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2949 lines
72 KiB
2949 lines
72 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* QLogic iSCSI Offload Driver |
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* Copyright (c) 2016 Cavium Inc. |
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*/ |
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|
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#include <linux/module.h> |
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#include <linux/pci.h> |
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#include <linux/kernel.h> |
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#include <linux/if_arp.h> |
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#include <scsi/iscsi_if.h> |
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#include <linux/inet.h> |
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#include <net/arp.h> |
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#include <linux/list.h> |
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#include <linux/kthread.h> |
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#include <linux/mm.h> |
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#include <linux/if_vlan.h> |
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#include <linux/cpu.h> |
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#include <linux/iscsi_boot_sysfs.h> |
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|
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#include <scsi/scsi_cmnd.h> |
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#include <scsi/scsi_device.h> |
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#include <scsi/scsi_eh.h> |
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#include <scsi/scsi_host.h> |
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#include <scsi/scsi.h> |
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|
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#include "qedi.h" |
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#include "qedi_gbl.h" |
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#include "qedi_iscsi.h" |
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|
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static uint qedi_qed_debug; |
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module_param(qedi_qed_debug, uint, 0644); |
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MODULE_PARM_DESC(qedi_qed_debug, " QED debug level 0 (default)"); |
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|
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static uint qedi_fw_debug; |
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module_param(qedi_fw_debug, uint, 0644); |
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MODULE_PARM_DESC(qedi_fw_debug, " Firmware debug level 0(default) to 3"); |
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|
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uint qedi_dbg_log = QEDI_LOG_WARN | QEDI_LOG_SCSI_TM; |
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module_param(qedi_dbg_log, uint, 0644); |
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MODULE_PARM_DESC(qedi_dbg_log, " Default debug level"); |
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|
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uint qedi_io_tracing; |
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module_param(qedi_io_tracing, uint, 0644); |
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MODULE_PARM_DESC(qedi_io_tracing, |
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" Enable logging of SCSI requests/completions into trace buffer. (default off)."); |
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|
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static uint qedi_ll2_buf_size = 0x400; |
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module_param(qedi_ll2_buf_size, uint, 0644); |
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MODULE_PARM_DESC(qedi_ll2_buf_size, |
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"parameter to set ping packet size, default - 0x400, Jumbo packets - 0x2400."); |
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|
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static uint qedi_flags_override; |
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module_param(qedi_flags_override, uint, 0644); |
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MODULE_PARM_DESC(qedi_flags_override, "Disable/Enable MFW error flags bits action."); |
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|
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const struct qed_iscsi_ops *qedi_ops; |
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static struct scsi_transport_template *qedi_scsi_transport; |
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static struct pci_driver qedi_pci_driver; |
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static DEFINE_PER_CPU(struct qedi_percpu_s, qedi_percpu); |
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static LIST_HEAD(qedi_udev_list); |
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/* Static function declaration */ |
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static int qedi_alloc_global_queues(struct qedi_ctx *qedi); |
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static void qedi_free_global_queues(struct qedi_ctx *qedi); |
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static struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid); |
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static void qedi_reset_uio_rings(struct qedi_uio_dev *udev); |
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static void qedi_ll2_free_skbs(struct qedi_ctx *qedi); |
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static struct nvm_iscsi_block *qedi_get_nvram_block(struct qedi_ctx *qedi); |
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static void qedi_recovery_handler(struct work_struct *work); |
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static void qedi_schedule_hw_err_handler(void *dev, |
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enum qed_hw_err_type err_type); |
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|
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static int qedi_iscsi_event_cb(void *context, u8 fw_event_code, void *fw_handle) |
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{ |
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struct qedi_ctx *qedi; |
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struct qedi_endpoint *qedi_ep; |
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struct iscsi_eqe_data *data; |
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int rval = 0; |
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|
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if (!context || !fw_handle) { |
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QEDI_ERR(NULL, "Recv event with ctx NULL\n"); |
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return -EINVAL; |
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} |
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qedi = (struct qedi_ctx *)context; |
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QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
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"Recv Event %d fw_handle %p\n", fw_event_code, fw_handle); |
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|
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data = (struct iscsi_eqe_data *)fw_handle; |
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QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
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"icid=0x%x conn_id=0x%x err-code=0x%x error-pdu-opcode-reserved=0x%x\n", |
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data->icid, data->conn_id, data->error_code, |
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data->error_pdu_opcode_reserved); |
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|
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qedi_ep = qedi->ep_tbl[data->icid]; |
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|
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if (!qedi_ep) { |
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QEDI_WARN(&qedi->dbg_ctx, |
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"Cannot process event, ep already disconnected, cid=0x%x\n", |
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data->icid); |
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WARN_ON(1); |
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return -ENODEV; |
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} |
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switch (fw_event_code) { |
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case ISCSI_EVENT_TYPE_ASYN_CONNECT_COMPLETE: |
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if (qedi_ep->state == EP_STATE_OFLDCONN_START) |
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qedi_ep->state = EP_STATE_OFLDCONN_COMPL; |
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|
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wake_up_interruptible(&qedi_ep->tcp_ofld_wait); |
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break; |
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case ISCSI_EVENT_TYPE_ASYN_TERMINATE_DONE: |
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qedi_ep->state = EP_STATE_DISCONN_COMPL; |
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wake_up_interruptible(&qedi_ep->tcp_ofld_wait); |
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break; |
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case ISCSI_EVENT_TYPE_ISCSI_CONN_ERROR: |
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qedi_process_iscsi_error(qedi_ep, data); |
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break; |
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case ISCSI_EVENT_TYPE_ASYN_ABORT_RCVD: |
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case ISCSI_EVENT_TYPE_ASYN_SYN_RCVD: |
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case ISCSI_EVENT_TYPE_ASYN_MAX_RT_TIME: |
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case ISCSI_EVENT_TYPE_ASYN_MAX_RT_CNT: |
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case ISCSI_EVENT_TYPE_ASYN_MAX_KA_PROBES_CNT: |
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case ISCSI_EVENT_TYPE_ASYN_FIN_WAIT2: |
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case ISCSI_EVENT_TYPE_TCP_CONN_ERROR: |
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qedi_process_tcp_error(qedi_ep, data); |
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break; |
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default: |
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QEDI_ERR(&qedi->dbg_ctx, "Recv Unknown Event %u\n", |
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fw_event_code); |
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} |
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return rval; |
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} |
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static int qedi_uio_open(struct uio_info *uinfo, struct inode *inode) |
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{ |
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struct qedi_uio_dev *udev = uinfo->priv; |
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struct qedi_ctx *qedi = udev->qedi; |
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if (!capable(CAP_NET_ADMIN)) |
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return -EPERM; |
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if (udev->uio_dev != -1) |
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return -EBUSY; |
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rtnl_lock(); |
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udev->uio_dev = iminor(inode); |
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qedi_reset_uio_rings(udev); |
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set_bit(UIO_DEV_OPENED, &qedi->flags); |
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rtnl_unlock(); |
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return 0; |
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} |
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static int qedi_uio_close(struct uio_info *uinfo, struct inode *inode) |
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{ |
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struct qedi_uio_dev *udev = uinfo->priv; |
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struct qedi_ctx *qedi = udev->qedi; |
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udev->uio_dev = -1; |
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clear_bit(UIO_DEV_OPENED, &qedi->flags); |
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qedi_ll2_free_skbs(qedi); |
