The code that sets up the i2400m (firmware load and general driver setup after it) includes a couple of retry loops.
The SDIO device sometimes can get in more complicated corners than the USB one (due to its interaction with other SDIO functions), that require trying a few more times. To solve that, without having a failing USB device taking longer to be considered dead, allow the retry counts to be specified by the bus-specific driver, which the general driver takes as a parameter. Signed-off-by: Inaky Perez-Gonzalez <[email protected]> --- drivers/net/wimax/i2400m/driver.c | 2 +- drivers/net/wimax/i2400m/fw.c | 2 +- drivers/net/wimax/i2400m/i2400m.h | 14 ++++++++++++++ drivers/net/wimax/i2400m/sdio.c | 3 +++ drivers/net/wimax/i2400m/usb.c | 1 + 5 files changed, 20 insertions(+), 2 deletions(-) diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index e8d022d..8d8628e 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -399,7 +399,7 @@ int __i2400m_dev_start(struct i2400m *i2400m, enum i2400m_bri flags) struct wimax_dev *wimax_dev = &i2400m->wimax_dev; struct net_device *net_dev = wimax_dev->net_dev; struct device *dev = i2400m_dev(i2400m); - int times = 3; + int times = i2400m->bus_bm_retries; d_fnstart(3, dev, "(i2400m %p)\n", i2400m); retry: diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c index 01c926e..c48fa24 100644 --- a/drivers/net/wimax/i2400m/fw.c +++ b/drivers/net/wimax/i2400m/fw.c @@ -980,7 +980,7 @@ int i2400m_fw_dnload(struct i2400m *i2400m, const struct i2400m_bcf_hdr *bcf, { int ret = 0; struct device *dev = i2400m_dev(i2400m); - int count = I2400M_BOOT_RETRIES; + int count = i2400m->bus_bm_retries; d_fnstart(5, dev, "(i2400m %p bcf %p size %zu)\n", i2400m, bcf, bcf_size); diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h index 8dba246..59cd783 100644 --- a/drivers/net/wimax/i2400m/i2400m.h +++ b/drivers/net/wimax/i2400m/i2400m.h @@ -150,6 +150,7 @@ enum { /* Firmware uploading */ I2400M_BOOT_RETRIES = 3, + I3200_BOOT_RETRIES = 3, /* Size of the Boot Mode Command buffer */ I2400M_BM_CMD_BUF_SIZE = 16 * 1024, I2400M_BM_ACK_BUF_SIZE = 256, @@ -224,6 +225,17 @@ struct i2400m_roq; * process, so it cannot rely on common infrastructure being laid * out. * + * @bus_bm_retries: [fill] How many times shall a firmware upload / + * device initialization be retried? Different models of the same + * device might need different values, hence it is set by the + * bus-specific driver. Note this value is used in two places, + * i2400m_fw_dnload() and __i2400m_dev_start(); they won't become + * multiplicative (__i2400m_dev_start() calling N times + * i2400m_fw_dnload() and this trying N times to download the + * firmware), as if __i2400m_dev_start() only retries if the + * firmware crashed while initializing the device (not in a + * general case). + * * @bus_bm_cmd_send: [fill] Function called to send a boot-mode * command. Flags are defined in 'enum i2400m_bm_cmd_flags'. This * is synchronous and has to return 0 if ok or < 0 errno code in @@ -399,6 +411,8 @@ struct i2400m { size_t bus_tx_block_size; size_t bus_pl_size_max; + unsigned bus_bm_retries; + int (*bus_dev_start)(struct i2400m *); void (*bus_dev_stop)(struct i2400m *); void (*bus_tx_kick)(struct i2400m *); diff --git a/drivers/net/wimax/i2400m/sdio.c b/drivers/net/wimax/i2400m/sdio.c index d6fac5c..afde897 100644 --- a/drivers/net/wimax/i2400m/sdio.c +++ b/drivers/net/wimax/i2400m/sdio.c @@ -418,6 +418,9 @@ int i2400ms_probe(struct sdio_func *func, i2400m->bus_dev_stop = i2400ms_bus_dev_stop; i2400m->bus_tx_kick = i2400ms_bus_tx_kick; i2400m->bus_reset = i2400ms_bus_reset; + /* The iwmc3200-wimax sometimes requires the driver to try + * hard when we paint it into a corner. */ + i2400m->bus_bm_retries = I3200_BOOT_RETRIES; i2400m->bus_bm_cmd_send = i2400ms_bus_bm_cmd_send; i2400m->bus_bm_wait_for_ack = i2400ms_bus_bm_wait_for_ack; i2400m->bus_fw_names = i2400ms_bus_fw_names; diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index 1785132..ebc05da 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -399,6 +399,7 @@ int i2400mu_probe(struct usb_interface *iface, i2400m->bus_dev_stop = i2400mu_bus_dev_stop; i2400m->bus_tx_kick = i2400mu_bus_tx_kick; i2400m->bus_reset = i2400mu_bus_reset; + i2400m->bus_bm_retries = I2400M_BOOT_RETRIES; i2400m->bus_bm_cmd_send = i2400mu_bus_bm_cmd_send; i2400m->bus_bm_wait_for_ack = i2400mu_bus_bm_wait_for_ack; i2400m->bus_fw_names = i2400mu_bus_fw_names; -- 1.6.2.3 _______________________________________________ wimax mailing list [email protected] http://lists.linuxwimax.org/listinfo/wimax
