projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| cbc0dd1f JG |
1 | /* |
| 2 | * Copyright IBM Corp. 2012 | |
| 3 | * | |
| 4 | * Author(s): | |
| 5 | * Jan Glauber <jang@linux.vnet.ibm.com> | |
| 6 | */ | |
| 7 | ||
| 8 | #define COMPONENT "zPCI" | |
| 9 | #define pr_fmt(fmt) COMPONENT ": " fmt | |
| 10 | ||
| 11 | #include <linux/kernel.h> | |
| 12 | #include <linux/pci.h> | |
| 13 | ||
| 14 | /* Content Code Description for PCI Function Error */ | |
| 15 | struct zpci_ccdf_err { | |
| 16 | u32 reserved1; | |
| 17 | u32 fh; /* function handle */ | |
| 18 | u32 fid; /* function id */ | |
| 19 | u32 ett : 4; /* expected table type */ | |
| 20 | u32 mvn : 12; /* MSI vector number */ | |
| 21 | u32 dmaas : 8; /* DMA address space */ | |
| 22 | u32 : 6; | |
| 23 | u32 q : 1; /* event qualifier */ | |
| 24 | u32 rw : 1; /* read/write */ | |
| 25 | u64 faddr; /* failing address */ | |
| 26 | u32 reserved3; | |
| 27 | u16 reserved4; | |
| 28 | u16 pec; /* PCI event code */ | |
| 29 | } __packed; | |
| 30 | ||
| 31 | /* Content Code Description for PCI Function Availability */ | |
| 32 | struct zpci_ccdf_avail { | |
| 33 | u32 reserved1; | |
| 34 | u32 fh; /* function handle */ | |
| 35 | u32 fid; /* function id */ | |
| 36 | u32 reserved2; | |
| 37 | u32 reserved3; | |
| 38 | u32 reserved4; | |
| 39 | u32 reserved5; | |
| 40 | u16 reserved6; | |
| 41 | u16 pec; /* PCI event code */ | |
| 42 | } __packed; | |
| 43 | ||
| 44 | static void zpci_event_log_err(struct zpci_ccdf_err *ccdf) | |
| 45 | { | |
| 46 | struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); | |
| 47 | ||
| d0b08853 JG |
48 | zpci_err("SEI error CCD:\n"); |
| 49 | zpci_err_hex(ccdf, sizeof(*ccdf)); | |
| cbc0dd1f JG |
50 | dev_err(&zdev->pdev->dev, "event code: 0x%x\n", ccdf->pec); |
| 51 | } | |
| 52 | ||
| 53 | static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf) | |
| 54 | { | |
| 55 | struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); | |
| 56 | ||
| 57 | pr_err("%s%s: availability event: fh: 0x%x fid: 0x%x event code: 0x%x reason:", | |
| 58 | (zdev) ? dev_driver_string(&zdev->pdev->dev) : "?", | |
| 59 | (zdev) ? dev_name(&zdev->pdev->dev) : "?", | |
| 60 | ccdf->fh, ccdf->fid, ccdf->pec); | |
| 61 | print_hex_dump(KERN_CONT, "ccdf", DUMP_PREFIX_OFFSET, | |
| 62 | 16, 1, ccdf, sizeof(*ccdf), false); | |
| 63 | ||
| 64 | switch (ccdf->pec) { | |
| 65 | case 0x0301: | |
| 66 | zpci_enable_device(zdev); | |
| 67 | break; | |
| 68 | case 0x0302: | |
| 69 | clp_add_pci_device(ccdf->fid, ccdf->fh, 0); | |
| 70 | break; | |
| 71 | case 0x0306: | |
| 72 | clp_find_pci_devices(); | |
| 73 | break; | |
| 74 | default: | |
| 75 | break; | |
| 76 | } | |
| 77 | } | |
| 78 | ||
| 79 | void zpci_event_error(void *data) | |
| 80 | { | |
| 81 | struct zpci_ccdf_err *ccdf = data; | |
| 82 | struct zpci_dev *zdev; | |
| 83 | ||
| 84 | zpci_event_log_err(ccdf); | |
| 85 | zdev = get_zdev_by_fid(ccdf->fid); | |
| 86 | if (!zdev) { | |
| 87 | pr_err("Error event for unknown fid: %x", ccdf->fid); | |
| 88 | return; | |
| 89 | } | |
| 90 | } | |
| 91 | ||
| 92 | void zpci_event_availability(void *data) | |
| 93 | { | |
| 94 | zpci_event_log_avail(data); | |
| 95 | } |