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return 0; |
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} |
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static void __qedi_free_uio_rings(struct qedi_uio_dev *udev) |
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{ |
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if (udev->uctrl) { |
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free_page((unsigned long)udev->uctrl); |
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udev->uctrl = NULL; |
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} |
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if (udev->ll2_ring) { |
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free_page((unsigned long)udev->ll2_ring); |
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udev->ll2_ring = NULL; |
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} |
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if (udev->ll2_buf) { |
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free_pages((unsigned long)udev->ll2_buf, 2); |
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udev->ll2_buf = NULL; |
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} |
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} |
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static void __qedi_free_uio(struct qedi_uio_dev *udev) |
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{ |
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uio_unregister_device(&udev->qedi_uinfo); |
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__qedi_free_uio_rings(udev); |
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pci_dev_put(udev->pdev); |
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kfree(udev); |
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} |
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static void qedi_free_uio(struct qedi_uio_dev *udev) |
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{ |
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if (!udev) |
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return; |
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list_del_init(&udev->list); |
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__qedi_free_uio(udev); |
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} |
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static void qedi_reset_uio_rings(struct qedi_uio_dev *udev) |
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{ |
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struct qedi_ctx *qedi = NULL; |
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struct qedi_uio_ctrl *uctrl = NULL; |
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qedi = udev->qedi; |
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uctrl = udev->uctrl; |
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spin_lock_bh(&qedi->ll2_lock); |
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uctrl->host_rx_cons = 0; |
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uctrl->hw_rx_prod = 0; |
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uctrl->hw_rx_bd_prod = 0; |
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uctrl->host_rx_bd_cons = 0; |
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memset(udev->ll2_ring, 0, udev->ll2_ring_size); |
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memset(udev->ll2_buf, 0, udev->ll2_buf_size); |
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spin_unlock_bh(&qedi->ll2_lock); |
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} |
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static int __qedi_alloc_uio_rings(struct qedi_uio_dev *udev) |
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{ |
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int rc = 0; |
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if (udev->ll2_ring || udev->ll2_buf) |
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return rc; |
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|
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/* Memory for control area. */ |
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udev->uctrl = (void *)get_zeroed_page(GFP_KERNEL); |
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if (!udev->uctrl) |
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return -ENOMEM; |
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|
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/* Allocating memory for LL2 ring */ |
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udev->ll2_ring_size = QEDI_PAGE_SIZE; |
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udev->ll2_ring = (void *)get_zeroed_page(GFP_KERNEL | __GFP_COMP); |
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if (!udev->ll2_ring) { |
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rc = -ENOMEM; |
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goto exit_alloc_ring; |
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} |
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/* Allocating memory for Tx/Rx pkt buffer */ |
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udev->ll2_buf_size = TX_RX_RING * qedi_ll2_buf_size; |
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udev->ll2_buf_size = QEDI_PAGE_ALIGN(udev->ll2_buf_size); |
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udev->ll2_buf = (void *)__get_free_pages(GFP_KERNEL | __GFP_COMP | |
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__GFP_ZERO, 2); |
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if (!udev->ll2_buf) { |
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rc = -ENOMEM; |
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goto exit_alloc_buf; |
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} |
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return rc; |
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exit_alloc_buf: |
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free_page((unsigned long)udev->ll2_ring); |
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udev->ll2_ring = NULL; |
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exit_alloc_ring: |
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return rc; |
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} |
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static int qedi_alloc_uio_rings(struct qedi_ctx *qedi) |
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{ |
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struct qedi_uio_dev *udev = NULL; |
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int rc = 0; |
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list_for_each_entry(udev, &qedi_udev_list, list) { |
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if (udev->pdev == qedi->pdev) { |
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udev->qedi = qedi; |
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if (__qedi_alloc_uio_rings(udev)) { |
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udev->qedi = NULL; |
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return -ENOMEM; |
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} |
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qedi->udev = udev; |
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return 0; |
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} |
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} |
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udev = kzalloc(sizeof(*udev), GFP_KERNEL); |
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if (!udev) { |
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rc = -ENOMEM; |
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goto err_udev; |
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} |
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udev->uio_dev = -1; |
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udev->qedi = qedi; |
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udev->pdev = qedi->pdev; |
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rc = __qedi_alloc_uio_rings(udev); |
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if (rc) |
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goto err_uctrl; |
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list_add(&udev->list, &qedi_udev_list); |
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pci_dev_get(udev->pdev); |
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qedi->udev = udev; |
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udev->tx_pkt = udev->ll2_buf; |
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udev->rx_pkt = udev->ll2_buf + qedi_ll2_buf_size; |
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return 0; |
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err_uctrl: |
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kfree(udev); |
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err_udev: |
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return -ENOMEM; |
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} |
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static int qedi_init_uio(struct qedi_ctx *qedi) |
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{ |
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struct qedi_uio_dev *udev = qedi->udev; |
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struct uio_info *uinfo; |
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int ret = 0; |
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if (!udev) |
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return -ENOMEM; |
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uinfo = &udev->qedi_uinfo; |
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uinfo->mem[0].addr = (unsigned long)udev->uctrl; |
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uinfo->mem[0].size = sizeof(struct qedi_uio_ctrl); |
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uinfo->mem[0].memtype = UIO_MEM_LOGICAL; |
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|
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uinfo->mem[1].addr = (unsigned long)udev->ll2_ring; |
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uinfo->mem[1].size = udev->ll2_ring_size; |
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uinfo->mem[1].memtype = UIO_MEM_LOGICAL; |
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|
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uinfo->mem[2].addr = (unsigned long)udev->ll2_buf; |
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uinfo->mem[2].size = udev->ll2_buf_size; |
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uinfo->mem[2].memtype = UIO_MEM_LOGICAL; |
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|
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uinfo->name = "qedi_uio"; |
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uinfo->version = QEDI_MODULE_VERSION; |
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uinfo->irq = UIO_IRQ_CUSTOM; |
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uinfo->open = qedi_uio_open; |
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uinfo->release = qedi_uio_close; |
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if (udev->uio_dev == -1) { |
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if (!uinfo->priv) { |
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uinfo->priv = udev; |
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ret = uio_register_device(&udev->pdev->dev, uinfo); |
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if (ret) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"UIO registration failed\n"); |
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} |
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} |
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} |
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return ret; |
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} |
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static int qedi_alloc_and_init_sb(struct qedi_ctx *qedi, |
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struct qed_sb_info *sb_info, u16 sb_id) |
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{ |
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struct status_block_e4 *sb_virt; |
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dma_addr_t sb_phys; |
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int ret; |
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sb_virt = dma_alloc_coherent(&qedi->pdev->dev, |
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sizeof(struct status_block_e4), &sb_phys, |
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GFP_KERNEL); |
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if (!sb_virt) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"Status block allocation failed for id = %d.\n", |
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sb_id); |
