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path: root/drivers/scsi/cxlflash/superpipe.c
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Diffstat (limited to 'drivers/scsi/cxlflash/superpipe.c')
-rw-r--r--drivers/scsi/cxlflash/superpipe.c64
1 files changed, 31 insertions, 33 deletions
diff --git a/drivers/scsi/cxlflash/superpipe.c b/drivers/scsi/cxlflash/superpipe.c
index 170fff5aeff6..2fe79df5c73c 100644
--- a/drivers/scsi/cxlflash/superpipe.c
+++ b/drivers/scsi/cxlflash/superpipe.c
@@ -810,20 +810,22 @@ err:
* init_context() - initializes a previously allocated context
* @ctxi: Previously allocated context
* @cfg: Internal structure associated with the host.
- * @ctx: Previously obtained CXL context reference.
+ * @ctx: Previously obtained context cookie.
* @ctxid: Previously obtained process element associated with CXL context.
* @file: Previously obtained file associated with CXL context.
* @perms: User-specified permissions.
+ * @irqs: User-specified number of interrupts.
*/
static void init_context(struct ctx_info *ctxi, struct cxlflash_cfg *cfg,
- struct cxl_context *ctx, int ctxid, struct file *file,
- u32 perms)
+ void *ctx, int ctxid, struct file *file, u32 perms,
+ u64 irqs)
{
struct afu *afu = cfg->afu;
ctxi->rht_perms = perms;
ctxi->ctrl_map = &afu->afu_map->ctrls[ctxid].ctrl;
ctxi->ctxid = ENCODE_CTXID(ctxi, ctxid);
+ ctxi->irqs = irqs;
ctxi->pid = task_tgid_nr(current); /* tgid = pid */
ctxi->ctx = ctx;
ctxi->cfg = cfg;
@@ -976,9 +978,9 @@ static int cxlflash_disk_detach(struct scsi_device *sdev,
*/
static int cxlflash_cxl_release(struct inode *inode, struct file *file)
{
- struct cxl_context *ctx = cxl_fops_get_context(file);
struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
cxl_fops);
+ void *ctx = cfg->ops->fops_get_context(file);
struct device *dev = &cfg->dev->dev;
struct ctx_info *ctxi = NULL;
struct dk_cxlflash_detach detach = { { 0 }, 0 };
@@ -986,7 +988,7 @@ static int cxlflash_cxl_release(struct inode *inode, struct file *file)
enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
int ctxid;
- ctxid = cxl_process_element(ctx);
+ ctxid = cfg->ops->process_element(ctx);
if (unlikely(ctxid < 0)) {
dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
__func__, ctx, ctxid);
@@ -1014,7 +1016,7 @@ static int cxlflash_cxl_release(struct inode *inode, struct file *file)
list_for_each_entry_safe(lun_access, t, &ctxi->luns, list)
_cxlflash_disk_detach(lun_access->sdev, ctxi, &detach);
out_release:
- cxl_fd_release(inode, file);
+ cfg->ops->fd_release(inode, file);
out:
dev_dbg(dev, "%s: returning\n", __func__);
return 0;
@@ -1089,9 +1091,9 @@ static int cxlflash_mmap_fault(struct vm_fault *vmf)
{
struct vm_area_struct *vma = vmf->vma;
struct file *file = vma->vm_file;
- struct cxl_context *ctx = cxl_fops_get_context(file);
struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
cxl_fops);
+ void *ctx = cfg->ops->fops_get_context(file);
struct device *dev = &cfg->dev->dev;
struct ctx_info *ctxi = NULL;
struct page *err_page = NULL;
@@ -1099,7 +1101,7 @@ static int cxlflash_mmap_fault(struct vm_fault *vmf)
int rc = 0;
int ctxid;
- ctxid = cxl_process_element(ctx);
+ ctxid = cfg->ops->process_element(ctx);
if (unlikely(ctxid < 0)) {
dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
__func__, ctx, ctxid);
@@ -1162,16 +1164,16 @@ static const struct vm_operations_struct cxlflash_mmap_vmops = {
*/
static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma)
{
- struct cxl_context *ctx = cxl_fops_get_context(file);
struct cxlflash_cfg *cfg = container_of(file->f_op, struct cxlflash_cfg,
cxl_fops);
+ void *ctx = cfg->ops->fops_get_context(file);
struct device *dev = &cfg->dev->dev;
struct ctx_info *ctxi = NULL;
enum ctx_ctrl ctrl = CTX_CTRL_ERR_FALLBACK | CTX_CTRL_FILE;
int ctxid;
int rc = 0;
- ctxid = cxl_process_element(ctx);
+ ctxid = cfg->ops->process_element(ctx);
if (unlikely(ctxid < 0)) {
dev_err(dev, "%s: Context %p was closed ctxid=%d\n",
