702 lines
17 KiB
C
702 lines
17 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */
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#include <linux/printk.h>
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#include <linux/dynamic_debug.h>
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#include <linux/module.h>
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#include <linux/netdevice.h>
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#include <linux/utsname.h>
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#include <generated/utsrelease.h>
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#include <linux/ctype.h>
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#include "ionic.h"
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#include "ionic_bus.h"
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#include "ionic_lif.h"
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#include "ionic_debugfs.h"
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MODULE_DESCRIPTION(IONIC_DRV_DESCRIPTION);
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MODULE_AUTHOR("Pensando Systems, Inc");
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MODULE_LICENSE("GPL");
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static const char *ionic_error_to_str(enum ionic_status_code code)
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{
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switch (code) {
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case IONIC_RC_SUCCESS:
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return "IONIC_RC_SUCCESS";
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case IONIC_RC_EVERSION:
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return "IONIC_RC_EVERSION";
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case IONIC_RC_EOPCODE:
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return "IONIC_RC_EOPCODE";
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case IONIC_RC_EIO:
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return "IONIC_RC_EIO";
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case IONIC_RC_EPERM:
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return "IONIC_RC_EPERM";
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case IONIC_RC_EQID:
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return "IONIC_RC_EQID";
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case IONIC_RC_EQTYPE:
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return "IONIC_RC_EQTYPE";
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case IONIC_RC_ENOENT:
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return "IONIC_RC_ENOENT";
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case IONIC_RC_EINTR:
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return "IONIC_RC_EINTR";
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case IONIC_RC_EAGAIN:
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return "IONIC_RC_EAGAIN";
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case IONIC_RC_ENOMEM:
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return "IONIC_RC_ENOMEM";
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case IONIC_RC_EFAULT:
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return "IONIC_RC_EFAULT";
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case IONIC_RC_EBUSY:
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return "IONIC_RC_EBUSY";
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case IONIC_RC_EEXIST:
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return "IONIC_RC_EEXIST";
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case IONIC_RC_EINVAL:
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return "IONIC_RC_EINVAL";
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case IONIC_RC_ENOSPC:
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return "IONIC_RC_ENOSPC";
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case IONIC_RC_ERANGE:
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return "IONIC_RC_ERANGE";
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case IONIC_RC_BAD_ADDR:
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return "IONIC_RC_BAD_ADDR";
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case IONIC_RC_DEV_CMD:
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return "IONIC_RC_DEV_CMD";
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case IONIC_RC_ENOSUPP:
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return "IONIC_RC_ENOSUPP";
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case IONIC_RC_ERROR:
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return "IONIC_RC_ERROR";
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case IONIC_RC_ERDMA:
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return "IONIC_RC_ERDMA";
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case IONIC_RC_EBAD_FW:
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return "IONIC_RC_EBAD_FW";
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default:
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return "IONIC_RC_UNKNOWN";
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}
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}
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static int ionic_error_to_errno(enum ionic_status_code code)
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{
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switch (code) {
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case IONIC_RC_SUCCESS:
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return 0;
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case IONIC_RC_EVERSION:
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case IONIC_RC_EQTYPE:
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case IONIC_RC_EQID:
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case IONIC_RC_EINVAL:
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case IONIC_RC_ENOSUPP:
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return -EINVAL;
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case IONIC_RC_EPERM:
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return -EPERM;
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case IONIC_RC_ENOENT:
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return -ENOENT;
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case IONIC_RC_EAGAIN:
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return -EAGAIN;
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case IONIC_RC_ENOMEM:
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return -ENOMEM;
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case IONIC_RC_EFAULT:
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return -EFAULT;
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case IONIC_RC_EBUSY:
