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| author | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-10-19 16:24:56 +0900 |
|---|---|---|
| committer | Inaky Perez-Gonzalez <inaky@linux.intel.com> | 2009-11-03 12:49:36 -0800 |
| commit | c931ceeb780560ff652a8f9875f88778439ee87e (patch) | |
| tree | ca754722967ff1b9a4660ef38b0eae3d36f38a58 /drivers/net/wimax/i2400m/driver.c | |
| parent | 55a662d6468005ec3cd799fbd8d0ad03dfae6d2a (diff) | |
| download | linux-3.10-c931ceeb780560ff652a8f9875f88778439ee87e.tar.gz linux-3.10-c931ceeb780560ff652a8f9875f88778439ee87e.tar.bz2 linux-3.10-c931ceeb780560ff652a8f9875f88778439ee87e.zip | |
wimax/i2400m: introduce i2400m_reset(), stopping TX and carrier
Currently the i2400m driver was resetting by just calling
i2400m->bus_reset(). However, this was missing stopping the TX queue
and downing the carrier. This was causing, for the corner case of the
driver reseting a device that refuses to go out of idle mode, that a
few packets would be queued and more than one reset would go through,
making the recovery a wee bit messy.
To avoid introducing the same cleanup in all the bus-specific driver,
introduced a i2400m_reset() function that takes care of house cleaning
and then calling the bus-level reset implementation.
The bulk of the changes in all files are just to rename the call from
i2400m->bus_reset() to i2400m_reset().
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Diffstat (limited to 'drivers/net/wimax/i2400m/driver.c')
| -rw-r--r-- | drivers/net/wimax/i2400m/driver.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/drivers/net/wimax/i2400m/driver.c b/drivers/net/wimax/i2400m/driver.c index cc58a864bd0..96a615fe09d 100644 --- a/drivers/net/wimax/i2400m/driver.c +++ b/drivers/net/wimax/i2400m/driver.c @@ -255,7 +255,7 @@ int i2400m_op_reset(struct wimax_dev *wimax_dev) mutex_lock(&i2400m->init_mutex); i2400m->reset_ctx = &ctx; mutex_unlock(&i2400m->init_mutex); - result = i2400m->bus_reset(i2400m, I2400M_RT_WARM); + result = i2400m_reset(i2400m, I2400M_RT_WARM); if (result < 0) goto out; result = wait_for_completion_timeout(&ctx.completion, 4*HZ); @@ -710,7 +710,7 @@ out_unlock: mutex_unlock(&i2400m->init_mutex); if (result == -EUCLEAN) { /* ops, need to clean up [w/ init_mutex not held] */ - result = i2400m->bus_reset(i2400m, I2400M_RT_BUS); + result = i2400m_reset(i2400m, I2400M_RT_BUS); if (result >= 0) result = -ENODEV; } @@ -815,6 +815,24 @@ void i2400m_init(struct i2400m *i2400m) EXPORT_SYMBOL_GPL(i2400m_init); +int i2400m_reset(struct i2400m *i2400m, enum i2400m_reset_type rt) +{ + struct net_device *net_dev = i2400m->wimax_dev.net_dev; + + /* + * Make sure we stop TXs and down the carrier before + * resetting; this is needed to avoid things like + * i2400m_wake_tx() scheduling stuff in parallel. + */ + if (net_dev->reg_state == NETREG_REGISTERED) { + netif_tx_disable(net_dev); + netif_carrier_off(net_dev); + } + return i2400m->bus_reset(i2400m, rt); +} +EXPORT_SYMBOL_GPL(i2400m_reset); + + /** * i2400m_setup - bus-generic setup function for the i2400m device * |