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return -ENOMEM; |
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} |
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|
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ret = qedi_ops->common->sb_init(qedi->cdev, sb_info, sb_virt, sb_phys, |
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sb_id, QED_SB_TYPE_STORAGE); |
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if (ret) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"Status block initialization failed for id = %d.\n", |
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sb_id); |
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return ret; |
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} |
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|
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return 0; |
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} |
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|
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static void qedi_free_sb(struct qedi_ctx *qedi) |
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{ |
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struct qed_sb_info *sb_info; |
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int id; |
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|
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for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) { |
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sb_info = &qedi->sb_array[id]; |
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if (sb_info->sb_virt) |
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dma_free_coherent(&qedi->pdev->dev, |
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sizeof(*sb_info->sb_virt), |
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(void *)sb_info->sb_virt, |
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sb_info->sb_phys); |
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} |
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} |
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static void qedi_free_fp(struct qedi_ctx *qedi) |
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{ |
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kfree(qedi->fp_array); |
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kfree(qedi->sb_array); |
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} |
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|
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static void qedi_destroy_fp(struct qedi_ctx *qedi) |
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{ |
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qedi_free_sb(qedi); |
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qedi_free_fp(qedi); |
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} |
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|
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static int qedi_alloc_fp(struct qedi_ctx *qedi) |
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{ |
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int ret = 0; |
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|
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qedi->fp_array = kcalloc(MIN_NUM_CPUS_MSIX(qedi), |
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sizeof(struct qedi_fastpath), GFP_KERNEL); |
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if (!qedi->fp_array) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"fastpath fp array allocation failed.\n"); |
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return -ENOMEM; |
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} |
|
|
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qedi->sb_array = kcalloc(MIN_NUM_CPUS_MSIX(qedi), |
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sizeof(struct qed_sb_info), GFP_KERNEL); |
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if (!qedi->sb_array) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"fastpath sb array allocation failed.\n"); |
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ret = -ENOMEM; |
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goto free_fp; |
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} |
|
|
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return ret; |
|
|
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free_fp: |
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qedi_free_fp(qedi); |
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return ret; |
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} |
|
|
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static void qedi_int_fp(struct qedi_ctx *qedi) |
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{ |
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struct qedi_fastpath *fp; |
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int id; |
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|
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memset(qedi->fp_array, 0, MIN_NUM_CPUS_MSIX(qedi) * |
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sizeof(*qedi->fp_array)); |
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memset(qedi->sb_array, 0, MIN_NUM_CPUS_MSIX(qedi) * |
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sizeof(*qedi->sb_array)); |
|
|
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for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) { |
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fp = &qedi->fp_array[id]; |
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fp->sb_info = &qedi->sb_array[id]; |
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fp->sb_id = id; |
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fp->qedi = qedi; |
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snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", |
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"qedi", id); |
|
|
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/* fp_array[i] ---- irq cookie |
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* So init data which is needed in int ctx |
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*/ |
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} |
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} |
|
|
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static int qedi_prepare_fp(struct qedi_ctx *qedi) |
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{ |
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struct qedi_fastpath *fp; |
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int id, ret = 0; |
|
|
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ret = qedi_alloc_fp(qedi); |
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if (ret) |
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goto err; |
|
|
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qedi_int_fp(qedi); |
|
|
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for (id = 0; id < MIN_NUM_CPUS_MSIX(qedi); id++) { |
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fp = &qedi->fp_array[id]; |
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ret = qedi_alloc_and_init_sb(qedi, fp->sb_info, fp->sb_id); |
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if (ret) { |
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QEDI_ERR(&qedi->dbg_ctx, |
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"SB allocation and initialization failed.\n"); |
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ret = -EIO; |
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goto err_init; |
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} |
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} |
|
|
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return 0; |
|
|
|
err_init: |
|
qedi_free_sb(qedi); |
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qedi_free_fp(qedi); |
|
err: |
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return ret; |
|
} |
|
|
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static int qedi_setup_cid_que(struct qedi_ctx *qedi) |
|
{ |
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int i; |
|
|
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qedi->cid_que.cid_que_base = kmalloc_array(qedi->max_active_conns, |
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sizeof(u32), GFP_KERNEL); |
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if (!qedi->cid_que.cid_que_base) |
|
return -ENOMEM; |
|
|
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qedi->cid_que.conn_cid_tbl = kmalloc_array(qedi->max_active_conns, |
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sizeof(struct qedi_conn *), |
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GFP_KERNEL); |
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if (!qedi->cid_que.conn_cid_tbl) { |
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kfree(qedi->cid_que.cid_que_base); |
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qedi->cid_que.cid_que_base = NULL; |
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return -ENOMEM; |
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} |
|
|
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qedi->cid_que.cid_que = (u32 *)qedi->cid_que.cid_que_base; |
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qedi->cid_que.cid_q_prod_idx = 0; |
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qedi->cid_que.cid_q_cons_idx = 0; |
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qedi->cid_que.cid_q_max_idx = qedi->max_active_conns; |
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qedi->cid_que.cid_free_cnt = qedi->max_active_conns; |
|
|
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for (i = 0; i < qedi->max_active_conns; i++) { |
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qedi->cid_que.cid_que[i] = i; |
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qedi->cid_que.conn_cid_tbl[i] = NULL; |
|
} |
|
|
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return 0; |
|
} |
|
|
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static void qedi_release_cid_que(struct qedi_ctx *qedi) |
|
{ |
|
kfree(qedi->cid_que.cid_que_base); |
|
qedi->cid_que.cid_que_base = NULL; |
|
|
|
kfree(qedi->cid_que.conn_cid_tbl); |
|
qedi->cid_que.conn_cid_tbl = NULL; |
|
} |
|
|
|
static int qedi_init_id_tbl(struct qedi_portid_tbl *id_tbl, u16 size, |
|
u16 start_id, u16 next) |
|
{ |
|
id_tbl->start = start_id; |
|
id_tbl->max = size; |
|
id_tbl->next = next; |
|
spin_lock_init(&id_tbl->lock); |
|
id_tbl->table = kcalloc(BITS_TO_LONGS(size), sizeof(long), GFP_KERNEL); |
|
if (!id_tbl->table) |
|
return -ENOMEM; |
|
|
|
return 0; |
|
} |
|
|
|
static void qedi_free_id_tbl(struct qedi_portid_tbl *id_tbl) |
|
{ |
|
kfree(id_tbl->table); |
|
id_tbl->table = NULL; |
|
} |
|
|
|
int qedi_alloc_id(struct qedi_portid_tbl *id_tbl, u16 id) |
|
{ |
|
int ret = -1; |
|
|
|
id -= id_tbl->start; |
|
if (id >= id_tbl->max) |
|
return ret; |
|
|
|
spin_lock(&id_tbl->lock); |
|
if (!test_bit(id, id_tbl->table)) { |
|
set_bit(id, id_tbl->table); |
|
ret = 0; |
|
} |
|
spin_unlock(&id_tbl->lock); |
|
return ret; |
|
} |
|
|
|
u16 qedi_alloc_new_id(struct qedi_portid_tbl *id_tbl) |
|
{ |
|
u16 id; |
|
|
|
spin_lock(&id_tbl->lock); |
|
id = find_next_zero_bit(id_tbl->table, id_tbl->max, id_tbl->next); |
|
if (id >= id_tbl->max) { |
|
id = QEDI_LOCAL_PORT_INVALID; |
|
if (id_tbl->next != 0) { |
|
id = find_first_zero_bit(id_tbl->table, id_tbl->next); |
|
if (id >= id_tbl->next) |
|
id = QEDI_LOCAL_PORT_INVALID; |
|
} |
|
} |
|
|
|
if (id < id_tbl->max) { |
|
set_bit(id, id_tbl->table); |
|
id_tbl->next = (id + 1) & (id_tbl->max - 1); |
|
id += id_tbl->start; |
|
} |
|
|
|
spin_unlock(&id_tbl->lock); |
|
|
|
return id; |
|
} |
|
|
|
void qedi_free_id(struct qedi_portid_tbl *id_tbl, u16 id) |
|
{ |
|
if (id == QEDI_LOCAL_PORT_INVALID) |
|
return; |
|
|
|
id -= id_tbl->start; |
|
if (id >= id_tbl->max) |
|
return; |
|
|
|
clear_bit(id, id_tbl->table); |
|
} |
|
|
|
static void qedi_cm_free_mem(struct qedi_ctx *qedi) |
|
{ |
|
kfree(qedi->ep_tbl); |
|
qedi->ep_tbl = NULL; |
|
qedi_free_id_tbl(&qedi->lcl_port_tbl); |
|
} |
|
|
|
static int qedi_cm_alloc_mem(struct qedi_ctx *qedi) |
|
{ |
|
u16 port_id; |
|
|
|
qedi->ep_tbl = kzalloc((qedi->max_active_conns * |
|
sizeof(struct qedi_endpoint *)), GFP_KERNEL); |
|
if (!qedi->ep_tbl) |
|
return -ENOMEM; |
|
port_id = prandom_u32() % QEDI_LOCAL_PORT_RANGE; |
|
if (qedi_init_id_tbl(&qedi->lcl_port_tbl, QEDI_LOCAL_PORT_RANGE, |
|
QEDI_LOCAL_PORT_MIN, port_id)) { |
|
qedi_cm_free_mem(qedi); |
|
return -ENOMEM; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static struct qedi_ctx *qedi_host_alloc(struct pci_dev *pdev) |
|
{ |
|
struct Scsi_Host *shost; |
|
struct qedi_ctx *qedi = NULL; |
|
|
|
shost = iscsi_host_alloc(&qedi_host_template, |
|
sizeof(struct qedi_ctx), 0); |
|
if (!shost) { |
|
QEDI_ERR(NULL, "Could not allocate shost\n"); |
|
goto exit_setup_shost; |
|
} |
|
|
|