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return -EBUSY;
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case IONIC_RC_EEXIST:
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return -EEXIST;
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case IONIC_RC_ENOSPC:
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return -ENOSPC;
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case IONIC_RC_ERANGE:
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return -ERANGE;
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case IONIC_RC_BAD_ADDR:
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return -EFAULT;
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case IONIC_RC_EOPCODE:
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case IONIC_RC_EINTR:
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case IONIC_RC_DEV_CMD:
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case IONIC_RC_ERROR:
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case IONIC_RC_ERDMA:
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case IONIC_RC_EIO:
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default:
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return -EIO;
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}
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}
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static const char *ionic_opcode_to_str(enum ionic_cmd_opcode opcode)
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{
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switch (opcode) {
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case IONIC_CMD_NOP:
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return "IONIC_CMD_NOP";
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case IONIC_CMD_INIT:
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return "IONIC_CMD_INIT";
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case IONIC_CMD_RESET:
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return "IONIC_CMD_RESET";
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case IONIC_CMD_IDENTIFY:
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return "IONIC_CMD_IDENTIFY";
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case IONIC_CMD_GETATTR:
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return "IONIC_CMD_GETATTR";
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case IONIC_CMD_SETATTR:
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return "IONIC_CMD_SETATTR";
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case IONIC_CMD_PORT_IDENTIFY:
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return "IONIC_CMD_PORT_IDENTIFY";
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case IONIC_CMD_PORT_INIT:
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return "IONIC_CMD_PORT_INIT";
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case IONIC_CMD_PORT_RESET:
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return "IONIC_CMD_PORT_RESET";
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case IONIC_CMD_PORT_GETATTR:
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return "IONIC_CMD_PORT_GETATTR";
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case IONIC_CMD_PORT_SETATTR:
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return "IONIC_CMD_PORT_SETATTR";
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case IONIC_CMD_LIF_INIT:
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return "IONIC_CMD_LIF_INIT";
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case IONIC_CMD_LIF_RESET:
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return "IONIC_CMD_LIF_RESET";
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case IONIC_CMD_LIF_IDENTIFY:
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return "IONIC_CMD_LIF_IDENTIFY";
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case IONIC_CMD_LIF_SETATTR:
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return "IONIC_CMD_LIF_SETATTR";
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case IONIC_CMD_LIF_GETATTR:
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return "IONIC_CMD_LIF_GETATTR";
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case IONIC_CMD_LIF_SETPHC:
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return "IONIC_CMD_LIF_SETPHC";
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case IONIC_CMD_RX_MODE_SET:
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return "IONIC_CMD_RX_MODE_SET";
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case IONIC_CMD_RX_FILTER_ADD:
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return "IONIC_CMD_RX_FILTER_ADD";
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case IONIC_CMD_RX_FILTER_DEL:
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return "IONIC_CMD_RX_FILTER_DEL";
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case IONIC_CMD_Q_IDENTIFY:
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return "IONIC_CMD_Q_IDENTIFY";
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case IONIC_CMD_Q_INIT:
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return "IONIC_CMD_Q_INIT";
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case IONIC_CMD_Q_CONTROL:
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return "IONIC_CMD_Q_CONTROL";
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case IONIC_CMD_RDMA_RESET_LIF:
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return "IONIC_CMD_RDMA_RESET_LIF";
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case IONIC_CMD_RDMA_CREATE_EQ:
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return "IONIC_CMD_RDMA_CREATE_EQ";
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case IONIC_CMD_RDMA_CREATE_CQ:
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return "IONIC_CMD_RDMA_CREATE_CQ";
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case IONIC_CMD_RDMA_CREATE_ADMINQ:
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return "IONIC_CMD_RDMA_CREATE_ADMINQ";
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case IONIC_CMD_FW_DOWNLOAD:
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return "IONIC_CMD_FW_DOWNLOAD";
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case IONIC_CMD_FW_CONTROL:
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return "IONIC_CMD_FW_CONTROL";
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case IONIC_CMD_FW_DOWNLOAD_V1:
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return "IONIC_CMD_FW_DOWNLOAD_V1";
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case IONIC_CMD_FW_CONTROL_V1:
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return "IONIC_CMD_FW_CONTROL_V1";
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case IONIC_CMD_VF_GETATTR:
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return "IONIC_CMD_VF_GETATTR";
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case IONIC_CMD_VF_SETATTR:
