], un
kfree(report_luns);
return 0;
}
#endif // KERNEL_2_6_9
static void storvsc_host_rescan(DEVICE_OBJECT* device_obj)
{
......@@ -1297,9 +1083,6 @@ static void storvsc_host_rescan(DEVICE_OBJECT* device_obj)
struct host_device_context *host_device_ctx;
DPRINT_ENTER(STORVSC_DRV);
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
DPRINT_ERR(STORVSC_DRV, "rescan not supported on 2.6.9 kernels!! You will need to reboot if you have added or removed the scsi lun device");
#else
host_device_ctx = (struct host_device_context*)host->hostdata;
......@@ -1308,7 +1091,6 @@ static void storvsc_host_rescan(DEVICE_OBJECT* device_obj)
// We need to queue this since the scanning may block and the caller may be in an intr context
//scsi_queue_work(host, &host_device_ctx->host_rescan_work);
schedule_work(&host_device_ctx->host_rescan_work);
#endif // KERNEL_2_6_9
DPRINT_EXIT(STORVSC_DRV);
}
......
drivers/staging/hv/vmbus_drv.c
浏览文件 @ c18b5aed
......@@ -21,7 +21,6 @@
*
*/
#define KERNEL_2_6_27
#include <linux/init.h>
#include <linux/module.h>
......@@ -39,9 +38,7 @@
// FIXME! We need to do this dynamically for PIC and APIC system
#define VMBUS_IRQ 0x5
#ifdef KERNEL_2_6_27
#define VMBUS_IRQ_VECTOR IRQ5_VECTOR
#endif
//
// Data types
//
......@@ -69,20 +66,11 @@ static int vmbus_match(struct device *device, struct device_driver *driver);
static int vmbus_probe(struct device *device);
static int vmbus_remove(struct device *device);
static void vmbus_shutdown(struct device *device);
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#elif defined(KERNEL_2_6_27)
static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env);
#else
static int vmbus_uevent(struct device *device, char **envp, int num_envp, char *buffer, int buffer_size);
#endif
static void vmbus_msg_dpc(unsigned long data);
static void vmbus_event_dpc(unsigned long data);
#ifdef KERNEL_2_6_27
static irqreturn_t vmbus_isr(int irq, void* dev_id);
#else
static int vmbus_isr(int irq, void* dev_id, struct pt_regs *regs);
#endif
static void vmbus_device_release(struct device *device);
static void vmbus_bus_release(struct device *device);
......@@ -141,8 +129,6 @@ static ctl_table vmus_root_ctl_table[] = {
{ }
};
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#else
//
// Set up per device attributes in /sys/bus/vmbus/devices/<bus device>
//
......@@ -174,20 +160,16 @@ static struct device_attribute vmbus_device_attrs[] = {
__ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
__ATTR_NULL
};
#endif
// The one and only one
static struct vmbus_driver_context g_vmbus_drv={
.bus.name = "vmbus",
.bus.match = vmbus_match,
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#else
.bus.shutdown = vmbus_shutdown,
.bus.remove = vmbus_remove,
.bus.probe = vmbus_probe,
.bus.uevent = vmbus_uevent,
.bus.dev_attrs = vmbus_device_attrs,
#endif
};
//
......@@ -401,19 +383,11 @@ int vmbus_bus_init(PFN_DRIVERINITIALIZE pfn_drv_init)
bus_register(&vmbus_drv_ctx->bus);
// Get the interrupt resource
#ifdef KERNEL_2_6_27
ret = request_irq(vmbus_irq,
vmbus_isr,
IRQF_SAMPLE_RANDOM,
vmbus_drv_obj->Base.name,
NULL);
#else
ret = request_irq(vmbus_irq,
vmbus_isr,
SA_SAMPLE_RANDOM,
vmbus_drv_obj->Base.name,
NULL);
#endif
if (ret != 0)
{
......@@ -424,15 +398,7 @@ int vmbus_bus_init(PFN_DRIVERINITIALIZE pfn_drv_init)
ret = -1;
goto cleanup;
}
#ifdef KERNEL_2_6_27
vector = VMBUS_IRQ_VECTOR;
#else
#if X2V_LINUX
vector = vmbus_irq + FIRST_DEVICE_VECTOR - 2;
#else
vector = vmbus_irq + FIRST_EXTERNAL_VECTOR;
#endif
#endif
DPRINT_INFO(VMBUS_DRV, "irq 0x%x vector 0x%x", vmbus_irq, vector);
......@@ -738,8 +704,6 @@ Desc: This routine is invoked when a device is added or removed on the vmbus to
userspace. The udev will then look at its rule and the uevent generated here to load the appropriate driver
--*/
#if defined(KERNEL_2_6_5) || defined(KERNEL_2_6_9)
#elif defined(KERNEL_2_6_27)
static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env)
{
struct device_context *device_ctx = device_to_device_context(device);
......@@ -791,57 +755,6 @@ static int vmbus_uevent(struct device *device, struct kobj_uevent_env *env)
return 0;
}
#else
static int vmbus_uevent(struct device *device, char **envp, int num_envp, char *buffer, int buffer_size)
{
struct device_context *device_ctx = device_to_device_context(device);
int i=0;
