1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
// SPDX-License-Identifier: GPL-2.0
/* Copyright(c) 2020 Pensando Systems, Inc */
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/firmware.h>
#include "ionic.h"
#include "ionic_dev.h"
#include "ionic_lif.h"
#include "ionic_devlink.h"
/* The worst case wait for the install activity is about 25 minutes when
* installing a new CPLD, which is very seldom. Normal is about 30-35
* seconds. Since the driver can't tell if a CPLD update will happen we
* set the timeout for the ugly case.
*/
#define IONIC_FW_INSTALL_TIMEOUT (25 * 60)
#define IONIC_FW_SELECT_TIMEOUT 30
/* Number of periodic log updates during fw file download */
#define IONIC_FW_INTERVAL_FRACTION 32
static void ionic_dev_cmd_firmware_download(struct ionic_dev *idev, u64 addr,
u32 offset, u32 length)
{
union ionic_dev_cmd cmd = {
.fw_download.opcode = IONIC_CMD_FW_DOWNLOAD,
.fw_download.offset = cpu_to_le32(offset),
.fw_download.addr = cpu_to_le64(addr),
.fw_download.length = cpu_to_le32(length),
};
ionic_dev_cmd_go(idev, &cmd);
}
static void ionic_dev_cmd_firmware_install(struct ionic_dev *idev)
{
union ionic_dev_cmd cmd = {
.fw_control.opcode = IONIC_CMD_FW_CONTROL,
.fw_control.oper = IONIC_FW_INSTALL_ASYNC
};
ionic_dev_cmd_go(idev, &cmd);
}
static void ionic_dev_cmd_firmware_activate(struct ionic_dev *idev, u8 slot)
{
union ionic_dev_cmd cmd = {
.fw_control.opcode = IONIC_CMD_FW_CONTROL,
.fw_control.oper = IONIC_FW_ACTIVATE_ASYNC,
.fw_control.slot = slot
};
ionic_dev_cmd_go(idev, &cmd);
}
static int ionic_fw_status_long_wait(struct ionic *ionic,
const char *label,
unsigned long timeout,
u8 fw_cmd,
struct netlink_ext_ack *extack)
{
union ionic_dev_cmd cmd = {
.fw_control.opcode = IONIC_CMD_FW_CONTROL,
.fw_control.oper = fw_cmd,
};
unsigned long start_time;
unsigned long end_time;
int err;
start_time = jiffies;
end_time = start_time + (timeout * HZ);
do {
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_go(&ionic->idev, &cmd);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
msleep(20);
} while (time_before(jiffies, end_time) && (err == -EAGAIN || err == -ETIMEDOUT));
if (err == -EAGAIN || err == -ETIMEDOUT) {
NL_SET_ERR_MSG_MOD(extack, "Firmware wait timed out");
dev_err(ionic->dev, "DEV_CMD firmware wait %s timed out\n", label);
} else if (err) {
NL_SET_ERR_MSG_MOD(extack, "Firmware wait failed");
}
return err;
}
int ionic_firmware_update(struct ionic_lif *lif, const struct firmware *fw,
struct netlink_ext_ack *extack)
{
struct ionic_dev *idev = &lif->ionic->idev;
struct net_device *netdev = lif->netdev;
struct ionic *ionic = lif->ionic;
union ionic_dev_cmd_comp comp;
u32 buf_sz, copy_sz, offset;
struct devlink *dl;
int next_interval;
int err = 0;
u8 fw_slot;
netdev_info(netdev, "Installing firmware\n");
dl = priv_to_devlink(ionic);
devlink_flash_update_status_notify(dl, "Preparing to flash", NULL, 0, 0);
buf_sz = sizeof(idev->dev_cmd_regs->data);
netdev_dbg(netdev,
"downloading firmware - size %d part_sz %d nparts %lu\n",
(int)fw->size, buf_sz, DIV_ROUND_UP(fw->size, buf_sz));
offset = 0;
next_interval = 0;
while (offset < fw->size) {
if (offset >= next_interval) {
devlink_flash_update_status_notify(dl, "Downloading", NULL,
offset, fw->size);
next_interval = offset + (fw->size / IONIC_FW_INTERVAL_FRACTION);
}
copy_sz = min_t(unsigned int, buf_sz, fw->size - offset);
mutex_lock(&ionic->dev_cmd_lock);
memcpy_toio(&idev->dev_cmd_regs->data, fw->data + offset, copy_sz);
ionic_dev_cmd_firmware_download(idev,
offsetof(union ionic_dev_cmd_regs, data),
offset, copy_sz);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
if (err) {
netdev_err(netdev,
"download failed offset 0x%x addr 0x%lx len 0x%x\n",
offset, offsetof(union ionic_dev_cmd_regs, data),
copy_sz);
NL_SET_ERR_MSG_MOD(extack, "Segment download failed");
goto err_out;
}
offset += copy_sz;
}
devlink_flash_update_status_notify(dl, "Downloading", NULL,
fw->size, fw->size);
devlink_flash_update_timeout_notify(dl, "Installing", NULL,
IONIC_FW_INSTALL_TIMEOUT);
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_firmware_install(idev);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
ionic_dev_cmd_comp(idev, (union ionic_dev_cmd_comp *)&comp);
fw_slot = comp.fw_control.slot;
mutex_unlock(&ionic->dev_cmd_lock);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Failed to start firmware install");
goto err_out;
}
err = ionic_fw_status_long_wait(ionic, "Installing",
IONIC_FW_INSTALL_TIMEOUT,
IONIC_FW_INSTALL_STATUS,
extack);
if (err)
goto err_out;
devlink_flash_update_timeout_notify(dl, "Selecting", NULL,
IONIC_FW_SELECT_TIMEOUT);
mutex_lock(&ionic->dev_cmd_lock);
ionic_dev_cmd_firmware_activate(idev, fw_slot);
err = ionic_dev_cmd_wait(ionic, DEVCMD_TIMEOUT);
mutex_unlock(&ionic->dev_cmd_lock);
if (err) {
NL_SET_ERR_MSG_MOD(extack, "Failed to start firmware select");
goto err_out;
}
err = ionic_fw_status_long_wait(ionic, "Selecting",
IONIC_FW_SELECT_TIMEOUT,
IONIC_FW_ACTIVATE_STATUS,
extack);
if (err)
goto err_out;
netdev_info(netdev, "Firmware update completed\n");
err_out:
if (err)
devlink_flash_update_status_notify(dl, "Flash failed", NULL, 0, 0);
else
devlink_flash_update_status_notify(dl, "Flash done", NULL, 0, 0);
return err;
}
|