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return "IONIC_CMD_VF_SETATTR";
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default:
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return "DEVCMD_UNKNOWN";
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}
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}
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const char *ionic_vf_attr_to_str(enum ionic_vf_attr attr)
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{
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switch (attr) {
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case IONIC_VF_ATTR_SPOOFCHK:
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return "IONIC_VF_ATTR_SPOOFCHK";
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case IONIC_VF_ATTR_TRUST:
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return "IONIC_VF_ATTR_TRUST";
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case IONIC_VF_ATTR_LINKSTATE:
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return "IONIC_VF_ATTR_LINKSTATE";
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case IONIC_VF_ATTR_MAC:
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return "IONIC_VF_ATTR_MAC";
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case IONIC_VF_ATTR_VLAN:
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return "IONIC_VF_ATTR_VLAN";
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case IONIC_VF_ATTR_RATE:
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return "IONIC_VF_ATTR_RATE";
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case IONIC_VF_ATTR_STATSADDR:
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return "IONIC_VF_ATTR_STATSADDR";
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default:
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return "IONIC_VF_ATTR_UNKNOWN";
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}
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}
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static void ionic_adminq_flush(struct ionic_lif *lif)
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{
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struct ionic_desc_info *desc_info;
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unsigned long irqflags;
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struct ionic_queue *q;
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spin_lock_irqsave(&lif->adminq_lock, irqflags);
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if (!lif->adminqcq) {
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spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
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return;
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}
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q = &lif->adminqcq->q;
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while (q->tail_idx != q->head_idx) {
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desc_info = &q->info[q->tail_idx];
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memset(desc_info->desc, 0, sizeof(union ionic_adminq_cmd));
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desc_info->cb = NULL;
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desc_info->cb_arg = NULL;
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q->tail_idx = (q->tail_idx + 1) & (q->num_descs - 1);
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}
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spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
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}
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void ionic_adminq_netdev_err_print(struct ionic_lif *lif, u8 opcode,
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u8 status, int err)
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{
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const char *stat_str;
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stat_str = (err == -ETIMEDOUT) ? "TIMEOUT" :
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ionic_error_to_str(status);
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netdev_err(lif->netdev, "%s (%d) failed: %s (%d)\n",
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ionic_opcode_to_str(opcode), opcode, stat_str, err);
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}
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static int ionic_adminq_check_err(struct ionic_lif *lif,
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struct ionic_admin_ctx *ctx,
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const bool timeout,
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const bool do_msg)
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{
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int err = 0;
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if (ctx->comp.comp.status || timeout) {
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err = timeout ? -ETIMEDOUT :
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ionic_error_to_errno(ctx->comp.comp.status);
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if (do_msg)
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ionic_adminq_netdev_err_print(lif, ctx->cmd.cmd.opcode,
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ctx->comp.comp.status, err);
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if (timeout)
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ionic_adminq_flush(lif);
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}
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return err;
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}
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static void ionic_adminq_cb(struct ionic_queue *q,
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struct ionic_desc_info *desc_info,
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struct ionic_cq_info *cq_info, void *cb_arg)
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{
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struct ionic_admin_ctx *ctx = cb_arg;
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struct ionic_admin_comp *comp;
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if (!ctx)
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return;
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comp = cq_info->cq_desc;
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memcpy(&ctx->comp, comp, sizeof(*comp));
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dev_dbg(q->dev, "comp admin queue command:\n");
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dynamic_hex_dump("comp ", DUMP_PREFIX_OFFSET, 16, 1,
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&ctx->comp, sizeof(ctx->comp), true);
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complete_all(&ctx->work);
