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> | |
| 1f1dcbd4 | 13 | #include <asm/pci_debug.h> |
| cbc0dd1f JG |
14 | |
| 15 | /* Content Code Description for PCI Function Error */ | |
| 16 | struct zpci_ccdf_err { | |
| 17 | u32 reserved1; | |
| 18 | u32 fh; /* function handle */ | |
| 19 | u32 fid; /* function id */ | |
| 20 | u32 ett : 4; /* expected table type */ | |
| 21 | u32 mvn : 12; /* MSI vector number */ | |
| 22 | u32 dmaas : 8; /* DMA address space */ | |
| 23 | u32 : 6; | |
| 24 | u32 q : 1; /* event qualifier */ | |
| 25 | u32 rw : 1; /* read/write */ | |
| 26 | u64 faddr; /* failing address */ | |
| 27 | u32 reserved3; | |
| 28 | u16 reserved4; | |
| 29 | u16 pec; /* PCI event code */ | |
| 30 | } __packed; | |
| 31 | ||
| 32 | /* Content Code Description for PCI Function Availability */ | |
| 33 | struct zpci_ccdf_avail { | |
| 34 | u32 reserved1; | |
| 35 | u32 fh; /* function handle */ | |
| 36 | u32 fid; /* function id */ | |
| 37 | u32 reserved2; | |
| 38 | u32 reserved3; | |
| 39 | u32 reserved4; | |
| 40 | u32 reserved5; | |
| 41 | u16 reserved6; | |
| 42 | u16 pec; /* PCI event code */ | |
| 43 | } __packed; | |
| 44 | ||
| cbc0dd1f JG |
45 | static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf) |
| 46 | { | |
| 47 | struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); | |
| 1f1dcbd4 | 48 | struct pci_dev *pdev = zdev ? zdev->pdev : NULL; |
| cbc0dd1f | 49 | |
| 1f1dcbd4 SO |
50 | pr_info("%s: Event 0x%x reconfigured PCI function 0x%x\n", |
| 51 | pdev ? pci_name(pdev) : "n/a", ccdf->pec, ccdf->fid); | |
| 52 | zpci_err("avail CCDF:\n"); | |
| 53 | zpci_err_hex(ccdf, sizeof(*ccdf)); | |
| cbc0dd1f JG |
54 | |
| 55 | switch (ccdf->pec) { | |
| 56 | case 0x0301: | |
| 57 | zpci_enable_device(zdev); | |
| 58 | break; | |
| 59 | case 0x0302: | |
| 60 | clp_add_pci_device(ccdf->fid, ccdf->fh, 0); | |
| 61 | break; | |
| 62 | case 0x0306: | |
| 1d578966 | 63 | clp_rescan_pci_devices(); |
| cbc0dd1f JG |
64 | break; |
| 65 | default: | |
| 66 | break; | |
| 67 | } | |
| 68 | } | |
| 69 | ||
| 70 | void zpci_event_error(void *data) | |
| 71 | { | |
| 72 | struct zpci_ccdf_err *ccdf = data; | |
| 1f1dcbd4 SO |
73 | struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); |
| 74 | ||
| 75 | zpci_err("error CCDF:\n"); | |
| 76 | zpci_err_hex(ccdf, sizeof(*ccdf)); | |
| cbc0dd1f | 77 | |
| 1f1dcbd4 | 78 | if (!zdev) |
| cbc0dd1f | 79 | return; |
| 1f1dcbd4 SO |
80 | |
| 81 | pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n", | |
| 82 | pci_name(zdev->pdev), ccdf->pec, ccdf->fid); | |
| cbc0dd1f JG |
83 | } |
| 84 | ||
| 85 | void zpci_event_availability(void *data) | |
| 86 | { | |
| 87 | zpci_event_log_avail(data); | |
| 88 | } |