mirror of https://gitee.com/openkylin/linux.git
96 lines
2.2 KiB
C
96 lines
2.2 KiB
C
/*
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* Copyright IBM Corp. 2012
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*
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* Author(s):
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* Jan Glauber <jang@linux.vnet.ibm.com>
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*/
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#define COMPONENT "zPCI"
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#define pr_fmt(fmt) COMPONENT ": " fmt
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#include <linux/kernel.h>
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#include <linux/pci.h>
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/* Content Code Description for PCI Function Error */
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struct zpci_ccdf_err {
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u32 reserved1;
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u32 fh; /* function handle */
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u32 fid; /* function id */
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u32 ett : 4; /* expected table type */
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u32 mvn : 12; /* MSI vector number */
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u32 dmaas : 8; /* DMA address space */
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u32 : 6;
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u32 q : 1; /* event qualifier */
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u32 rw : 1; /* read/write */
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u64 faddr; /* failing address */
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u32 reserved3;
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u16 reserved4;
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u16 pec; /* PCI event code */
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} __packed;
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/* Content Code Description for PCI Function Availability */
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struct zpci_ccdf_avail {
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u32 reserved1;
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u32 fh; /* function handle */
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u32 fid; /* function id */
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u32 reserved2;
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u32 reserved3;
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u32 reserved4;
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u32 reserved5;
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u16 reserved6;
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u16 pec; /* PCI event code */
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} __packed;
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static void zpci_event_log_err(struct zpci_ccdf_err *ccdf)
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{
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struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
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zpci_err("SEI error CCD:\n");
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zpci_err_hex(ccdf, sizeof(*ccdf));
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dev_err(&zdev->pdev->dev, "event code: 0x%x\n", ccdf->pec);
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}
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static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
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{
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struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
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pr_err("%s%s: availability event: fh: 0x%x fid: 0x%x event code: 0x%x reason:",
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(zdev) ? dev_driver_string(&zdev->pdev->dev) : "?",
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(zdev) ? dev_name(&zdev->pdev->dev) : "?",
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ccdf->fh, ccdf->fid, ccdf->pec);
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print_hex_dump(KERN_CONT, "ccdf", DUMP_PREFIX_OFFSET,
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16, 1, ccdf, sizeof(*ccdf), false);
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switch (ccdf->pec) {
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case 0x0301:
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zpci_enable_device(zdev);
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break;
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case 0x0302:
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clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
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break;
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case 0x0306:
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clp_find_pci_devices();
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break;
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default:
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break;
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}
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}
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void zpci_event_error(void *data)
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{
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struct zpci_ccdf_err *ccdf = data;
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struct zpci_dev *zdev;
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zpci_event_log_err(ccdf);
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zdev = get_zdev_by_fid(ccdf->fid);
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if (!zdev) {
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pr_err("Error event for unknown fid: %x", ccdf->fid);
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return;
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}
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}
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void zpci_event_availability(void *data)
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{
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zpci_event_log_avail(data);
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}
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