shost->max_id = QEDI_MAX_ISCSI_CONNS_PER_HBA; |
|
shost->max_channel = 0; |
|
shost->max_lun = ~0; |
|
shost->max_cmd_len = 16; |
|
shost->transportt = qedi_scsi_transport; |
|
|
|
qedi = iscsi_host_priv(shost); |
|
memset(qedi, 0, sizeof(*qedi)); |
|
qedi->shost = shost; |
|
qedi->dbg_ctx.host_no = shost->host_no; |
|
qedi->pdev = pdev; |
|
qedi->dbg_ctx.pdev = pdev; |
|
qedi->max_active_conns = ISCSI_MAX_SESS_PER_HBA; |
|
qedi->max_sqes = QEDI_SQ_SIZE; |
|
|
|
shost->nr_hw_queues = MIN_NUM_CPUS_MSIX(qedi); |
|
|
|
pci_set_drvdata(pdev, qedi); |
|
|
|
exit_setup_shost: |
|
return qedi; |
|
} |
|
|
|
static int qedi_ll2_rx(void *cookie, struct sk_buff *skb, u32 arg1, u32 arg2) |
|
{ |
|
struct qedi_ctx *qedi = (struct qedi_ctx *)cookie; |
|
struct skb_work_list *work; |
|
struct ethhdr *eh; |
|
|
|
if (!qedi) { |
|
QEDI_ERR(NULL, "qedi is NULL\n"); |
|
return -1; |
|
} |
|
|
|
if (!test_bit(UIO_DEV_OPENED, &qedi->flags)) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_UIO, |
|
"UIO DEV is not opened\n"); |
|
kfree_skb(skb); |
|
return 0; |
|
} |
|
|
|
eh = (struct ethhdr *)skb->data; |
|
/* Undo VLAN encapsulation */ |
|
if (eh->h_proto == htons(ETH_P_8021Q)) { |
|
memmove((u8 *)eh + VLAN_HLEN, eh, ETH_ALEN * 2); |
|
eh = (struct ethhdr *)skb_pull(skb, VLAN_HLEN); |
|
skb_reset_mac_header(skb); |
|
} |
|
|
|
/* Filter out non FIP/FCoE frames here to free them faster */ |
|
if (eh->h_proto != htons(ETH_P_ARP) && |
|
eh->h_proto != htons(ETH_P_IP) && |
|
eh->h_proto != htons(ETH_P_IPV6)) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2, |
|
"Dropping frame ethertype [0x%x] len [0x%x].\n", |
|
eh->h_proto, skb->len); |
|
kfree_skb(skb); |
|
return 0; |
|
} |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2, |
|
"Allowed frame ethertype [0x%x] len [0x%x].\n", |
|
eh->h_proto, skb->len); |
|
|
|
work = kzalloc(sizeof(*work), GFP_ATOMIC); |
|
if (!work) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Could not allocate work so dropping frame.\n"); |
|
kfree_skb(skb); |
|
return 0; |
|
} |
|
|
|
INIT_LIST_HEAD(&work->list); |
|
work->skb = skb; |
|
|
|
if (skb_vlan_tag_present(skb)) |
|
work->vlan_id = skb_vlan_tag_get(skb); |
|
|
|
if (work->vlan_id) |
|
__vlan_insert_tag(work->skb, htons(ETH_P_8021Q), work->vlan_id); |
|
|
|
spin_lock_bh(&qedi->ll2_lock); |
|
list_add_tail(&work->list, &qedi->ll2_skb_list); |
|
spin_unlock_bh(&qedi->ll2_lock); |
|
|
|
wake_up_process(qedi->ll2_recv_thread); |
|
|
|
return 0; |
|
} |
|
|
|
/* map this skb to iscsiuio mmaped region */ |
|
static int qedi_ll2_process_skb(struct qedi_ctx *qedi, struct sk_buff *skb, |
|
u16 vlan_id) |
|
{ |
|
struct qedi_uio_dev *udev = NULL; |
|
struct qedi_uio_ctrl *uctrl = NULL; |
|
struct qedi_rx_bd rxbd; |
|
struct qedi_rx_bd *p_rxbd; |
|
u32 rx_bd_prod; |
|
void *pkt; |
|
int len = 0; |
|
u32 prod; |
|
|
|
if (!qedi) { |
|
QEDI_ERR(NULL, "qedi is NULL\n"); |
|
return -1; |
|
} |
|
|
|
udev = qedi->udev; |
|
uctrl = udev->uctrl; |
|
|
|
++uctrl->hw_rx_prod_cnt; |
|
prod = (uctrl->hw_rx_prod + 1) % RX_RING; |
|
|
|
pkt = udev->rx_pkt + (prod * qedi_ll2_buf_size); |
|
len = min_t(u32, skb->len, (u32)qedi_ll2_buf_size); |
|
memcpy(pkt, skb->data, len); |
|
|
|
memset(&rxbd, 0, sizeof(rxbd)); |
|
rxbd.rx_pkt_index = prod; |
|
rxbd.rx_pkt_len = len; |
|
rxbd.vlan_id = vlan_id; |
|
|
|
uctrl->hw_rx_bd_prod = (uctrl->hw_rx_bd_prod + 1) % QEDI_NUM_RX_BD; |
|
rx_bd_prod = uctrl->hw_rx_bd_prod; |
|
p_rxbd = (struct qedi_rx_bd *)udev->ll2_ring; |
|
p_rxbd += rx_bd_prod; |
|
|
|
memcpy(p_rxbd, &rxbd, sizeof(rxbd)); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2, |
|
"hw_rx_prod [%d] prod [%d] hw_rx_bd_prod [%d] rx_pkt_idx [%d] rx_len [%d].\n", |
|
uctrl->hw_rx_prod, prod, uctrl->hw_rx_bd_prod, |
|
rxbd.rx_pkt_index, rxbd.rx_pkt_len); |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_LL2, |
|
"host_rx_cons [%d] hw_rx_bd_cons [%d].\n", |
|
uctrl->host_rx_cons, uctrl->host_rx_bd_cons); |
|
|
|
uctrl->hw_rx_prod = prod; |
|
|
|
/* notify the iscsiuio about new packet */ |
|
uio_event_notify(&udev->qedi_uinfo); |
|
|
|
return 0; |
|
} |
|
|
|
static void qedi_ll2_free_skbs(struct qedi_ctx *qedi) |
|
{ |
|
struct skb_work_list *work, *work_tmp; |
|
|
|
spin_lock_bh(&qedi->ll2_lock); |
|
list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list, list) { |
|
list_del(&work->list); |
|
kfree_skb(work->skb); |
|
kfree(work); |
|
} |
|
spin_unlock_bh(&qedi->ll2_lock); |
|
} |
|
|
|
static int qedi_ll2_recv_thread(void *arg) |
|
{ |
|
struct qedi_ctx *qedi = (struct qedi_ctx *)arg; |
|
struct skb_work_list *work, *work_tmp; |
|
|
|
set_user_nice(current, -20); |
|
|
|
while (!kthread_should_stop()) { |
|
spin_lock_bh(&qedi->ll2_lock); |
|
list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list, |
|
list) { |
|
list_del(&work->list); |
|
qedi_ll2_process_skb(qedi, work->skb, work->vlan_id); |
|
kfree_skb(work->skb); |
|
kfree(work); |
|
} |
|
set_current_state(TASK_INTERRUPTIBLE); |
|
spin_unlock_bh(&qedi->ll2_lock); |
|
schedule(); |
|
} |
|
|
|
__set_current_state(TASK_RUNNING); |
|
return 0; |
|
} |
|
|
|
static int qedi_set_iscsi_pf_param(struct qedi_ctx *qedi) |
|
{ |
|
u8 num_sq_pages; |
|
u32 log_page_size; |
|
int rval = 0; |
|
|
|
|
|
num_sq_pages = (MAX_OUTSTANDING_TASKS_PER_CON * 8) / QEDI_PAGE_SIZE; |
|
|
|
qedi->num_queues = MIN_NUM_CPUS_MSIX(qedi); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Number of CQ count is %d\n", qedi->num_queues); |
|
|
|
memset(&qedi->pf_params.iscsi_pf_params, 0, |
|
sizeof(qedi->pf_params.iscsi_pf_params)); |
|
|
|
qedi->p_cpuq = dma_alloc_coherent(&qedi->pdev->dev, |
|
qedi->num_queues * sizeof(struct qedi_glbl_q_params), |
|
&qedi->hw_p_cpuq, GFP_KERNEL); |
|
if (!qedi->p_cpuq) { |
|
QEDI_ERR(&qedi->dbg_ctx, "dma_alloc_coherent fail\n"); |
|
rval = -1; |
|
goto err_alloc_mem; |
|
} |
|
|
|
rval = qedi_alloc_global_queues(qedi); |
|
if (rval) { |
|
QEDI_ERR(&qedi->dbg_ctx, "Global queue allocation failed.\n"); |
|
rval = -1; |
|
goto err_alloc_mem; |
|
} |
|
|
|
qedi->pf_params.iscsi_pf_params.num_cons = QEDI_MAX_ISCSI_CONNS_PER_HBA; |
|
qedi->pf_params.iscsi_pf_params.num_tasks = QEDI_MAX_ISCSI_TASK; |
|
qedi->pf_params.iscsi_pf_params.half_way_close_timeout = 10; |
|
qedi->pf_params.iscsi_pf_params.num_sq_pages_in_ring = num_sq_pages; |
|
qedi->pf_params.iscsi_pf_params.num_r2tq_pages_in_ring = num_sq_pages; |
|
qedi->pf_params.iscsi_pf_params.num_uhq_pages_in_ring = num_sq_pages; |
|
qedi->pf_params.iscsi_pf_params.num_queues = qedi->num_queues; |
|
qedi->pf_params.iscsi_pf_params.debug_mode = qedi_fw_debug; |
|
qedi->pf_params.iscsi_pf_params.two_msl_timer = 4000; |
|
qedi->pf_params.iscsi_pf_params.max_fin_rt = 2; |
|
|
|
for (log_page_size = 0 ; log_page_size < 32 ; log_page_size++) { |
|
if ((1 << log_page_size) == QEDI_PAGE_SIZE) |
|
break; |
|
} |
|
qedi->pf_params.iscsi_pf_params.log_page_size = log_page_size; |
|
|
|
qedi->pf_params.iscsi_pf_params.glbl_q_params_addr = |
|
(u64)qedi->hw_p_cpuq; |
|
|
|
/* RQ BDQ initializations. |
|
* rq_num_entries: suggested value for Initiator is 16 (4KB RQ) |
|
* rqe_log_size: 8 for 256B RQE |
|
*/ |
|
qedi->pf_params.iscsi_pf_params.rqe_log_size = 8; |
|
/* BDQ address and size */ |
|
qedi->pf_params.iscsi_pf_params.bdq_pbl_base_addr[BDQ_ID_RQ] = |
|
qedi->bdq_pbl_list_dma; |
|
qedi->pf_params.iscsi_pf_params.bdq_pbl_num_entries[BDQ_ID_RQ] = |
|
qedi->bdq_pbl_list_num_entries; |
|
qedi->pf_params.iscsi_pf_params.rq_buffer_size = QEDI_BDQ_BUF_SIZE; |
|
|
|
/* cq_num_entries: num_tasks + rq_num_entries */ |
|
qedi->pf_params.iscsi_pf_params.cq_num_entries = 2048; |
|
|
|
qedi->pf_params.iscsi_pf_params.gl_rq_pi = QEDI_PROTO_CQ_PROD_IDX; |
|
qedi->pf_params.iscsi_pf_params.gl_cmd_pi = 1; |
|
|
|
err_alloc_mem: |
|
return rval; |
|
} |
|
|
|
/* Free DMA coherent memory for array of queue pointers we pass to qed */ |
|
static void qedi_free_iscsi_pf_param(struct qedi_ctx *qedi) |
|
{ |
|
size_t size = 0; |
|
|
|
if (qedi->p_cpuq) { |
|
size = qedi->num_queues * sizeof(struct qedi_glbl_q_params); |
|
dma_free_coherent(&qedi->pdev->dev, size, qedi->p_cpuq, |
|
qedi->hw_p_cpuq); |
|
} |
|
|
|
qedi_free_global_queues(qedi); |
|
|
|
kfree(qedi->global_queues); |
|
} |
|
|
|
static void qedi_get_boot_tgt_info(struct nvm_iscsi_block *block, |
|
struct qedi_boot_target *tgt, u8 index) |
|
{ |
|
u32 ipv6_en; |
|
|
|
ipv6_en = !!(block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_IPV6_ENABLED); |
|
|
|
snprintf(tgt->iscsi_name, sizeof(tgt->iscsi_name), "%s", |
|
block->target[index].target_name.byte); |
|
|
|
tgt->ipv6_en = ipv6_en; |
|
|
|
if (ipv6_en) |
|
snprintf(tgt->ip_addr, IPV6_LEN, "%pI6\n", |
|
block->target[index].ipv6_addr.byte); |
|
else |
|
snprintf(tgt->ip_addr, IPV4_LEN, "%pI4\n", |
|
block->target[index].ipv4_addr.byte); |
|
} |
|
|
|
static int qedi_find_boot_info(struct qedi_ctx *qedi, |
|
struct qed_mfw_tlv_iscsi *iscsi, |
|
struct nvm_iscsi_block *block) |
|
{ |
|
struct qedi_boot_target *pri_tgt = NULL, *sec_tgt = NULL; |
|
u32 pri_ctrl_flags = 0, sec_ctrl_flags = 0, found = 0; |
|
struct iscsi_cls_session *cls_sess; |
|
struct iscsi_cls_conn *cls_conn; |
|
struct qedi_conn *qedi_conn; |
|
struct iscsi_session *sess; |
|
struct iscsi_conn *conn; |
|
char ep_ip_addr[64]; |
|
int i, ret = 0; |
|
|
|
pri_ctrl_flags = !!(block->target[0].ctrl_flags & |
|
NVM_ISCSI_CFG_TARGET_ENABLED); |
|
if (pri_ctrl_flags) { |
|
pri_tgt = kzalloc(sizeof(*pri_tgt), GFP_KERNEL); |
|
if (!pri_tgt) |
|
return -1; |
|
qedi_get_boot_tgt_info(block, pri_tgt, 0); |
|
} |
|
|
|
sec_ctrl_flags = !!(block->target[1].ctrl_flags & |
|
NVM_ISCSI_CFG_TARGET_ENABLED); |
|
if (sec_ctrl_flags) { |
|
sec_tgt = kzalloc(sizeof(*sec_tgt), GFP_KERNEL); |
|
if (!sec_tgt) { |
|
ret = -1; |
|
goto free_tgt; |
|
} |
|
qedi_get_boot_tgt_info(block, sec_tgt, 1); |
|
} |
|
|
|
for (i = 0; i < qedi->max_active_conns; i++) { |
|
qedi_conn = qedi_get_conn_from_id(qedi, i); |
|
if (!qedi_conn) |
|
continue; |
|
|
|
if (qedi_conn->ep->ip_type == TCP_IPV4) |
|
snprintf(ep_ip_addr, IPV4_LEN, "%pI4\n", |
|
qedi_conn->ep->dst_addr); |
|
else |
|
snprintf(ep_ip_addr, IPV6_LEN, "%pI6\n", |
|
qedi_conn->ep->dst_addr); |
|
|
|
cls_conn = qedi_conn->cls_conn; |
|
conn = cls_conn->dd_data; |
|
cls_sess = iscsi_conn_to_session(cls_conn); |
|
sess = cls_sess->dd_data; |
|
|
|
if (!iscsi_is_session_online(cls_sess)) |
|
continue; |
|
|
|
if (!sess->targetname) |
|
continue; |
|
|
|
if (pri_ctrl_flags) { |
|
if (!strcmp(pri_tgt->iscsi_name, sess->targetname) && |
|
!strcmp(pri_tgt->ip_addr, ep_ip_addr)) { |
|
found = 1; |
|
break; |
|
} |
|
} |
|
|
|
if (sec_ctrl_flags) { |
|
if (!strcmp(sec_tgt->iscsi_name, sess->targetname) && |
|
!strcmp(sec_tgt->ip_addr, ep_ip_addr)) { |
|
found = 1; |
|
break; |
|
} |
|
} |
|
} |
|
|
|
if (found) { |
|
if (conn->hdrdgst_en) { |
|
iscsi->header_digest_set = true; |
|
iscsi->header_digest = 1; |
|
} |
|
|
|
if (conn->datadgst_en) { |
|
iscsi->data_digest_set = true; |
|
iscsi->data_digest = 1; |
|
} |
|
iscsi->boot_taget_portal_set = true; |
|
iscsi->boot_taget_portal = sess->tpgt; |
|
|
|
} else { |
|
ret = -1; |
|
} |
|
|
|
if (sec_ctrl_flags) |
|
kfree(sec_tgt); |
|
free_tgt: |
|
if (pri_ctrl_flags) |
|
kfree(pri_tgt); |
|
|
|
return ret; |
|
} |
|
|
|
static void qedi_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data) |
|
{ |
|
struct qedi_ctx *qedi; |
|
|
|
if (!dev) { |
|
QEDI_INFO(NULL, QEDI_LOG_EVT, |
|
"dev is NULL so ignoring get_generic_tlv_data request.\n"); |
|
return; |
|
} |
|
qedi = (struct qedi_ctx *)dev; |
|
|
|
memset(data, 0, sizeof(struct qed_generic_tlvs)); |
|
ether_addr_copy(data->mac[0], qedi->mac); |
|
} |
|
|
|
/* |
|
* Protocol TLV handler |
|
*/ |
|
static void qedi_get_protocol_tlv_data(void *dev, void *data) |
|
{ |
|
struct qed_mfw_tlv_iscsi *iscsi = data; |
|
struct qed_iscsi_stats *fw_iscsi_stats; |
|
struct nvm_iscsi_block *block = NULL; |
|
u32 chap_en = 0, mchap_en = 0; |
|
struct qedi_ctx *qedi = dev; |
|
int rval = 0; |
|
|
|
fw_iscsi_stats = kmalloc(sizeof(*fw_iscsi_stats), GFP_KERNEL); |
|
if (!fw_iscsi_stats) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not allocate memory for fw_iscsi_stats.\n"); |
|
goto exit_get_data; |
|
} |
|
|
|
mutex_lock(&qedi->stats_lock); |
|
/* Query firmware for offload stats */ |
|
qedi_ops->get_stats(qedi->cdev, fw_iscsi_stats); |
|
mutex_unlock(&qedi->stats_lock); |
|
|
|
iscsi->rx_frames_set = true; |
|
iscsi->rx_frames = fw_iscsi_stats->iscsi_rx_packet_cnt; |
|
iscsi->rx_bytes_set = true; |
|
iscsi->rx_bytes = fw_iscsi_stats->iscsi_rx_bytes_cnt; |
|
iscsi->tx_frames_set = true; |
|
iscsi->tx_frames = fw_iscsi_stats->iscsi_tx_packet_cnt; |
|
iscsi->tx_bytes_set = true; |
|
iscsi->tx_bytes = fw_iscsi_stats->iscsi_tx_bytes_cnt; |
|
iscsi->frame_size_set = true; |
|
iscsi->frame_size = qedi->ll2_mtu; |
|
block = qedi_get_nvram_block(qedi); |
|
if (block) { |
|
chap_en = !!(block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_CHAP_ENABLED); |
|
mchap_en = !!(block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED); |
|
|
|
