Cindy H Kao d94401742d wimax/i2400m: Reset the TX FIFO indices when allocating the TX FIFO in tx_setup() ... This patch makes sure whenever tx_setup() is invoked during driver initialization or device reset where TX FIFO is released and re-allocated, the indices tx_in, tx_out, tx_msg_size, tx_sequence, tx_msg are properly initialized. When a device reset happens and the TX FIFO is released/re-allocated, a new block of memory may be allocated for the TX FIFO, therefore tx_msg should be cleared so that no any TX threads (tx_worker, tx) would access to the out-of-date addresses. Also, the TX threads use tx_in and tx_out to decide where to put the new host-to-device messages and from where to copy them to the device HW FIFO, these indices have to be cleared so after the TX FIFO is re-allocated during the reset, the indices both refer to the head of the FIFO, ie. a new start. The same rational applies to tx_msg_size and tx_sequence. To protect the indices from being accessed by multiple threads simultaneously, the lock tx_lock has to be obtained before the initializations and released afterwards. Signed-off-by: Cindy H Kao <cindy.h.kao@intel.com>		2010-05-11 14:05:55 -07:00
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i2400m	wimax/i2400m: Reset the TX FIFO indices when allocating the TX FIFO in tx_setup()	2010-05-11 14:05:55 -07:00
Kconfig	i2400m: Makefile and Kconfig	2009-01-07 10:00:22 -08:00
Makefile	i2400m: Makefile and Kconfig	2009-01-07 10:00:22 -08:00