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}
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int ionic_adminq_post(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
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{
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struct ionic_desc_info *desc_info;
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unsigned long irqflags;
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struct ionic_queue *q;
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int err = 0;
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spin_lock_irqsave(&lif->adminq_lock, irqflags);
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if (!lif->adminqcq) {
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spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
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return -EIO;
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}
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q = &lif->adminqcq->q;
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if (!ionic_q_has_space(q, 1)) {
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err = -ENOSPC;
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goto err_out;
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}
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err = ionic_heartbeat_check(lif->ionic);
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if (err)
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goto err_out;
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desc_info = &q->info[q->head_idx];
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memcpy(desc_info->desc, &ctx->cmd, sizeof(ctx->cmd));
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dev_dbg(&lif->netdev->dev, "post admin queue command:\n");
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dynamic_hex_dump("cmd ", DUMP_PREFIX_OFFSET, 16, 1,
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&ctx->cmd, sizeof(ctx->cmd), true);
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ionic_q_post(q, true, ionic_adminq_cb, ctx);
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err_out:
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spin_unlock_irqrestore(&lif->adminq_lock, irqflags);
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return err;
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}
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int ionic_adminq_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx,
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const int err, const bool do_msg)
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{
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struct net_device *netdev = lif->netdev;
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unsigned long time_limit;
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unsigned long time_start;
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unsigned long time_done;
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unsigned long remaining;
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const char *name;
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name = ionic_opcode_to_str(ctx->cmd.cmd.opcode);
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if (err) {
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if (do_msg && !test_bit(IONIC_LIF_F_FW_RESET, lif->state))
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netdev_err(netdev, "Posting of %s (%d) failed: %d\n",
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name, ctx->cmd.cmd.opcode, err);
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ctx->comp.comp.status = IONIC_RC_ERROR;
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return err;
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}
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time_start = jiffies;
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time_limit = time_start + HZ * (ulong)DEVCMD_TIMEOUT;
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do {
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remaining = wait_for_completion_timeout(&ctx->work,
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IONIC_ADMINQ_TIME_SLICE);
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/* check for done */
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if (remaining)
|
||
|
|
break;
|
||
|
|
|
||
|
|
/* force a check of FW status and break out if FW reset */
|
||
|
|
(void)ionic_heartbeat_check(lif->ionic);
|
||
|
|
if ((test_bit(IONIC_LIF_F_FW_RESET, lif->state) &&
|
||
|
|
!lif->ionic->idev.fw_status_ready) ||
|
||
|
|
test_bit(IONIC_LIF_F_FW_STOPPING, lif->state)) {
|
||
|
|
if (do_msg)
|
||
|
|
netdev_warn(netdev, "%s (%d) interrupted, FW in reset\n",
|
||
|
|
name, ctx->cmd.cmd.opcode);
|
||
|
|
ctx->comp.comp.status = IONIC_RC_ERROR;
|
||
|
|
return -ENXIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
} while (time_before(jiffies, time_limit));
|
||
|
|
time_done = jiffies;
|
||
|
|
|
||
|
|
dev_dbg(lif->ionic->dev, "%s: elapsed %d msecs\n",
|
||
|
|
__func__, jiffies_to_msecs(time_done - time_start));
|
||
|
|
|
||
|
|
return ionic_adminq_check_err(lif, ctx,
|
||
|
|
time_after_eq(time_done, time_limit),
|
||
|
|
do_msg);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_adminq_post_wait(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = ionic_adminq_post(lif, ctx);
|
||
|
|
|
||
|
|
return ionic_adminq_wait(lif, ctx, err, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_adminq_post_wait_nomsg(struct ionic_lif *lif, struct ionic_admin_ctx *ctx)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = ionic_adminq_post(lif, ctx);
|
||
|
|
|
||
|
|
return ionic_adminq_wait(lif, ctx, err, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ionic_dev_cmd_clean(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
|
||
|
|
iowrite32(0, &idev->dev_cmd_regs->doorbell);
|
||
|
|
memset_io(&idev->dev_cmd_regs->cmd, 0, sizeof(idev->dev_cmd_regs->cmd));
|
||
|
|
}
|
||
|
|
|
||
|
|
void ionic_dev_cmd_dev_err_print(struct ionic *ionic, u8 opcode, u8 status,
|
||
|
|
int err)
|
||
|
|
{
|
||
|
|
const char *stat_str;
|
||
|
|
|
||
|
|
stat_str = (err == -ETIMEDOUT) ? "TIMEOUT" :
|
||
|
|
ionic_error_to_str(status);
|
||
|
|
|
||
|
|
dev_err(ionic->dev, "DEV_CMD %s (%d) error, %s (%d) failed\n",
|
||
|
|
ionic_opcode_to_str(opcode), opcode, stat_str, err);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds,
|
||
|
|
const bool do_msg)
|
||
|
|
{
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
unsigned long start_time;
|
||
|
|
unsigned long max_wait;
|
||
|
|
unsigned long duration;
|
||
|
|
int done = 0;
|
||
|
|
bool fw_up;
|
||
|
|
int opcode;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
/* Wait for dev cmd to complete, retrying if we get EAGAIN,
|
||
|
|
* but don't wait any longer than max_seconds.
