diff options
Diffstat (limited to 'drivers/scsi/cxlflash/ocxl_hw.c')
-rw-r--r-- | drivers/scsi/cxlflash/ocxl_hw.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c index cbe4d9341f5a..e8864a1f244d 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.c +++ b/drivers/scsi/cxlflash/ocxl_hw.c @@ -12,6 +12,8 @@ * 2 of the License, or (at your option) any later version. */ +#include <linux/idr.h> + #include <misc/ocxl.h> #include "backend.h" @@ -60,14 +62,25 @@ static void *ocxlflash_dev_context_init(struct pci_dev *pdev, void *afu_cookie) if (unlikely(!ctx)) { dev_err(dev, "%s: Context allocation failed\n", __func__); rc = -ENOMEM; - goto err; + goto err1; + } + + idr_preload(GFP_KERNEL); + rc = idr_alloc(&afu->idr, ctx, 0, afu->max_pasid, GFP_NOWAIT); + idr_preload_end(); + if (unlikely(rc < 0)) { + dev_err(dev, "%s: idr_alloc failed rc=%d\n", __func__, rc); + goto err2; } + ctx->pe = rc; ctx->master = false; ctx->hw_afu = afu; out: return ctx; -err: +err2: + kfree(ctx); +err1: ctx = ERR_PTR(rc); goto out; } @@ -86,6 +99,7 @@ static int ocxlflash_release_context(void *ctx_cookie) if (!ctx) goto out; + idr_remove(&ctx->hw_afu->idr, ctx->pe); kfree(ctx); out: return rc; @@ -103,6 +117,7 @@ static void ocxlflash_destroy_afu(void *afu_cookie) return; ocxlflash_release_context(afu->ocxl_ctx); + idr_destroy(&afu->idr); kfree(afu); } @@ -221,6 +236,7 @@ static void *ocxlflash_create_afu(struct pci_dev *pdev) afu->pdev = pdev; afu->dev = dev; + idr_init(&afu->idr); rc = ocxlflash_config_fn(pdev, afu); if (unlikely(rc)) { @@ -248,6 +264,7 @@ static void *ocxlflash_create_afu(struct pci_dev *pdev) out: return afu; err1: + idr_destroy(&afu->idr); kfree(afu); afu = NULL; goto out; |