__func__, ctx, ctxid);
@@ -1188,7 +1190,7 @@ static int cxlflash_cxl_mmap(struct file *file, struct vm_area_struct *vma)
dev_dbg(dev, "%s: mmap for context %d\n", __func__, ctxid);
- rc = cxl_fd_mmap(file, vma);
+ rc = cfg->ops->fd_mmap(file, vma);
if (likely(!rc)) {
/* Insert ourself in the mmap fault handler path */
ctxi->cxl_mmap_vmops = vma->vm_ops;
@@ -1307,23 +1309,23 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
struct afu *afu = cfg->afu;
struct llun_info *lli = sdev->hostdata;
struct glun_info *gli = lli->parent;
- struct cxl_ioctl_start_work *work;
struct ctx_info *ctxi = NULL;
struct lun_access *lun_access = NULL;
int rc = 0;
u32 perms;
int ctxid = -1;
+ u64 irqs = attach->num_interrupts;
u64 flags = 0UL;
u64 rctxid = 0UL;
struct file *file = NULL;
- struct cxl_context *ctx = NULL;
+ void *ctx = NULL;
int fd = -1;
- if (attach->num_interrupts > 4) {
+ if (irqs > 4) {
dev_dbg(dev, "%s: Cannot support this many interrupts %llu\n",
- __func__, attach->num_interrupts);
+ __func__, irqs);
rc = -EINVAL;
goto out;
}
@@ -1394,7 +1396,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
goto err;
}
- ctx = cxl_dev_context_init(cfg->dev);
+ ctx = cfg->ops->dev_context_init(cfg->dev, cfg->afu_cookie);
if (IS_ERR_OR_NULL(ctx)) {
dev_err(dev, "%s: Could not initialize context %p\n",
__func__, ctx);
@@ -1402,25 +1404,21 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
goto err;
}
- work = &ctxi->work;
- work->num_interrupts = attach->num_interrupts;
- work->flags = CXL_START_WORK_NUM_IRQS;
-
- rc = cxl_start_work(ctx, work);
+ rc = cfg->ops->start_work(ctx, irqs);
if (unlikely(rc)) {
dev_dbg(dev, "%s: Could not start context rc=%d\n",
__func__, rc);
goto err;
}
- ctxid = cxl_process_element(ctx);
+ ctxid = cfg->ops->process_element(ctx);
if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
dev_err(dev, "%s: ctxid=%d invalid\n", __func__, ctxid);
rc = -EPERM;
goto err;
}
- file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+ file = cfg->ops->get_fd(ctx, &cfg->cxl_fops, &fd);
if (unlikely(fd < 0)) {
rc = -ENODEV;
dev_err(dev, "%s: Could not get file descriptor\n", __func__);
@@ -1431,7 +1429,7 @@ static int cxlflash_disk_attach(struct scsi_device *sdev,
perms = SISL_RHT_PERM(attach->hdr.flags + 1);
/* Context mutex is locked upon return */
- init_context(ctxi, cfg, ctx, ctxid, file, perms);
+ init_context(ctxi, cfg, ctx, ctxid, file, perms, irqs);
rc = afu_attach(cfg, ctxi);
if (unlikely(rc)) {
@@ -1479,8 +1477,8 @@ out:
err:
/* Cleanup CXL context; okay to 'stop' even if it was not started */
if (!IS_ERR_OR_NULL(ctx)) {
- cxl_stop_context(ctx);
- cxl_release_context(ctx);
+ cfg->ops->stop_context(ctx);
+ cfg->ops->release_context(ctx);
ctx = NULL;
}
@@ -1529,10 +1527,10 @@ static int recover_context(struct cxlflash_cfg *cfg,
int fd = -1;
int ctxid = -1;
struct file *file;
- struct cxl_context *ctx;
+ void *ctx;
struct afu *afu = cfg->afu;
- ctx = cxl_dev_context_init(cfg->dev);
+ ctx = cfg->ops->dev_context_init(cfg->dev, cfg->afu_cookie);
if (IS_ERR_OR_NULL(ctx)) {
dev_err(dev, "%s: Could not initialize context %p\n",
__func__, ctx);
@@ -1540,21 +1538,21 @@ static int recover_context(struct cxlflash_cfg *cfg,
goto out;
}
- rc = cxl_start_work(ctx, &ctxi->work);
+ rc = cfg->ops->start_work(ctx, ctxi->irqs);
if (unlikely(rc)) {
dev_dbg(dev, "%s: Could not start context rc=%d\n",
__func__, rc);
goto err1;
}
- ctxid = cxl_process_element(ctx);
+ ctxid = cfg->ops->process_element(ctx);
if (unlikely((ctxid >= MAX_CONTEXT) || (ctxid < 0))) {
dev_err(dev, "%s: ctxid=%d invalid\n", __func__, ctxid);
rc = -EPERM;
goto err2;
}
- file = cxl_get_fd(ctx, &cfg->cxl_fops, &fd);
+ file = cfg->ops->get_fd(ctx, &cfg->cxl_fops, &fd);
if (unlikely(fd < 0)) {
rc = -ENODEV;
dev_err(dev, "%s: Could not get file descriptor\n", __func__);
@@ -1601,9 +1599,9 @@ err3:
fput(file);
put_unused_fd(fd);
err2:
- cxl_stop_context(ctx);
+ cfg->ops->stop_context(ctx);
err1:
- cxl_release_context(ctx);
+ cfg->ops->release_context(ctx);
goto out;
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.