|
||
|
|
*/
|
||
|
|
max_wait = jiffies + (max_seconds * HZ);
|
||
|
|
try_again:
|
||
|
|
opcode = readb(&idev->dev_cmd_regs->cmd.cmd.opcode);
|
||
|
|
start_time = jiffies;
|
||
|
|
for (fw_up = ionic_is_fw_running(idev);
|
||
|
|
!done && fw_up && time_before(jiffies, max_wait);
|
||
|
|
fw_up = ionic_is_fw_running(idev)) {
|
||
|
|
done = ionic_dev_cmd_done(idev);
|
||
|
|
if (done)
|
||
|
|
break;
|
||
|
|
usleep_range(100, 200);
|
||
|
|
}
|
||
|
|
duration = jiffies - start_time;
|
||
|
|
|
||
|
|
dev_dbg(ionic->dev, "DEVCMD %s (%d) done=%d took %ld secs (%ld jiffies)\n",
|
||
|
|
ionic_opcode_to_str(opcode), opcode,
|
||
|
|
done, duration / HZ, duration);
|
||
|
|
|
||
|
|
if (!done && !fw_up) {
|
||
|
|
ionic_dev_cmd_clean(ionic);
|
||
|
|
dev_warn(ionic->dev, "DEVCMD %s (%d) interrupted - FW is down\n",
|
||
|
|
ionic_opcode_to_str(opcode), opcode);
|
||
|
|
return -ENXIO;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!done && !time_before(jiffies, max_wait)) {
|
||
|
|
ionic_dev_cmd_clean(ionic);
|
||
|
|
dev_warn(ionic->dev, "DEVCMD %s (%d) timeout after %ld secs\n",
|
||
|
|
ionic_opcode_to_str(opcode), opcode, max_seconds);
|
||
|
|
return -ETIMEDOUT;
|
||
|
|
}
|
||
|
|
|
||
|
|
err = ionic_dev_cmd_status(&ionic->idev);
|
||
|
|
if (err) {
|
||
|
|
if (err == IONIC_RC_EAGAIN &&
|
||
|
|
time_before(jiffies, (max_wait - HZ))) {
|
||
|
|
dev_dbg(ionic->dev, "DEV_CMD %s (%d), %s (%d) retrying...\n",
|
||
|
|
ionic_opcode_to_str(opcode), opcode,
|
||
|
|
ionic_error_to_str(err), err);
|
||
|
|
|
||
|
|
msleep(1000);
|
||
|
|
iowrite32(0, &idev->dev_cmd_regs->done);
|
||
|
|
iowrite32(1, &idev->dev_cmd_regs->doorbell);
|
||
|
|
goto try_again;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!(opcode == IONIC_CMD_FW_CONTROL && err == IONIC_RC_EAGAIN))
|
||
|
|
if (do_msg)
|
||
|
|
ionic_dev_cmd_dev_err_print(ionic, opcode, err,
|
||
|
|
ionic_error_to_errno(err));
|
||
|
|
|
||
|
|
return ionic_error_to_errno(err);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_dev_cmd_wait(struct ionic *ionic, unsigned long max_seconds)
|
||
|
|
{
|
||
|
|
return __ionic_dev_cmd_wait(ionic, max_seconds, true);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_dev_cmd_wait_nomsg(struct ionic *ionic, unsigned long max_seconds)
|
||
|
|
{
|
||
|
|
return __ionic_dev_cmd_wait(ionic, max_seconds, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_setup(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
err = ionic_dev_setup(ionic);
|
||
|
|
if (err)
|
||
|
|
return err;
|
||
|
|
ionic_reset(ionic);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_identify(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_identity *ident = &ionic->ident;
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
size_t sz;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
memset(ident, 0, sizeof(*ident));
|
||
|
|
|
||
|
|
ident->drv.os_type = cpu_to_le32(IONIC_OS_TYPE_LINUX);
|
||
|
|
strncpy(ident->drv.driver_ver_str, UTS_RELEASE,
|
||
|
|
sizeof(ident->drv.driver_ver_str) - 1);
|
||
|
|
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
sz = min(sizeof(ident->drv), sizeof(idev->dev_cmd_regs->data));
|
||
|
|
memcpy_toio(&idev->dev_cmd_regs->data, &ident->drv, sz);
|
||
|
|
|
||
|
|
ionic_dev_cmd_identify(idev, IONIC_IDENTITY_VERSION_1);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
if (!err) {
|
||
|
|
sz = min(sizeof(ident->dev), sizeof(idev->dev_cmd_regs->data));
|
||
|
|
memcpy_fromio(&ident->dev, &idev->dev_cmd_regs->data, sz);
|
||
|
|
}
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
if (err) {
|
||
|
|
dev_err(ionic->dev, "Cannot identify ionic: %d\n", err);
|
||
|
|
goto err_out;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (isprint(idev->dev_info.fw_version[0]) &&
|
||
|
|
isascii(idev->dev_info.fw_version[0]))
|
||
|
|
dev_info(ionic->dev, "FW: %.*s\n",
|
||
|
|
(int)(sizeof(idev->dev_info.fw_version) - 1),
|
||
|