iscsi->auth_method_set = (chap_en || mchap_en) ? true : false; |
|
iscsi->auth_method = 1; |
|
if (chap_en) |
|
iscsi->auth_method = 2; |
|
if (mchap_en) |
|
iscsi->auth_method = 3; |
|
|
|
iscsi->tx_desc_size_set = true; |
|
iscsi->tx_desc_size = QEDI_SQ_SIZE; |
|
iscsi->rx_desc_size_set = true; |
|
iscsi->rx_desc_size = QEDI_CQ_SIZE; |
|
|
|
/* tpgt, hdr digest, data digest */ |
|
rval = qedi_find_boot_info(qedi, iscsi, block); |
|
if (rval) |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Boot target not set"); |
|
} |
|
|
|
kfree(fw_iscsi_stats); |
|
exit_get_data: |
|
return; |
|
} |
|
|
|
void qedi_schedule_hw_err_handler(void *dev, |
|
enum qed_hw_err_type err_type) |
|
{ |
|
struct qedi_ctx *qedi = (struct qedi_ctx *)dev; |
|
unsigned long override_flags = qedi_flags_override; |
|
|
|
if (override_flags && test_bit(QEDI_ERR_OVERRIDE_EN, &override_flags)) |
|
qedi->qedi_err_flags = qedi_flags_override; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"HW error handler scheduled, err=%d err_flags=0x%x\n", |
|
err_type, qedi->qedi_err_flags); |
|
|
|
switch (err_type) { |
|
case QED_HW_ERR_FAN_FAIL: |
|
schedule_delayed_work(&qedi->board_disable_work, 0); |
|
break; |
|
case QED_HW_ERR_MFW_RESP_FAIL: |
|
case QED_HW_ERR_HW_ATTN: |
|
case QED_HW_ERR_DMAE_FAIL: |
|
case QED_HW_ERR_RAMROD_FAIL: |
|
case QED_HW_ERR_FW_ASSERT: |
|
/* Prevent HW attentions from being reasserted */ |
|
if (test_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags)) |
|
qedi_ops->common->attn_clr_enable(qedi->cdev, true); |
|
|
|
if (err_type == QED_HW_ERR_RAMROD_FAIL && |
|
test_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags)) |
|
qedi_ops->common->recovery_process(qedi->cdev); |
|
|
|
break; |
|
default: |
|
break; |
|
} |
|
} |
|
|
|
static void qedi_schedule_recovery_handler(void *dev) |
|
{ |
|
struct qedi_ctx *qedi = dev; |
|
|
|
QEDI_ERR(&qedi->dbg_ctx, "Recovery handler scheduled.\n"); |
|
|
|
if (test_and_set_bit(QEDI_IN_RECOVERY, &qedi->flags)) |
|
return; |
|
|
|
atomic_set(&qedi->link_state, QEDI_LINK_DOWN); |
|
|
|
schedule_delayed_work(&qedi->recovery_work, 0); |
|
} |
|
|
|
static void qedi_set_conn_recovery(struct iscsi_cls_session *cls_session) |
|
{ |
|
struct iscsi_session *session = cls_session->dd_data; |
|
struct iscsi_conn *conn = session->leadconn; |
|
struct qedi_conn *qedi_conn = conn->dd_data; |
|
|
|
qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn); |
|
} |
|
|
|
static void qedi_link_update(void *dev, struct qed_link_output *link) |
|
{ |
|
struct qedi_ctx *qedi = (struct qedi_ctx *)dev; |
|
|
|
if (link->link_up) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Link Up event.\n"); |
|
atomic_set(&qedi->link_state, QEDI_LINK_UP); |
|
} else { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Link Down event.\n"); |
|
atomic_set(&qedi->link_state, QEDI_LINK_DOWN); |
|
iscsi_host_for_each_session(qedi->shost, qedi_set_conn_recovery); |
|
} |
|
} |
|
|
|
static struct qed_iscsi_cb_ops qedi_cb_ops = { |
|
{ |
|
.link_update = qedi_link_update, |
|
.schedule_recovery_handler = qedi_schedule_recovery_handler, |
|
.schedule_hw_err_handler = qedi_schedule_hw_err_handler, |
|
.get_protocol_tlv_data = qedi_get_protocol_tlv_data, |
|
.get_generic_tlv_data = qedi_get_generic_tlv_data, |
|
} |
|
}; |
|
|
|
static int qedi_queue_cqe(struct qedi_ctx *qedi, union iscsi_cqe *cqe, |
|
u16 que_idx, struct qedi_percpu_s *p) |
|
{ |
|
struct qedi_work *qedi_work; |
|
struct qedi_conn *q_conn; |
|
struct qedi_cmd *qedi_cmd; |
|
u32 iscsi_cid; |
|
int rc = 0; |
|
|
|
iscsi_cid = cqe->cqe_common.conn_id; |
|
q_conn = qedi->cid_que.conn_cid_tbl[iscsi_cid]; |
|
if (!q_conn) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Session no longer exists for cid=0x%x!!\n", |
|
iscsi_cid); |
|
return -1; |
|
} |
|
|
|
switch (cqe->cqe_common.cqe_type) { |
|
case ISCSI_CQE_TYPE_SOLICITED: |
|
case ISCSI_CQE_TYPE_SOLICITED_WITH_SENSE: |
|
qedi_cmd = qedi_get_cmd_from_tid(qedi, cqe->cqe_solicited.itid); |
|
if (!qedi_cmd) { |
|
rc = -1; |
|
break; |
|
} |
|
INIT_LIST_HEAD(&qedi_cmd->cqe_work.list); |
|
qedi_cmd->cqe_work.qedi = qedi; |
|
memcpy(&qedi_cmd->cqe_work.cqe, cqe, sizeof(union iscsi_cqe)); |
|
qedi_cmd->cqe_work.que_idx = que_idx; |
|
qedi_cmd->cqe_work.is_solicited = true; |
|
list_add_tail(&qedi_cmd->cqe_work.list, &p->work_list); |
|
break; |
|
case ISCSI_CQE_TYPE_UNSOLICITED: |
|
case ISCSI_CQE_TYPE_DUMMY: |
|
case ISCSI_CQE_TYPE_TASK_CLEANUP: |
|
qedi_work = kzalloc(sizeof(*qedi_work), GFP_ATOMIC); |
|
if (!qedi_work) { |
|
rc = -1; |
|
break; |
|
} |
|
INIT_LIST_HEAD(&qedi_work->list); |
|
qedi_work->qedi = qedi; |
|
memcpy(&qedi_work->cqe, cqe, sizeof(union iscsi_cqe)); |
|
qedi_work->que_idx = que_idx; |
|
qedi_work->is_solicited = false; |
|
list_add_tail(&qedi_work->list, &p->work_list); |
|
break; |
|
default: |
|
rc = -1; |
|
QEDI_ERR(&qedi->dbg_ctx, "FW Error cqe.\n"); |
|
} |
|
return rc; |
|
} |
|
|
|
static bool qedi_process_completions(struct qedi_fastpath *fp) |
|
{ |
|
struct qedi_ctx *qedi = fp->qedi; |
|
struct qed_sb_info *sb_info = fp->sb_info; |
|
struct status_block_e4 *sb = sb_info->sb_virt; |
|
struct qedi_percpu_s *p = NULL; |
|
struct global_queue *que; |
|
u16 prod_idx; |
|
unsigned long flags; |
|
union iscsi_cqe *cqe; |
|
int cpu; |
|
int ret; |
|
|
|
/* Get the current firmware producer index */ |
|
prod_idx = sb->pi_array[QEDI_PROTO_CQ_PROD_IDX]; |
|
|
|
if (prod_idx >= QEDI_CQ_SIZE) |
|
prod_idx = prod_idx % QEDI_CQ_SIZE; |
|
|
|
que = qedi->global_queues[fp->sb_id]; |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO, |
|
"Before: global queue=%p prod_idx=%d cons_idx=%d, sb_id=%d\n", |
|
que, prod_idx, que->cq_cons_idx, fp->sb_id); |
|
|
|
qedi->intr_cpu = fp->sb_id; |
|
cpu = smp_processor_id(); |
|
p = &per_cpu(qedi_percpu, cpu); |
|
|
|
if (unlikely(!p->iothread)) |
|
WARN_ON(1); |
|
|
|
spin_lock_irqsave(&p->p_work_lock, flags); |
|
while (que->cq_cons_idx != prod_idx) { |
|
cqe = &que->cq[que->cq_cons_idx]; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_IO, |
|
"cqe=%p prod_idx=%d cons_idx=%d.\n", |
|
cqe, prod_idx, que->cq_cons_idx); |
|
|
|
ret = qedi_queue_cqe(qedi, cqe, fp->sb_id, p); |
|
if (ret) |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Dropping CQE 0x%x for cid=0x%x.\n", |
|
que->cq_cons_idx, cqe->cqe_common.conn_id); |
|
|
|
que->cq_cons_idx++; |
|
if (que->cq_cons_idx == QEDI_CQ_SIZE) |
|
que->cq_cons_idx = 0; |
|
} |
|
wake_up_process(p->iothread); |
|
spin_unlock_irqrestore(&p->p_work_lock, flags); |
|
|
|
return true; |
|
} |
|
|
|
static bool qedi_fp_has_work(struct qedi_fastpath *fp) |
|
{ |
|
struct qedi_ctx *qedi = fp->qedi; |
|
struct global_queue *que; |
|
struct qed_sb_info *sb_info = fp->sb_info; |
|
struct status_block_e4 *sb = sb_info->sb_virt; |
|
u16 prod_idx; |
|
|
|
barrier(); |
|
|
|
/* Get the current firmware producer index */ |
|
prod_idx = sb->pi_array[QEDI_PROTO_CQ_PROD_IDX]; |
|
|
|
/* Get the pointer to the global CQ this completion is on */ |
|
que = qedi->global_queues[fp->sb_id]; |
|
|
|
/* prod idx wrap around uint16 */ |
|
if (prod_idx >= QEDI_CQ_SIZE) |
|
prod_idx = prod_idx % QEDI_CQ_SIZE; |
|
|
|
return (que->cq_cons_idx != prod_idx); |
|
} |
|
|
|
/* MSI-X fastpath handler code */ |
|
static irqreturn_t qedi_msix_handler(int irq, void *dev_id) |
|
{ |
|
struct qedi_fastpath *fp = dev_id; |
|
struct qedi_ctx *qedi = fp->qedi; |
|
bool wake_io_thread = true; |
|
|
|
qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0); |
|
|
|
process_again: |
|
wake_io_thread = qedi_process_completions(fp); |
|
if (wake_io_thread) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"process already running\n"); |
|
} |
|
|
|
if (!qedi_fp_has_work(fp)) |
|
qed_sb_update_sb_idx(fp->sb_info); |
|
|
|
/* Check for more work */ |
|
rmb(); |
|
|
|
if (!qedi_fp_has_work(fp)) |
|
qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, 1); |
|
else |
|
goto process_again; |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
/* simd handler for MSI/INTa */ |
|
static void qedi_simd_int_handler(void *cookie) |
|
{ |
|
/* Cookie is qedi_ctx struct */ |
|
struct qedi_ctx *qedi = (struct qedi_ctx *)cookie; |
|
|
|
QEDI_WARN(&qedi->dbg_ctx, "qedi=%p.\n", qedi); |
|
} |
|
|
|
#define QEDI_SIMD_HANDLER_NUM 0 |
|
static void qedi_sync_free_irqs(struct qedi_ctx *qedi) |
|
{ |
|
int i; |
|
u16 idx; |
|
|
|
if (qedi->int_info.msix_cnt) { |
|
for (i = 0; i < qedi->int_info.used_cnt; i++) { |
|
idx = i * qedi->dev_info.common.num_hwfns + |
|
qedi_ops->common->get_affin_hwfn_idx(qedi->cdev); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Freeing IRQ #%d vector_idx=%d.\n", i, idx); |
|
|
|
synchronize_irq(qedi->int_info.msix[idx].vector); |
|
irq_set_affinity_hint(qedi->int_info.msix[idx].vector, |
|
NULL); |
|
free_irq(qedi->int_info.msix[idx].vector, |
|
&qedi->fp_array[i]); |
|
} |
|
} else { |
|
qedi_ops->common->simd_handler_clean(qedi->cdev, |
|
QEDI_SIMD_HANDLER_NUM); |
|
} |
|
|
|
qedi->int_info.used_cnt = 0; |
|
qedi_ops->common->set_fp_int(qedi->cdev, 0); |
|
} |
|
|
|
static int qedi_request_msix_irq(struct qedi_ctx *qedi) |
|
{ |
|
int i, rc, cpu; |
|
u16 idx; |
|
|
|
cpu = cpumask_first(cpu_online_mask); |
|
for (i = 0; i < qedi->msix_count; i++) { |
|
idx = i * qedi->dev_info.common.num_hwfns + |
|
qedi_ops->common->get_affin_hwfn_idx(qedi->cdev); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n", |
|
qedi->dev_info.common.num_hwfns, |
|
qedi_ops->common->get_affin_hwfn_idx(qedi->cdev)); |
|
|
|
rc = request_irq(qedi->int_info.msix[idx].vector, |
|
qedi_msix_handler, 0, "qedi", |
|
&qedi->fp_array[i]); |
|
if (rc) { |
|
QEDI_WARN(&qedi->dbg_ctx, "request_irq failed.\n"); |
|
qedi_sync_free_irqs(qedi); |
|
return rc; |
|
} |
|
qedi->int_info.used_cnt++; |
|
rc = irq_set_affinity_hint(qedi->int_info.msix[idx].vector, |
|
get_cpu_mask(cpu)); |
|
cpu = cpumask_next(cpu, cpu_online_mask); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int qedi_setup_int(struct qedi_ctx *qedi) |
|
{ |
|
int rc = 0; |
|
|
|
rc = qedi_ops->common->set_fp_int(qedi->cdev, qedi->num_queues); |
|
if (rc < 0) |
|
goto exit_setup_int; |
|
|
|
qedi->msix_count = rc; |
|
|
|
rc = qedi_ops->common->get_fp_int(qedi->cdev, &qedi->int_info); |
|
if (rc) |
|
goto exit_setup_int; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"Number of msix_cnt = 0x%x num of cpus = 0x%x\n", |
|
qedi->int_info.msix_cnt, num_online_cpus()); |
|
|
|
if (qedi->int_info.msix_cnt) { |
|
rc = qedi_request_msix_irq(qedi); |
|
goto exit_setup_int; |
|
} else { |
|
qedi_ops->common->simd_handler_config(qedi->cdev, &qedi, |
|
QEDI_SIMD_HANDLER_NUM, |
|
qedi_simd_int_handler); |
|
qedi->int_info.used_cnt = 1; |
|
} |
|
|
|
exit_setup_int: |
|
return rc; |
|
} |
|
|
|
static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi) |
|
{ |
|
if (qedi->iscsi_image) |
|
dma_free_coherent(&qedi->pdev->dev, |
|
sizeof(struct qedi_nvm_iscsi_image), |
|
qedi->iscsi_image, qedi->nvm_buf_dma); |
|
} |
|
|
|
static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi) |
|
{ |
|
qedi->iscsi_image = dma_alloc_coherent(&qedi->pdev->dev, |
|
sizeof(struct qedi_nvm_iscsi_image), |
|
&qedi->nvm_buf_dma, GFP_KERNEL); |
|
if (!qedi->iscsi_image) { |
|
QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n"); |
|
return -ENOMEM; |
|
} |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_image, |
|
qedi->nvm_buf_dma); |
|
|
|
return 0; |
|
} |
|
|
|
static void qedi_free_bdq(struct qedi_ctx *qedi) |
|
{ |
|
int i; |
|
|
|
if (qedi->bdq_pbl_list) |
|
dma_free_coherent(&qedi->pdev->dev, QEDI_PAGE_SIZE, |
|
qedi->bdq_pbl_list, qedi->bdq_pbl_list_dma); |
|
|
|
if (qedi->bdq_pbl) |
|
dma_free_coherent(&qedi->pdev->dev, qedi->bdq_pbl_mem_size, |
|
qedi->bdq_pbl, qedi->bdq_pbl_dma); |
|
|
|
for (i = 0; i < QEDI_BDQ_NUM; i++) { |
|
if (qedi->bdq[i].buf_addr) { |
|
dma_free_coherent(&qedi->pdev->dev, QEDI_BDQ_BUF_SIZE, |
|
qedi->bdq[i].buf_addr, |
|
qedi->bdq[i].buf_dma); |
|
} |
|
} |
|
} |
|
|
|
static void qedi_free_global_queues(struct qedi_ctx *qedi) |
|
{ |
|
int i; |
|
struct global_queue **gl = qedi->global_queues; |
|
|
|
for (i = 0; i < qedi->num_queues; i++) { |
|
if (!gl[i]) |
|
continue; |
|
|
|
if (gl[i]->cq) |
|
dma_free_coherent(&qedi->pdev->dev, gl[i]->cq_mem_size, |
|
gl[i]->cq, gl[i]->cq_dma); |
|
if (gl[i]->cq_pbl) |
|
dma_free_coherent(&qedi->pdev->dev, gl[i]->cq_pbl_size, |
|
gl[i]->cq_pbl, gl[i]->cq_pbl_dma); |
|
|
|
kfree(gl[i]); |
|
} |
|
qedi_free_bdq(qedi); |
|
qedi_free_nvm_iscsi_cfg(qedi); |
|
} |
|
|
|
static int qedi_alloc_bdq(struct qedi_ctx *qedi) |
|
{ |
|
int i; |
|
struct scsi_bd *pbl; |
|
u64 *list; |
|
dma_addr_t page; |
|
|
|
/* Alloc dma memory for BDQ buffers */ |
|
for (i = 0; i < QEDI_BDQ_NUM; i++) { |
|
qedi->bdq[i].buf_addr = |
|
dma_alloc_coherent(&qedi->pdev->dev, |
|
QEDI_BDQ_BUF_SIZE, |
|
&qedi->bdq[i].buf_dma, |
|
GFP_KERNEL); |
|
if (!qedi->bdq[i].buf_addr) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not allocate BDQ buffer %d.\n", i); |
|
return -ENOMEM; |
|
} |
|
} |
|
|
|
/* Alloc dma memory for BDQ page buffer list */ |