int len=0;
int ret;
DPRINT_ENTER(VMBUS_DRV);
DPRINT_INFO(VMBUS_DRV, "generating uevent - VMBUS_DEVICE_CLASS_GUID={%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x%02x%02x}",
device_ctx->class_id.Data[3], device_ctx->class_id.Data[2], device_ctx->class_id.Data[1], device_ctx->class_id.Data[0],
device_ctx->class_id.Data[5], device_ctx->class_id.Data[4],
device_ctx->class_id.Data[7], device_ctx->class_id.Data[6],
device_ctx->class_id.Data[8], device_ctx->class_id.Data[9], device_ctx->class_id.Data[10], device_ctx->class_id.Data[11],
device_ctx->class_id.Data[12], device_ctx->class_id.Data[13], device_ctx->class_id.Data[14], device_ctx->class_id.Data[15]);
ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
"VMBUS_DEVICE_CLASS_GUID={%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x%02x%02x}",
device_ctx->class_id.Data[3], device_ctx->class_id.Data[2], device_ctx->class_id.Data[1], device_ctx->class_id.Data[0],
device_ctx->class_id.Data[5], device_ctx->class_id.Data[4],
device_ctx->class_id.Data[7], device_ctx->class_id.Data[6],
device_ctx->class_id.Data[8], device_ctx->class_id.Data[9], device_ctx->class_id.Data[10], device_ctx->class_id.Data[11],
device_ctx->class_id.Data[12], device_ctx->class_id.Data[13], device_ctx->class_id.Data[14], device_ctx->class_id.Data[15]);
if (ret)
{
return ret;
}
ret = add_uevent_var(envp, num_envp, &i, buffer, buffer_size, &len,
"VMBUS_DEVICE_DEVICE_GUID={%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x%02x%02x}",
device_ctx->device_id.Data[3], device_ctx->device_id.Data[2], device_ctx->device_id.Data[1], device_ctx->device_id.Data[0],
device_ctx->device_id.Data[5], device_ctx->device_id.Data[4],
device_ctx->device_id.Data[7], device_ctx->device_id.Data[6],
device_ctx->device_id.Data[8], device_ctx->device_id.Data[9], device_ctx->device_id.Data[10], device_ctx->device_id.Data[11],
device_ctx->device_id.Data[12], device_ctx->device_id.Data[13], device_ctx->device_id.Data[14], device_ctx->device_id.Data[15]);
if (ret)
{
return ret;
}
envp[i] = NULL;
DPRINT_EXIT(VMBUS_DRV);
return 0;
}
#endif
/*++
Name: vmbus_match()
......@@ -884,11 +797,7 @@ Desc: Callback when a driver probe failed in vmbus_probe(). We need a callback b
invoked inside device_register() i.e. we cannot call device_unregister() inside
device_register()
--*/
#ifdef KERNEL_2_6_27
static void vmbus_probe_failed_cb(struct work_struct *context)
#else
static void vmbus_probe_failed_cb(void* context)
#endif
{
struct device_context *device_ctx = (struct device_context*)context;
......@@ -927,11 +836,7 @@ static int vmbus_probe(struct device *child_device)
{
DPRINT_ERR(VMBUS_DRV, "probe() failed for device %s (%p) on driver %s (%d)...", dev_name(child_device), child_device, child_device->driver->name, ret);
#ifdef KERNEL_2_6_27
INIT_WORK(&device_ctx->probe_failed_work_item, vmbus_probe_failed_cb);
#else
INIT_WORK(&device_ctx->probe_failed_work_item, vmbus_probe_failed_cb, device_ctx);
#endif
schedule_work(&device_ctx->probe_failed_work_item);
}
}
......@@ -1119,11 +1024,7 @@ Name: vmbus_msg_dpc()
Desc: ISR routine
--*/
#ifdef KERNEL_2_6_27
static irqreturn_t vmbus_isr(int irq, void* dev_id)
#else
static int vmbus_isr(int irq, void* dev_id, struct pt_regs *regs)
#endif
{
int ret=0;
VMBUS_DRIVER_OBJECT* vmbus_driver_obj = &g_vmbus_drv.drv_obj;
......@@ -1177,16 +1078,7 @@ static int __init vmbus_init(void)
DPRINT_INFO(VMBUS_DRV,
"Vmbus initializing.... current log level 0x%x (%x,%x)",
vmbus_loglevel, HIWORD(vmbus_loglevel), LOWORD(vmbus_loglevel));
#ifdef KERNEL_2_6_27
//Todo: it is used for loglevel, to be ported to new kernel.
#else
vmbus_ctl_table_hdr = register_sysctl_table(vmus_root_ctl_table, 0);
if (!vmbus_ctl_table_hdr)
{
DPRINT_EXIT(VMBUS_DRV);
return -ENOMEM;
}
#endif
ret = vmbus_bus_init(VmbusInitialize);
......@@ -1208,21 +1100,14 @@ static void __exit vmbus_exit(void)
DPRINT_ENTER(VMBUS_DRV);
vmbus_bus_exit();
#ifdef KERNEL_2_6_27
//Todo: it is used for loglevel, to be ported to new kernel.
#else
unregister_sysctl_table(vmbus_ctl_table_hdr);
#endif
DPRINT_EXIT(VMBUS_DRV);
return;
}
#if defined(KERNEL_2_6_5)
#else
module_param(vmbus_irq, int, S_IRUGO);
module_param(vmbus_loglevel, int, S_IRUGO);
#endif
module_init(vmbus_init);
module_exit(vmbus_exit);
......
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