diff options
| author | Uma Krishnan <ukrishn@linux.vnet.ibm.com> | 2018-03-26 18:33:21 +0200 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2018-04-19 01:32:49 +0200 |
| commit | 73904823764d67da345dbe0d848c1a478c4c92ad (patch) | |
| tree | f349dcbfad23fadae915f5556c58b9573219ee97 /drivers/scsi/cxlflash | |
| parent | scsi: cxlflash: Support reading adapter VPD data (diff) | |
| download | linux-73904823764d67da345dbe0d848c1a478c4c92ad.tar.xz linux-73904823764d67da345dbe0d848c1a478c4c92ad.zip | |
scsi: cxlflash: Setup function OCXL link
After reading and modifying the function configuration, setup the OCXL link
using the OCXL provider services. The link is released when the adapter is
unconfigured.
Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Reviewed-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/cxlflash')
| -rw-r--r-- | drivers/scsi/cxlflash/ocxl_hw.c | 25 | ||||
| -rw-r--r-- | drivers/scsi/cxlflash/ocxl_hw.h | 1 |
2 files changed, 23 insertions, 3 deletions
diff --git a/drivers/scsi/cxlflash/ocxl_hw.c b/drivers/scsi/cxlflash/ocxl_hw.c index a2f04d3f8aa8..67517f8322ec 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.c +++ b/drivers/scsi/cxlflash/ocxl_hw.c @@ -415,11 +415,28 @@ static int ocxlflash_config_fn(struct pci_dev *pdev, struct ocxl_hw_afu *afu) ocxl_config_set_actag(pdev, fcfg->dvsec_function_pos, base, enabled); dev_dbg(dev, "%s: Function acTag range base=%u enabled=%u\n", __func__, base, enabled); + + rc = ocxl_link_setup(pdev, 0, &afu->link_token); + if (unlikely(rc)) { + dev_err(dev, "%s: ocxl_link_setup failed rc=%d\n", + __func__, rc); + goto out; + } out: return rc; } /** + * ocxlflash_unconfig_fn() - unconfigure the host function + * @pdev: PCI device associated with the host. + * @afu: AFU associated with the host. + */ +static void ocxlflash_unconfig_fn(struct pci_dev *pdev, struct ocxl_hw_afu *afu) +{ + ocxl_link_release(pdev, afu->link_token); +} + +/** * ocxlflash_map_mmio() - map the AFU MMIO space * @afu: AFU associated with the host. * @@ -560,7 +577,7 @@ static void *ocxlflash_create_afu(struct pci_dev *pdev) if (unlikely(rc)) { dev_err(dev, "%s: AFU configuration failed rc=%d\n", __func__, rc); - goto err1; + goto err2; } ctx = ocxlflash_dev_context_init(pdev, afu); @@ -568,14 +585,16 @@ static void *ocxlflash_create_afu(struct pci_dev *pdev) rc = PTR_ERR(ctx); dev_err(dev, "%s: ocxlflash_dev_context_init failed rc=%d\n", __func__, rc); - goto err2; + goto err3; } afu->ocxl_ctx = ctx; out: return afu; -err2: +err3: ocxlflash_unconfig_afu(afu); +err2: + ocxlflash_unconfig_fn(pdev, afu); err1: idr_destroy(&afu->idr); kfree(afu); diff --git a/drivers/scsi/cxlflash/ocxl_hw.h b/drivers/scsi/cxlflash/ocxl_hw.h index ee19717ad682..09fa94c73501 100644 --- a/drivers/scsi/cxlflash/ocxl_hw.h +++ b/drivers/scsi/cxlflash/ocxl_hw.h @@ -31,6 +31,7 @@ struct ocxl_hw_afu { phys_addr_t gmmio_phys; /* Global AFU MMIO space */ void __iomem *gmmio_virt; /* Global MMIO map */ + void *link_token; /* Link token for the SPA */ struct idr idr; /* IDR to manage contexts */ int max_pasid; /* Maximum number of contexts */ bool is_present; /* Function has AFUs defined */ |