|
qedi->bdq_pbl_mem_size = QEDI_BDQ_NUM * sizeof(struct scsi_bd); |
|
qedi->bdq_pbl_mem_size = ALIGN(qedi->bdq_pbl_mem_size, QEDI_PAGE_SIZE); |
|
qedi->rq_num_entries = qedi->bdq_pbl_mem_size / sizeof(struct scsi_bd); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, "rq_num_entries = %d.\n", |
|
qedi->rq_num_entries); |
|
|
|
qedi->bdq_pbl = dma_alloc_coherent(&qedi->pdev->dev, |
|
qedi->bdq_pbl_mem_size, |
|
&qedi->bdq_pbl_dma, GFP_KERNEL); |
|
if (!qedi->bdq_pbl) { |
|
QEDI_ERR(&qedi->dbg_ctx, "Could not allocate BDQ PBL.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
/* |
|
* Populate BDQ PBL with physical and virtual address of individual |
|
* BDQ buffers |
|
*/ |
|
pbl = (struct scsi_bd *)qedi->bdq_pbl; |
|
for (i = 0; i < QEDI_BDQ_NUM; i++) { |
|
pbl->address.hi = |
|
cpu_to_le32(QEDI_U64_HI(qedi->bdq[i].buf_dma)); |
|
pbl->address.lo = |
|
cpu_to_le32(QEDI_U64_LO(qedi->bdq[i].buf_dma)); |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, |
|
"pbl [0x%p] pbl->address hi [0x%llx] lo [0x%llx], idx [%d]\n", |
|
pbl, pbl->address.hi, pbl->address.lo, i); |
|
pbl->opaque.iscsi_opaque.reserved_zero[0] = 0; |
|
pbl->opaque.iscsi_opaque.reserved_zero[1] = 0; |
|
pbl->opaque.iscsi_opaque.reserved_zero[2] = 0; |
|
pbl->opaque.iscsi_opaque.opaque = cpu_to_le16(i); |
|
pbl++; |
|
} |
|
|
|
/* Allocate list of PBL pages */ |
|
qedi->bdq_pbl_list = dma_alloc_coherent(&qedi->pdev->dev, |
|
QEDI_PAGE_SIZE, |
|
&qedi->bdq_pbl_list_dma, |
|
GFP_KERNEL); |
|
if (!qedi->bdq_pbl_list) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not allocate list of PBL pages.\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
/* |
|
* Now populate PBL list with pages that contain pointers to the |
|
* individual buffers. |
|
*/ |
|
qedi->bdq_pbl_list_num_entries = qedi->bdq_pbl_mem_size / |
|
QEDI_PAGE_SIZE; |
|
list = (u64 *)qedi->bdq_pbl_list; |
|
page = qedi->bdq_pbl_list_dma; |
|
for (i = 0; i < qedi->bdq_pbl_list_num_entries; i++) { |
|
*list = qedi->bdq_pbl_dma; |
|
list++; |
|
page += QEDI_PAGE_SIZE; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int qedi_alloc_global_queues(struct qedi_ctx *qedi) |
|
{ |
|
u32 *list; |
|
int i; |
|
int status = 0, rc; |
|
u32 *pbl; |
|
dma_addr_t page; |
|
int num_pages; |
|
|
|
/* |
|
* Number of global queues (CQ / RQ). This should |
|
* be <= number of available MSIX vectors for the PF |
|
*/ |
|
if (!qedi->num_queues) { |
|
QEDI_ERR(&qedi->dbg_ctx, "No MSI-X vectors available!\n"); |
|
return 1; |
|
} |
|
|
|
/* Make sure we allocated the PBL that will contain the physical |
|
* addresses of our queues |
|
*/ |
|
if (!qedi->p_cpuq) { |
|
status = 1; |
|
goto mem_alloc_failure; |
|
} |
|
|
|
qedi->global_queues = kzalloc((sizeof(struct global_queue *) * |
|
qedi->num_queues), GFP_KERNEL); |
|
if (!qedi->global_queues) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Unable to allocate global queues array ptr memory\n"); |
|
return -ENOMEM; |
|
} |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"qedi->global_queues=%p.\n", qedi->global_queues); |
|
|
|
/* Allocate DMA coherent buffers for BDQ */ |
|
rc = qedi_alloc_bdq(qedi); |
|
if (rc) |
|
goto mem_alloc_failure; |
|
|
|
/* Allocate DMA coherent buffers for NVM_ISCSI_CFG */ |
|
rc = qedi_alloc_nvm_iscsi_cfg(qedi); |
|
if (rc) |
|
goto mem_alloc_failure; |
|
|
|
/* Allocate a CQ and an associated PBL for each MSI-X |
|
* vector. |
|
*/ |
|
for (i = 0; i < qedi->num_queues; i++) { |
|
qedi->global_queues[i] = |
|
kzalloc(sizeof(*qedi->global_queues[0]), |
|
GFP_KERNEL); |
|
if (!qedi->global_queues[i]) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Unable to allocation global queue %d.\n", i); |
|
status = -ENOMEM; |
|
goto mem_alloc_failure; |
|
} |
|
|
|
qedi->global_queues[i]->cq_mem_size = |
|
(QEDI_CQ_SIZE + 8) * sizeof(union iscsi_cqe); |
|
qedi->global_queues[i]->cq_mem_size = |
|
(qedi->global_queues[i]->cq_mem_size + |
|
(QEDI_PAGE_SIZE - 1)); |
|
|
|
qedi->global_queues[i]->cq_pbl_size = |
|
(qedi->global_queues[i]->cq_mem_size / |
|
QEDI_PAGE_SIZE) * sizeof(void *); |
|
qedi->global_queues[i]->cq_pbl_size = |
|
(qedi->global_queues[i]->cq_pbl_size + |
|
(QEDI_PAGE_SIZE - 1)); |
|
|
|
qedi->global_queues[i]->cq = dma_alloc_coherent(&qedi->pdev->dev, |
|
qedi->global_queues[i]->cq_mem_size, |
|
&qedi->global_queues[i]->cq_dma, |
|
GFP_KERNEL); |
|
|
|
if (!qedi->global_queues[i]->cq) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Could not allocate cq.\n"); |
|
status = -ENOMEM; |
|
goto mem_alloc_failure; |
|
} |
|
qedi->global_queues[i]->cq_pbl = dma_alloc_coherent(&qedi->pdev->dev, |
|
qedi->global_queues[i]->cq_pbl_size, |
|
&qedi->global_queues[i]->cq_pbl_dma, |
|
GFP_KERNEL); |
|
|
|
if (!qedi->global_queues[i]->cq_pbl) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Could not allocate cq PBL.\n"); |
|
status = -ENOMEM; |
|
goto mem_alloc_failure; |
|
} |
|
|
|
/* Create PBL */ |
|
num_pages = qedi->global_queues[i]->cq_mem_size / |
|
QEDI_PAGE_SIZE; |
|
page = qedi->global_queues[i]->cq_dma; |
|
pbl = (u32 *)qedi->global_queues[i]->cq_pbl; |
|
|
|
while (num_pages--) { |
|
*pbl = (u32)page; |
|
pbl++; |
|
*pbl = (u32)((u64)page >> 32); |
|
pbl++; |
|
page += QEDI_PAGE_SIZE; |
|
} |
|
} |
|
|
|
list = (u32 *)qedi->p_cpuq; |
|
|
|
/* |
|
* The list is built as follows: CQ#0 PBL pointer, RQ#0 PBL pointer, |
|
* CQ#1 PBL pointer, RQ#1 PBL pointer, etc. Each PBL pointer points |
|
* to the physical address which contains an array of pointers to the |
|
* physical addresses of the specific queue pages. |
|
*/ |
|
for (i = 0; i < qedi->num_queues; i++) { |
|
*list = (u32)qedi->global_queues[i]->cq_pbl_dma; |
|
list++; |
|
*list = (u32)((u64)qedi->global_queues[i]->cq_pbl_dma >> 32); |
|
list++; |
|
|
|
*list = (u32)0; |
|
list++; |
|
*list = (u32)((u64)0 >> 32); |
|
list++; |
|
} |
|
|
|
return 0; |
|
|
|
mem_alloc_failure: |
|
qedi_free_global_queues(qedi); |
|
return status; |
|
} |
|
|
|
int qedi_alloc_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep) |
|
{ |
|
int rval = 0; |
|
u32 *pbl; |
|
dma_addr_t page; |
|
int num_pages; |
|
|
|
if (!ep) |
|
return -EIO; |
|
|
|
/* Calculate appropriate queue and PBL sizes */ |
|
ep->sq_mem_size = QEDI_SQ_SIZE * sizeof(struct iscsi_wqe); |
|
ep->sq_mem_size += QEDI_PAGE_SIZE - 1; |
|
|
|
ep->sq_pbl_size = (ep->sq_mem_size / QEDI_PAGE_SIZE) * sizeof(void *); |
|
ep->sq_pbl_size = ep->sq_pbl_size + QEDI_PAGE_SIZE; |
|
|
|
ep->sq = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_mem_size, |
|
&ep->sq_dma, GFP_KERNEL); |
|
if (!ep->sq) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Could not allocate send queue.\n"); |
|
rval = -ENOMEM; |
|
goto out; |
|
} |
|
ep->sq_pbl = dma_alloc_coherent(&qedi->pdev->dev, ep->sq_pbl_size, |
|
&ep->sq_pbl_dma, GFP_KERNEL); |
|
if (!ep->sq_pbl) { |
|
QEDI_WARN(&qedi->dbg_ctx, |
|
"Could not allocate send queue PBL.\n"); |
|
rval = -ENOMEM; |
|
goto out_free_sq; |
|
} |
|
|
|
/* Create PBL */ |
|
num_pages = ep->sq_mem_size / QEDI_PAGE_SIZE; |
|
page = ep->sq_dma; |
|
pbl = (u32 *)ep->sq_pbl; |
|
|
|
while (num_pages--) { |
|
*pbl = (u32)page; |
|
pbl++; |
|
*pbl = (u32)((u64)page >> 32); |
|
pbl++; |
|
page += QEDI_PAGE_SIZE; |
|
} |
|
|
|
return rval; |
|
|
|
out_free_sq: |
|
dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq, |
|
ep->sq_dma); |
|
out: |
|
return rval; |
|
} |
|
|
|
void qedi_free_sq(struct qedi_ctx *qedi, struct qedi_endpoint *ep) |
|
{ |
|
if (ep->sq_pbl) |
|
dma_free_coherent(&qedi->pdev->dev, ep->sq_pbl_size, ep->sq_pbl, |
|
ep->sq_pbl_dma); |
|
if (ep->sq) |
|
dma_free_coherent(&qedi->pdev->dev, ep->sq_mem_size, ep->sq, |
|
ep->sq_dma); |
|
} |
|
|
|
int qedi_get_task_idx(struct qedi_ctx *qedi) |
|
{ |
|
s16 tmp_idx; |
|
|
|
again: |
|
tmp_idx = find_first_zero_bit(qedi->task_idx_map, |
|
MAX_ISCSI_TASK_ENTRIES); |
|
|
|
if (tmp_idx >= MAX_ISCSI_TASK_ENTRIES) { |
|
QEDI_ERR(&qedi->dbg_ctx, "FW task context pool is full.\n"); |
|
tmp_idx = -1; |
|
goto err_idx; |
|
} |
|
|
|
if (test_and_set_bit(tmp_idx, qedi->task_idx_map)) |
|
goto again; |
|
|
|
err_idx: |
|
return tmp_idx; |
|
} |
|
|
|
void qedi_clear_task_idx(struct qedi_ctx *qedi, int idx) |
|
{ |
|
if (!test_and_clear_bit(idx, qedi->task_idx_map)) |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"FW task context, already cleared, tid=0x%x\n", idx); |
|
} |
|
|
|
void qedi_update_itt_map(struct qedi_ctx *qedi, u32 tid, u32 proto_itt, |
|
struct qedi_cmd *cmd) |
|
{ |
|
qedi->itt_map[tid].itt = proto_itt; |
|
qedi->itt_map[tid].p_cmd = cmd; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, |
|
"update itt map tid=0x%x, with proto itt=0x%x\n", tid, |
|
qedi->itt_map[tid].itt); |
|
} |
|
|
|
void qedi_get_task_tid(struct qedi_ctx *qedi, u32 itt, s16 *tid) |
|
{ |
|
u16 i; |
|
|
|
for (i = 0; i < MAX_ISCSI_TASK_ENTRIES; i++) { |
|
if (qedi->itt_map[i].itt == itt) { |
|
*tid = i; |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, |
|
"Ref itt=0x%x, found at tid=0x%x\n", |
|
itt, *tid); |
|
return; |
|
} |
|
} |
|
|
|
WARN_ON(1); |
|
} |
|
|
|
void qedi_get_proto_itt(struct qedi_ctx *qedi, u32 tid, u32 *proto_itt) |
|
{ |
|
*proto_itt = qedi->itt_map[tid].itt; |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_CONN, |
|
"Get itt map tid [0x%x with proto itt[0x%x]", |
|
tid, *proto_itt); |
|
} |
|
|
|
struct qedi_cmd *qedi_get_cmd_from_tid(struct qedi_ctx *qedi, u32 tid) |
|
{ |
|
struct qedi_cmd *cmd = NULL; |
|
|
|
if (tid >= MAX_ISCSI_TASK_ENTRIES) |
|
return NULL; |
|
|
|
cmd = qedi->itt_map[tid].p_cmd; |
|
if (cmd->task_id != tid) |
|
return NULL; |
|
|
|
qedi->itt_map[tid].p_cmd = NULL; |
|
|
|
return cmd; |
|
} |
|
|
|
static int qedi_alloc_itt(struct qedi_ctx *qedi) |
|
{ |
|
qedi->itt_map = kcalloc(MAX_ISCSI_TASK_ENTRIES, |
|
sizeof(struct qedi_itt_map), GFP_KERNEL); |
|
if (!qedi->itt_map) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Unable to allocate itt map array memory\n"); |
|
return -ENOMEM; |
|
} |
|
return 0; |
|
} |
|
|
|
static void qedi_free_itt(struct qedi_ctx *qedi) |
|
{ |
|
kfree(qedi->itt_map); |
|
} |
|
|
|
static struct qed_ll2_cb_ops qedi_ll2_cb_ops = { |
|
.rx_cb = qedi_ll2_rx, |
|
.tx_cb = NULL, |
|
}; |
|
|
|
static int qedi_percpu_io_thread(void *arg) |
|
{ |
|
struct qedi_percpu_s *p = arg; |
|
struct qedi_work *work, *tmp; |
|
unsigned long flags; |
|
LIST_HEAD(work_list); |
|
|
|
set_user_nice(current, -20); |
|
|
|
while (!kthread_should_stop()) { |
|
spin_lock_irqsave(&p->p_work_lock, flags); |
|
while (!list_empty(&p->work_list)) { |
|
list_splice_init(&p->work_list, &work_list); |
|
spin_unlock_irqrestore(&p->p_work_lock, flags); |
|
|
|
list_for_each_entry_safe(work, tmp, &work_list, list) { |
|
list_del_init(&work->list); |
|
qedi_fp_process_cqes(work); |
|
if (!work->is_solicited) |
|
kfree(work); |
|
} |
|
cond_resched(); |
|
spin_lock_irqsave(&p->p_work_lock, flags); |
|
} |
|
set_current_state(TASK_INTERRUPTIBLE); |
|
spin_unlock_irqrestore(&p->p_work_lock, flags); |
|
schedule(); |
|
} |
|
__set_current_state(TASK_RUNNING); |
|
|
|
return 0; |
|
} |
|
|
|
static int qedi_cpu_online(unsigned int cpu) |
|
{ |
|
struct qedi_percpu_s *p = this_cpu_ptr(&qedi_percpu); |
|
struct task_struct *thread; |
|
|
|
thread = kthread_create_on_node(qedi_percpu_io_thread, (void *)p, |
|
cpu_to_node(cpu), |
|
"qedi_thread/%d", cpu); |
|
if (IS_ERR(thread)) |
|
return PTR_ERR(thread); |
|
|
|
kthread_bind(thread, cpu); |
|
p->iothread = thread; |
|
wake_up_process(thread); |
|
return 0; |
|
} |
|
|
|
static int qedi_cpu_offline(unsigned int cpu) |
|
{ |
|
struct qedi_percpu_s *p = this_cpu_ptr(&qedi_percpu); |
|
struct qedi_work *work, *tmp; |
|
struct task_struct *thread; |
|
|
|
spin_lock_bh(&p->p_work_lock); |
|
thread = p->iothread; |
|
p->iothread = NULL; |
|
|
|
list_for_each_entry_safe(work, tmp, &p->work_list, list) { |
|
list_del_init(&work->list); |
|
qedi_fp_process_cqes(work); |
|
if (!work->is_solicited) |
|
kfree(work); |
|
} |
|
|
|
spin_unlock_bh(&p->p_work_lock); |
|
if (thread) |
|
kthread_stop(thread); |
|
return 0; |
|
} |
|
|
|
void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu) |
|
{ |
|
struct qed_ll2_params params; |
|
|
|
qedi_recover_all_conns(qedi); |
|
|
|
qedi_ops->ll2->stop(qedi->cdev); |
|
qedi_ll2_free_skbs(qedi); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "old MTU %u, new MTU %u\n", |
|
qedi->ll2_mtu, mtu); |
|
memset(¶ms, 0, sizeof(params)); |
|
qedi->ll2_mtu = mtu; |
|
params.mtu = qedi->ll2_mtu + IPV6_HDR_LEN + TCP_HDR_LEN; |
|
params.drop_ttl0_packets = 0; |
|
params.rx_vlan_stripping = 1; |
|
ether_addr_copy(params.ll2_mac_address, qedi->dev_info.common.hw_mac); |
|
qedi_ops->ll2->start(qedi->cdev, ¶ms); |
|
} |
|
|
|
/* |
|
* qedi_get_nvram_block: - Scan through the iSCSI NVRAM block (while accounting |
|
* for gaps) for the matching absolute-pf-id of the QEDI device. |
|
*/ |
|
static struct nvm_iscsi_block * |
|
qedi_get_nvram_block(struct qedi_ctx *qedi) |
|
{ |
|
int i; |
|
u8 pf; |
|
u32 flags; |
|
struct nvm_iscsi_block *block; |
|
|
|
pf = qedi->dev_info.common.abs_pf_id; |