|
idev->dev_info.fw_version);
|
||
|
|
else
|
||
|
|
dev_info(ionic->dev, "FW: (invalid string) 0x%02x 0x%02x 0x%02x 0x%02x ...\n",
|
||
|
|
(u8)idev->dev_info.fw_version[0],
|
||
|
|
(u8)idev->dev_info.fw_version[1],
|
||
|
|
(u8)idev->dev_info.fw_version[2],
|
||
|
|
(u8)idev->dev_info.fw_version[3]);
|
||
|
|
|
||
|
|
err = ionic_lif_identify(ionic, IONIC_LIF_TYPE_CLASSIC,
|
||
|
|
&ionic->ident.lif);
|
||
|
|
if (err) {
|
||
|
|
dev_err(ionic->dev, "Cannot identify LIFs: %d\n", err);
|
||
|
|
goto err_out;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
err_out:
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_init(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
ionic_dev_cmd_init(idev);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_reset(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!ionic_is_fw_running(idev))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
ionic_dev_cmd_reset(idev);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_port_identify(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_identity *ident = &ionic->ident;
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
size_t sz;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
ionic_dev_cmd_port_identify(idev);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
if (!err) {
|
||
|
|
sz = min(sizeof(ident->port), sizeof(idev->dev_cmd_regs->data));
|
||
|
|
memcpy_fromio(&ident->port, &idev->dev_cmd_regs->data, sz);
|
||
|
|
}
|
||
|
|
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_port_init(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_identity *ident = &ionic->ident;
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
size_t sz;
|
||
|
|
int err;
|
||
|
|
|
||
|
|
if (!idev->port_info) {
|
||
|
|
idev->port_info_sz = ALIGN(sizeof(*idev->port_info), PAGE_SIZE);
|
||
|
|
idev->port_info = dma_alloc_coherent(ionic->dev,
|
||
|
|
idev->port_info_sz,
|
||
|
|
&idev->port_info_pa,
|
||
|
|
GFP_KERNEL);
|
||
|
|
if (!idev->port_info)
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
sz = min(sizeof(ident->port.config), sizeof(idev->dev_cmd_regs->data));
|
||
|
|
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
|
||
|
|
memcpy_toio(&idev->dev_cmd_regs->data, &ident->port.config, sz);
|
||
|
|
ionic_dev_cmd_port_init(idev);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
|
||
|
|
ionic_dev_cmd_port_state(&ionic->idev, IONIC_PORT_ADMIN_STATE_UP);
|
||
|
|
(void)ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
if (err) {
|
||
|
|
dev_err(ionic->dev, "Failed to init port\n");
|
||
|
|
dma_free_coherent(ionic->dev, idev->port_info_sz,
|
||
|
|
idev->port_info, idev->port_info_pa);
|
||
|
|
idev->port_info = NULL;
|
||
|
|
idev->port_info_pa = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ionic_port_reset(struct ionic *ionic)
|
||
|
|
{
|
||
|
|
struct ionic_dev *idev = &ionic->idev;
|
||
|
|
int err = 0;
|
||
|
|
|
||
|
|
if (!idev->port_info)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (ionic_is_fw_running(idev)) {
|
||
|
|
mutex_lock(&ionic->dev_cmd_lock);
|
||
|
|
ionic_dev_cmd_port_reset(idev);
|
||
|
|
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
|
||
|
|
mutex_unlock(&ionic->dev_cmd_lock);
|
||
|
|
}
|
||
|
|
|
||
|
|
dma_free_coherent(ionic->dev, idev->port_info_sz,
|
||
|
|
idev->port_info, idev->port_info_pa);
|
||
|
|
|
||
|
|
idev->port_info = NULL;
|
||
|
|
idev->port_info_pa = 0;
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __init ionic_init_module(void)
|
||
|
|
{
|
||
|
|
ionic_debugfs_create();
|
||
|
|
return ionic_bus_register_driver();
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __exit ionic_cleanup_module(void)
|
||
|
|
{
|
||
|
|
ionic_bus_unregister_driver();
|
||
|
|
ionic_debugfs_destroy();
|
||
|
|
|
||
|
|
pr_info("%s removed\n", IONIC_DRV_NAME);
|
||
|
|
}
|
||
|
|
|
||
|
|
module_init(ionic_init_module);
|
||
|
|
module_exit(ionic_cleanup_module);
|