|
block = &qedi->iscsi_image->iscsi_cfg.block[0]; |
|
for (i = 0; i < NUM_OF_ISCSI_PF_SUPPORTED; i++, block++) { |
|
flags = ((block->id) & NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK) >> |
|
NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET; |
|
if (flags & (NVM_ISCSI_CFG_BLK_CTRL_FLAG_IS_NOT_EMPTY | |
|
NVM_ISCSI_CFG_BLK_CTRL_FLAG_PF_MAPPED) && |
|
(pf == (block->id & NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_MASK) |
|
>> NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_OFFSET)) |
|
return block; |
|
} |
|
return NULL; |
|
} |
|
|
|
static ssize_t qedi_show_boot_eth_info(void *data, int type, char *buf) |
|
{ |
|
struct qedi_ctx *qedi = data; |
|
struct nvm_iscsi_initiator *initiator; |
|
int rc = 1; |
|
u32 ipv6_en, dhcp_en, ip_len; |
|
struct nvm_iscsi_block *block; |
|
char *fmt, *ip, *sub, *gw; |
|
|
|
block = qedi_get_nvram_block(qedi); |
|
if (!block) |
|
return 0; |
|
|
|
initiator = &block->initiator; |
|
ipv6_en = block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_IPV6_ENABLED; |
|
dhcp_en = block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_DHCP_TCPIP_CONFIG_ENABLED; |
|
/* Static IP assignments. */ |
|
fmt = ipv6_en ? "%pI6\n" : "%pI4\n"; |
|
ip = ipv6_en ? initiator->ipv6.addr.byte : initiator->ipv4.addr.byte; |
|
ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN; |
|
sub = ipv6_en ? initiator->ipv6.subnet_mask.byte : |
|
initiator->ipv4.subnet_mask.byte; |
|
gw = ipv6_en ? initiator->ipv6.gateway.byte : |
|
initiator->ipv4.gateway.byte; |
|
/* DHCP IP adjustments. */ |
|
fmt = dhcp_en ? "%s\n" : fmt; |
|
if (dhcp_en) { |
|
ip = ipv6_en ? "0::0" : "0.0.0.0"; |
|
sub = ip; |
|
gw = ip; |
|
ip_len = ipv6_en ? 5 : 8; |
|
} |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_ETH_IP_ADDR: |
|
rc = snprintf(buf, ip_len, fmt, ip); |
|
break; |
|
case ISCSI_BOOT_ETH_SUBNET_MASK: |
|
rc = snprintf(buf, ip_len, fmt, sub); |
|
break; |
|
case ISCSI_BOOT_ETH_GATEWAY: |
|
rc = snprintf(buf, ip_len, fmt, gw); |
|
break; |
|
case ISCSI_BOOT_ETH_FLAGS: |
|
rc = snprintf(buf, 3, "%hhd\n", |
|
SYSFS_FLAG_FW_SEL_BOOT); |
|
break; |
|
case ISCSI_BOOT_ETH_INDEX: |
|
rc = snprintf(buf, 3, "0\n"); |
|
break; |
|
case ISCSI_BOOT_ETH_MAC: |
|
rc = sysfs_format_mac(buf, qedi->mac, ETH_ALEN); |
|
break; |
|
case ISCSI_BOOT_ETH_VLAN: |
|
rc = snprintf(buf, 12, "%d\n", |
|
GET_FIELD2(initiator->generic_cont0, |
|
NVM_ISCSI_CFG_INITIATOR_VLAN)); |
|
break; |
|
case ISCSI_BOOT_ETH_ORIGIN: |
|
if (dhcp_en) |
|
rc = snprintf(buf, 3, "3\n"); |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
|
|
return rc; |
|
} |
|
|
|
static umode_t qedi_eth_get_attr_visibility(void *data, int type) |
|
{ |
|
int rc = 1; |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_ETH_FLAGS: |
|
case ISCSI_BOOT_ETH_MAC: |
|
case ISCSI_BOOT_ETH_INDEX: |
|
case ISCSI_BOOT_ETH_IP_ADDR: |
|
case ISCSI_BOOT_ETH_SUBNET_MASK: |
|
case ISCSI_BOOT_ETH_GATEWAY: |
|
case ISCSI_BOOT_ETH_ORIGIN: |
|
case ISCSI_BOOT_ETH_VLAN: |
|
rc = 0444; |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
return rc; |
|
} |
|
|
|
static ssize_t qedi_show_boot_ini_info(void *data, int type, char *buf) |
|
{ |
|
struct qedi_ctx *qedi = data; |
|
struct nvm_iscsi_initiator *initiator; |
|
int rc; |
|
struct nvm_iscsi_block *block; |
|
|
|
block = qedi_get_nvram_block(qedi); |
|
if (!block) |
|
return 0; |
|
|
|
initiator = &block->initiator; |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_INI_INITIATOR_NAME: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, |
|
initiator->initiator_name.byte); |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
return rc; |
|
} |
|
|
|
static umode_t qedi_ini_get_attr_visibility(void *data, int type) |
|
{ |
|
int rc; |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_INI_INITIATOR_NAME: |
|
rc = 0444; |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
return rc; |
|
} |
|
|
|
static ssize_t |
|
qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type, |
|
char *buf, enum qedi_nvm_tgts idx) |
|
{ |
|
int rc = 1; |
|
u32 ctrl_flags, ipv6_en, chap_en, mchap_en, ip_len; |
|
struct nvm_iscsi_block *block; |
|
char *chap_name, *chap_secret; |
|
char *mchap_name, *mchap_secret; |
|
|
|
block = qedi_get_nvram_block(qedi); |
|
if (!block) |
|
goto exit_show_tgt_info; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT, |
|
"Port:%d, tgt_idx:%d\n", |
|
GET_FIELD2(block->id, NVM_ISCSI_CFG_BLK_MAPPED_PF_ID), idx); |
|
|
|
ctrl_flags = block->target[idx].ctrl_flags & |
|
NVM_ISCSI_CFG_TARGET_ENABLED; |
|
|
|
if (!ctrl_flags) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT, |
|
"Target disabled\n"); |
|
goto exit_show_tgt_info; |
|
} |
|
|
|
ipv6_en = block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_IPV6_ENABLED; |
|
ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN; |
|
chap_en = block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_CHAP_ENABLED; |
|
chap_name = chap_en ? block->initiator.chap_name.byte : NULL; |
|
chap_secret = chap_en ? block->initiator.chap_password.byte : NULL; |
|
|
|
mchap_en = block->generic.ctrl_flags & |
|
NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED; |
|
mchap_name = mchap_en ? block->target[idx].chap_name.byte : NULL; |
|
mchap_secret = mchap_en ? block->target[idx].chap_password.byte : NULL; |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_TGT_NAME: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, |
|
block->target[idx].target_name.byte); |
|
break; |
|
case ISCSI_BOOT_TGT_IP_ADDR: |
|
if (ipv6_en) |
|
rc = snprintf(buf, ip_len, "%pI6\n", |
|
block->target[idx].ipv6_addr.byte); |
|
else |
|
rc = snprintf(buf, ip_len, "%pI4\n", |
|
block->target[idx].ipv4_addr.byte); |
|
break; |
|
case ISCSI_BOOT_TGT_PORT: |
|
rc = snprintf(buf, 12, "%d\n", |
|
GET_FIELD2(block->target[idx].generic_cont0, |
|
NVM_ISCSI_CFG_TARGET_TCP_PORT)); |
|
break; |
|
case ISCSI_BOOT_TGT_LUN: |
|
rc = snprintf(buf, 22, "%.*d\n", |
|
block->target[idx].lun.value[1], |
|
block->target[idx].lun.value[0]); |
|
break; |
|
case ISCSI_BOOT_TGT_CHAP_NAME: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, |
|
chap_name); |
|
break; |
|
case ISCSI_BOOT_TGT_CHAP_SECRET: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, |
|
chap_secret); |
|
break; |
|
case ISCSI_BOOT_TGT_REV_CHAP_NAME: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, |
|
mchap_name); |
|
break; |
|
case ISCSI_BOOT_TGT_REV_CHAP_SECRET: |
|
rc = sprintf(buf, "%.*s\n", NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, |
|
mchap_secret); |
|
break; |
|
case ISCSI_BOOT_TGT_FLAGS: |
|
rc = snprintf(buf, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT); |
|
break; |
|
case ISCSI_BOOT_TGT_NIC_ASSOC: |
|
rc = snprintf(buf, 3, "0\n"); |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
|
|
exit_show_tgt_info: |
|
return rc; |
|
} |
|
|
|
static ssize_t qedi_show_boot_tgt_pri_info(void *data, int type, char *buf) |
|
{ |
|
struct qedi_ctx *qedi = data; |
|
|
|
return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_PRI); |
|
} |
|
|
|
static ssize_t qedi_show_boot_tgt_sec_info(void *data, int type, char *buf) |
|
{ |
|
struct qedi_ctx *qedi = data; |
|
|
|
return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_SEC); |
|
} |
|
|
|
static umode_t qedi_tgt_get_attr_visibility(void *data, int type) |
|
{ |
|
int rc; |
|
|
|
switch (type) { |
|
case ISCSI_BOOT_TGT_NAME: |
|
case ISCSI_BOOT_TGT_IP_ADDR: |
|
case ISCSI_BOOT_TGT_PORT: |
|
case ISCSI_BOOT_TGT_LUN: |
|
case ISCSI_BOOT_TGT_CHAP_NAME: |
|
case ISCSI_BOOT_TGT_CHAP_SECRET: |
|
case ISCSI_BOOT_TGT_REV_CHAP_NAME: |
|
case ISCSI_BOOT_TGT_REV_CHAP_SECRET: |
|
case ISCSI_BOOT_TGT_NIC_ASSOC: |
|
case ISCSI_BOOT_TGT_FLAGS: |
|
rc = 0444; |
|
break; |
|
default: |
|
rc = 0; |
|
break; |
|
} |
|
return rc; |
|
} |
|
|
|
static void qedi_boot_release(void *data) |
|
{ |
|
struct qedi_ctx *qedi = data; |
|
|
|
scsi_host_put(qedi->shost); |
|
} |
|
|
|
static int qedi_get_boot_info(struct qedi_ctx *qedi) |
|
{ |
|
int ret = 1; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Get NVM iSCSI CFG image\n"); |
|
ret = qedi_ops->common->nvm_get_image(qedi->cdev, |
|
QED_NVM_IMAGE_ISCSI_CFG, |
|
(char *)qedi->iscsi_image, |
|
sizeof(struct qedi_nvm_iscsi_image)); |
|
if (ret) |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not get NVM image. ret = %d\n", ret); |
|
|
|
return ret; |
|
} |
|
|
|
static int qedi_setup_boot_info(struct qedi_ctx *qedi) |
|
{ |
|
struct iscsi_boot_kobj *boot_kobj; |
|
|
|
if (qedi_get_boot_info(qedi)) |
|
return -EPERM; |
|
|
|
qedi->boot_kset = iscsi_boot_create_host_kset(qedi->shost->host_no); |
|
if (!qedi->boot_kset) |
|
goto kset_free; |
|
|
|
if (!scsi_host_get(qedi->shost)) |
|
goto kset_free; |
|
|
|
boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 0, qedi, |
|
qedi_show_boot_tgt_pri_info, |
|
qedi_tgt_get_attr_visibility, |
|
qedi_boot_release); |
|
if (!boot_kobj) |
|
goto put_host; |
|
|
|
if (!scsi_host_get(qedi->shost)) |
|
goto kset_free; |
|
|
|
boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 1, qedi, |
|
qedi_show_boot_tgt_sec_info, |
|
qedi_tgt_get_attr_visibility, |
|
qedi_boot_release); |
|
if (!boot_kobj) |
|
goto put_host; |
|
|
|
if (!scsi_host_get(qedi->shost)) |
|
goto kset_free; |
|
|
|
boot_kobj = iscsi_boot_create_initiator(qedi->boot_kset, 0, qedi, |
|
qedi_show_boot_ini_info, |
|
qedi_ini_get_attr_visibility, |
|
qedi_boot_release); |
|
if (!boot_kobj) |
|
goto put_host; |
|
|
|
if (!scsi_host_get(qedi->shost)) |
|
goto kset_free; |
|
|
|
boot_kobj = iscsi_boot_create_ethernet(qedi->boot_kset, 0, qedi, |
|
qedi_show_boot_eth_info, |
|
qedi_eth_get_attr_visibility, |
|
qedi_boot_release); |
|
if (!boot_kobj) |
|
goto put_host; |
|
|
|
return 0; |
|
|
|
put_host: |
|
scsi_host_put(qedi->shost); |
|
kset_free: |
|
iscsi_boot_destroy_kset(qedi->boot_kset); |
|
return -ENOMEM; |
|
} |
|
|
|
static pci_ers_result_t qedi_io_error_detected(struct pci_dev *pdev, |
|
pci_channel_state_t state) |
|
{ |
|
struct qedi_ctx *qedi = pci_get_drvdata(pdev); |
|
|
|
QEDI_ERR(&qedi->dbg_ctx, "%s: PCI error detected [%d]\n", |
|
__func__, state); |
|
|
|
if (test_and_set_bit(QEDI_IN_RECOVERY, &qedi->flags)) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Recovery already in progress.\n"); |
|
return PCI_ERS_RESULT_NONE; |
|
} |
|
|
|
qedi_ops->common->recovery_process(qedi->cdev); |
|
|
|
return PCI_ERS_RESULT_CAN_RECOVER; |
|
} |
|
|
|
static void __qedi_remove(struct pci_dev *pdev, int mode) |
|
{ |
|
struct qedi_ctx *qedi = pci_get_drvdata(pdev); |
|
int rval; |
|
u16 retry = 10; |
|
|
|
if (mode == QEDI_MODE_SHUTDOWN) |
|
iscsi_host_for_each_session(qedi->shost, |
|
qedi_clear_session_ctx); |
|
|
|
if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) { |
|
if (qedi->tmf_thread) { |
|
flush_workqueue(qedi->tmf_thread); |
|
destroy_workqueue(qedi->tmf_thread); |
|
qedi->tmf_thread = NULL; |
|
} |
|
|
|
if (qedi->offload_thread) { |
|
flush_workqueue(qedi->offload_thread); |
|
destroy_workqueue(qedi->offload_thread); |
|
qedi->offload_thread = NULL; |
|
} |
|
} |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_host_exit(&qedi->dbg_ctx); |
|
#endif |
|
if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) |
|
qedi_ops->common->set_power_state(qedi->cdev, PCI_D0); |
|
|
|
qedi_sync_free_irqs(qedi); |
|
|
|
if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) { |
|
while (retry--) { |
|
rval = qedi_ops->stop(qedi->cdev); |
|
if (rval < 0) |
|
msleep(1000); |
|
else |
|
break; |
|
} |
|
qedi_ops->ll2->stop(qedi->cdev); |
|
} |
|
|
|
qedi_free_iscsi_pf_param(qedi); |
|
|
|
rval = qedi_ops->common->update_drv_state(qedi->cdev, false); |
|
if (rval) |
|
QEDI_ERR(&qedi->dbg_ctx, "Failed to send drv state to MFW\n"); |
|
|
|
if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) { |
|
qedi_ops->common->slowpath_stop(qedi->cdev); |
|
qedi_ops->common->remove(qedi->cdev); |
|
} |
|
|
|
qedi_destroy_fp(qedi); |
|
|
|
if (mode == QEDI_MODE_NORMAL || mode == QEDI_MODE_SHUTDOWN) { |
|
qedi_release_cid_que(qedi); |
|
qedi_cm_free_mem(qedi); |
|
qedi_free_uio(qedi->udev); |
|
qedi_free_itt(qedi); |
|
|
|
if (qedi->ll2_recv_thread) { |
|
kthread_stop(qedi->ll2_recv_thread); |
|
qedi->ll2_recv_thread = NULL; |
|
} |
|
qedi_ll2_free_skbs(qedi); |
|
|
|
if (qedi->boot_kset) |
|
iscsi_boot_destroy_kset(qedi->boot_kset); |
|
|
|
iscsi_host_remove(qedi->shost); |
|
iscsi_host_free(qedi->shost); |
|
} |
|
} |
|
|
|
static void qedi_board_disable_work(struct work_struct *work) |
|
{ |
|
struct qedi_ctx *qedi = |
|
container_of(work, struct qedi_ctx, |
|
board_disable_work.work); |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Fan failure, Unloading firmware context.\n"); |
|
|
|
if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags)) |
|
return; |
|
|
|
__qedi_remove(qedi->pdev, QEDI_MODE_SHUTDOWN); |
|
} |
|
|
|
static void qedi_shutdown(struct pci_dev *pdev) |
|
{ |
|
struct qedi_ctx *qedi = pci_get_drvdata(pdev); |
|
|
|
QEDI_ERR(&qedi->dbg_ctx, "%s: Shutdown qedi\n", __func__); |
|
if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags)) |
|
return; |
|
__qedi_remove(pdev, QEDI_MODE_SHUTDOWN); |
|
} |
|
|
|
static int __qedi_probe(struct pci_dev *pdev, int mode) |
|
{ |
|
struct qedi_ctx *qedi; |
|
struct qed_ll2_params params; |
|
u8 dp_level = 0; |
|
bool is_vf = false; |
|
char host_buf[16]; |
|
struct qed_link_params link_params; |
|
struct qed_slowpath_params sp_params; |
|
struct qed_probe_params qed_params; |
|
void *task_start, *task_end; |
|
int rc; |
|
u16 retry = 10; |
|
|
|
if (mode != QEDI_MODE_RECOVERY) { |
|
qedi = qedi_host_alloc(pdev); |
|
if (!qedi) { |
|
rc = -ENOMEM; |
|
goto exit_probe; |
|
} |
|
} else { |
|
qedi = pci_get_drvdata(pdev); |
|
} |
|
|
|
retry_probe: |
|
if (mode == QEDI_MODE_RECOVERY) |
|
msleep(2000); |
|
|
|
memset(&qed_params, 0, sizeof(qed_params)); |
|
qed_params.protocol = QED_PROTOCOL_ISCSI; |
|
qed_params.dp_module = qedi_qed_debug; |
|
qed_params.dp_level = dp_level; |
|
qed_params.is_vf = is_vf; |
|
qedi->cdev = qedi_ops->common->probe(pdev, &qed_params); |
|
if (!qedi->cdev) { |
|
if (mode == QEDI_MODE_RECOVERY && retry) { |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"Retry %d initialize hardware\n", retry); |
|
retry--; |
|
goto retry_probe; |
|
} |
|
|
|
rc = -ENODEV; |
|
QEDI_ERR(&qedi->dbg_ctx, "Cannot initialize hardware\n"); |
|
goto free_host; |
|
} |
|
|
|
set_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags); |
|
set_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags); |
|
atomic_set(&qedi->link_state, QEDI_LINK_DOWN); |
|
|
|
rc = qedi_ops->fill_dev_info(qedi->cdev, &qedi->dev_info); |
|
if (rc) |
|
goto free_host; |
|
|
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"dev_info: num_hwfns=%d affin_hwfn_idx=%d.\n", |
|
qedi->dev_info.common.num_hwfns, |
|
qedi_ops->common->get_affin_hwfn_idx(qedi->cdev)); |
|
|
|
rc = qedi_set_iscsi_pf_param(qedi); |
|
if (rc) { |
|
rc = -ENOMEM; |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Set iSCSI pf param fail\n"); |
|
goto free_host; |
|
} |
|
|
|
qedi_ops->common->update_pf_params(qedi->cdev, &qedi->pf_params); |
|
|
|
rc = qedi_prepare_fp(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, "Cannot start slowpath.\n"); |
|
goto free_pf_params; |
|
} |
|
|
|
/* Start the Slowpath-process */ |
|
memset(&sp_params, 0, sizeof(struct qed_slowpath_params)); |
|
sp_params.int_mode = QED_INT_MODE_MSIX; |
|
sp_params.drv_major = QEDI_DRIVER_MAJOR_VER; |
|
sp_params.drv_minor = QEDI_DRIVER_MINOR_VER; |
|
sp_params.drv_rev = QEDI_DRIVER_REV_VER; |
|
sp_params.drv_eng = QEDI_DRIVER_ENG_VER; |
|
strlcpy(sp_params.name, "qedi iSCSI", QED_DRV_VER_STR_SIZE); |
|
rc = qedi_ops->common->slowpath_start(qedi->cdev, &sp_params); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, "Cannot start slowpath\n"); |
|
goto stop_hw; |
|
} |
|
|
|
/* update_pf_params needs to be called before and after slowpath |
|
* start |
|
*/ |
|
qedi_ops->common->update_pf_params(qedi->cdev, &qedi->pf_params); |
|
|
|
rc = qedi_setup_int(qedi); |
|
if (rc) |
|
goto stop_iscsi_func; |
|
|
|
qedi_ops->common->set_power_state(qedi->cdev, PCI_D0); |
|
|
|
/* Learn information crucial for qedi to progress */ |
|
rc = qedi_ops->fill_dev_info(qedi->cdev, &qedi->dev_info); |
|
if (rc) |
|
goto stop_iscsi_func; |
|
|
|
/* Record BDQ producer doorbell addresses */ |
|
qedi->bdq_primary_prod = qedi->dev_info.primary_dbq_rq_addr; |
|
qedi->bdq_secondary_prod = qedi->dev_info.secondary_bdq_rq_addr; |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"BDQ primary_prod=%p secondary_prod=%p.\n", |
|
qedi->bdq_primary_prod, |
|
qedi->bdq_secondary_prod); |
|
|
|
/* |
|
* We need to write the number of BDs in the BDQ we've preallocated so |
|
* the f/w will do a prefetch and we'll get an unsolicited CQE when a |
|
* packet arrives. |
|
*/ |
|
qedi->bdq_prod_idx = QEDI_BDQ_NUM; |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"Writing %d to primary and secondary BDQ doorbell registers.\n", |
|
qedi->bdq_prod_idx); |
|
writew(qedi->bdq_prod_idx, qedi->bdq_primary_prod); |
|
readw(qedi->bdq_primary_prod); |
|
writew(qedi->bdq_prod_idx, qedi->bdq_secondary_prod); |
|
readw(qedi->bdq_secondary_prod); |
|
|
|
ether_addr_copy(qedi->mac, qedi->dev_info.common.hw_mac); |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, "MAC address is %pM.\n", |
|
qedi->mac); |
|
|
|
snprintf(host_buf, sizeof(host_buf), "host_%d", qedi->shost->host_no); |
|
qedi_ops->common->set_name(qedi->cdev, host_buf); |
|
|
|
qedi_ops->register_ops(qedi->cdev, &qedi_cb_ops, qedi); |
|
|
|
memset(¶ms, 0, sizeof(params)); |
|
params.mtu = DEF_PATH_MTU + IPV6_HDR_LEN + TCP_HDR_LEN; |
|
qedi->ll2_mtu = DEF_PATH_MTU; |
|
params.drop_ttl0_packets = 0; |
|
params.rx_vlan_stripping = 1; |
|
ether_addr_copy(params.ll2_mac_address, qedi->dev_info.common.hw_mac); |
|
|
|
if (mode != QEDI_MODE_RECOVERY) { |
|
/* set up rx path */ |
|
INIT_LIST_HEAD(&qedi->ll2_skb_list); |
|
spin_lock_init(&qedi->ll2_lock); |
|
/* start qedi context */ |
|
spin_lock_init(&qedi->hba_lock); |
|
spin_lock_init(&qedi->task_idx_lock); |
|
mutex_init(&qedi->stats_lock); |
|
} |
|
qedi_ops->ll2->register_cb_ops(qedi->cdev, &qedi_ll2_cb_ops, qedi); |
|
qedi_ops->ll2->start(qedi->cdev, ¶ms); |
|
|
|
if (mode != QEDI_MODE_RECOVERY) { |
|
qedi->ll2_recv_thread = kthread_run(qedi_ll2_recv_thread, |
|
(void *)qedi, |
|
"qedi_ll2_thread"); |
|
} |
|
|
|
rc = qedi_ops->start(qedi->cdev, &qedi->tasks, |
|
qedi, qedi_iscsi_event_cb); |
|
if (rc) { |
|
rc = -ENODEV; |
|
QEDI_ERR(&qedi->dbg_ctx, "Cannot start iSCSI function\n"); |
|
goto stop_slowpath; |
|
} |
|
|
|
task_start = qedi_get_task_mem(&qedi->tasks, 0); |
|
task_end = qedi_get_task_mem(&qedi->tasks, MAX_TID_BLOCKS_ISCSI - 1); |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, |
|
"Task context start=%p, end=%p block_size=%u.\n", |
|
task_start, task_end, qedi->tasks.size); |
|
|
|
memset(&link_params, 0, sizeof(link_params)); |
|
link_params.link_up = true; |
|
rc = qedi_ops->common->set_link(qedi->cdev, &link_params); |
|
if (rc) { |
|
QEDI_WARN(&qedi->dbg_ctx, "Link set up failed.\n"); |
|
atomic_set(&qedi->link_state, QEDI_LINK_DOWN); |
|
} |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_host_init(&qedi->dbg_ctx, qedi_debugfs_ops, |
|
qedi_dbg_fops); |
|
#endif |
|
QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, |
|
"QLogic FastLinQ iSCSI Module qedi %s, FW %d.%d.%d.%d\n", |
|
QEDI_MODULE_VERSION, FW_MAJOR_VERSION, FW_MINOR_VERSION, |
|
FW_REVISION_VERSION, FW_ENGINEERING_VERSION); |
|
|
|
if (mode == QEDI_MODE_NORMAL) { |
|
if (iscsi_host_add(qedi->shost, &pdev->dev)) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not add iscsi host\n"); |
|
rc = -ENOMEM; |
|
goto remove_host; |
|
} |
|
|
|
/* Allocate uio buffers */ |
|
rc = qedi_alloc_uio_rings(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"UIO alloc ring failed err=%d\n", rc); |
|
goto remove_host; |
|
} |
|
|
|
rc = qedi_init_uio(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"UIO init failed, err=%d\n", rc); |
|
goto free_uio; |
|
} |
|
|
|
/* host the array on iscsi_conn */ |
|
rc = qedi_setup_cid_que(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not setup cid que\n"); |
|
goto free_uio; |
|
} |
|
|
|
rc = qedi_cm_alloc_mem(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not alloc cm memory\n"); |
|
goto free_cid_que; |
|
} |
|
|
|
rc = qedi_alloc_itt(qedi); |
|
if (rc) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Could not alloc itt memory\n"); |
|
goto free_cid_que; |
|
} |
|
|
|
sprintf(host_buf, "host_%d", qedi->shost->host_no); |
|
qedi->tmf_thread = create_singlethread_workqueue(host_buf); |
|
if (!qedi->tmf_thread) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Unable to start tmf thread!\n"); |
|
rc = -ENODEV; |
|
goto free_cid_que; |
|
} |
|
|
|
sprintf(host_buf, "qedi_ofld%d", qedi->shost->host_no); |
|
qedi->offload_thread = create_workqueue(host_buf); |
|
if (!qedi->offload_thread) { |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Unable to start offload thread!\n"); |
|
rc = -ENODEV; |
|
goto free_tmf_thread; |
|
} |
|
|
|
INIT_DELAYED_WORK(&qedi->recovery_work, qedi_recovery_handler); |
|
INIT_DELAYED_WORK(&qedi->board_disable_work, |
|
qedi_board_disable_work); |
|
|
|
/* F/w needs 1st task context memory entry for performance */ |
|
set_bit(QEDI_RESERVE_TASK_ID, qedi->task_idx_map); |
|
atomic_set(&qedi->num_offloads, 0); |
|
|
|
if (qedi_setup_boot_info(qedi)) |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"No iSCSI boot target configured\n"); |
|
|
|
rc = qedi_ops->common->update_drv_state(qedi->cdev, true); |
|
if (rc) |
|
QEDI_ERR(&qedi->dbg_ctx, |
|
"Failed to send drv state to MFW\n"); |
|
|
|
} |
|
|
|
return 0; |
|
|
|
free_tmf_thread: |
|
destroy_workqueue(qedi->tmf_thread); |
|
free_cid_que: |
|
qedi_release_cid_que(qedi); |
|
free_uio: |
|
qedi_free_uio(qedi->udev); |
|
remove_host: |
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_host_exit(&qedi->dbg_ctx); |
|
#endif |
|
iscsi_host_remove(qedi->shost); |
|
stop_iscsi_func: |
|
qedi_ops->stop(qedi->cdev); |
|
stop_slowpath: |
|
qedi_ops->common->slowpath_stop(qedi->cdev); |
|
stop_hw: |
|
qedi_ops->common->remove(qedi->cdev); |
|
free_pf_params: |
|
qedi_free_iscsi_pf_param(qedi); |
|
free_host: |
|
iscsi_host_free(qedi->shost); |
|
exit_probe: |
|
return rc; |
|
} |
|
|
|
static void qedi_mark_conn_recovery(struct iscsi_cls_session *cls_session) |
|
{ |
|
struct iscsi_session *session = cls_session->dd_data; |
|
struct iscsi_conn *conn = session->leadconn; |
|
struct qedi_conn *qedi_conn = conn->dd_data; |
|
|
|
iscsi_conn_failure(qedi_conn->cls_conn->dd_data, ISCSI_ERR_CONN_FAILED); |
|
} |
|
|
|
static void qedi_recovery_handler(struct work_struct *work) |
|
{ |
|
struct qedi_ctx *qedi = |
|
container_of(work, struct qedi_ctx, recovery_work.work); |
|
|
|
iscsi_host_for_each_session(qedi->shost, qedi_mark_conn_recovery); |
|
|
|
/* Call common_ops->recovery_prolog to allow the MFW to quiesce |
|
* any PCI transactions. |
|
*/ |
|
qedi_ops->common->recovery_prolog(qedi->cdev); |
|
|
|
__qedi_remove(qedi->pdev, QEDI_MODE_RECOVERY); |
|
__qedi_probe(qedi->pdev, QEDI_MODE_RECOVERY); |
|
clear_bit(QEDI_IN_RECOVERY, &qedi->flags); |
|
} |
|
|
|
static int qedi_probe(struct pci_dev *pdev, const struct pci_device_id *id) |
|
{ |
|
return __qedi_probe(pdev, QEDI_MODE_NORMAL); |
|
} |
|
|
|
static void qedi_remove(struct pci_dev *pdev) |
|
{ |
|
__qedi_remove(pdev, QEDI_MODE_NORMAL); |
|
} |
|
|
|
static struct pci_device_id qedi_pci_tbl[] = { |
|
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x165E) }, |
|
{ PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, 0x8084) }, |
|
{ 0 }, |
|
}; |
|
MODULE_DEVICE_TABLE(pci, qedi_pci_tbl); |
|
|
|
static enum cpuhp_state qedi_cpuhp_state; |
|
|
|
static struct pci_error_handlers qedi_err_handler = { |
|
.error_detected = qedi_io_error_detected, |
|
}; |
|
|
|
static struct pci_driver qedi_pci_driver = { |
|
.name = QEDI_MODULE_NAME, |
|
.id_table = qedi_pci_tbl, |
|
.probe = qedi_probe, |
|
.remove = qedi_remove, |
|
.shutdown = qedi_shutdown, |
|
.err_handler = &qedi_err_handler, |
|
}; |
|
|
|
static int __init qedi_init(void) |
|
{ |
|
struct qedi_percpu_s *p; |
|
int cpu, rc = 0; |
|
|
|
qedi_ops = qed_get_iscsi_ops(); |
|
if (!qedi_ops) { |
|
QEDI_ERR(NULL, "Failed to get qed iSCSI operations\n"); |
|
return -EINVAL; |
|
} |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_init("qedi"); |
|
#endif |
|
|
|
qedi_scsi_transport = iscsi_register_transport(&qedi_iscsi_transport); |
|
if (!qedi_scsi_transport) { |
|
QEDI_ERR(NULL, "Could not register qedi transport"); |
|
rc = -ENOMEM; |
|
goto exit_qedi_init_1; |
|
} |
|
|
|
for_each_possible_cpu(cpu) { |
|
p = &per_cpu(qedi_percpu, cpu); |
|
INIT_LIST_HEAD(&p->work_list); |
|
spin_lock_init(&p->p_work_lock); |
|
p->iothread = NULL; |
|
} |
|
|
|
rc = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "scsi/qedi:online", |
|
qedi_cpu_online, qedi_cpu_offline); |
|
if (rc < 0) |
|
goto exit_qedi_init_2; |
|
qedi_cpuhp_state = rc; |
|
|
|
rc = pci_register_driver(&qedi_pci_driver); |
|
if (rc) { |
|
QEDI_ERR(NULL, "Failed to register driver\n"); |
|
goto exit_qedi_hp; |
|
} |
|
|
|
return 0; |
|
|
|
exit_qedi_hp: |
|
cpuhp_remove_state(qedi_cpuhp_state); |
|
exit_qedi_init_2: |
|
iscsi_unregister_transport(&qedi_iscsi_transport); |
|
exit_qedi_init_1: |
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_exit(); |
|
#endif |
|
qed_put_iscsi_ops(); |
|
return rc; |
|
} |
|
|
|
static void __exit qedi_cleanup(void) |
|
{ |
|
pci_unregister_driver(&qedi_pci_driver); |
|
cpuhp_remove_state(qedi_cpuhp_state); |
|
iscsi_unregister_transport(&qedi_iscsi_transport); |
|
|
|
#ifdef CONFIG_DEBUG_FS |
|
qedi_dbg_exit(); |
|
#endif |
|
qed_put_iscsi_ops(); |
|
} |
|
|
|
MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx iSCSI Module"); |
|
MODULE_LICENSE("GPL"); |
|
MODULE_AUTHOR("QLogic Corporation"); |
|
MODULE_VERSION(QEDI_MODULE_VERSION); |
|
module_init(qedi_init); |
|
module_exit(qedi_cleanup);
|
|
|