linux/drivers/ntb, branch v3.10.2

NTB: Multiple NTB client fix

2013-05-15T17:58:22Z

Fix issue with adding multiple ntb client devices to the ntb virtual bus. Previously, multiple devices would be added with the same name, resulting in crashes. To get around this issue, add a unique number to the device when it is added. Signed-off-by: Jon Mason

NTB: memcpy lockup workaround

2013-05-15T17:58:06Z

The system will appear to lockup for long periods of time due to the NTB driver spending too much time in memcpy. Avoid this by reducing the number of packets that can be serviced on a given interrupt. Signed-off-by: Jon Mason

NTB: Correctly handle receive buffers of the minimal size

2013-05-15T17:57:59Z

The ring logic of the NTB receive buffer/transmit memory window requires there to be at least 2 payload sized allotments. For the minimal size case, split the buffer into two and set the transport_mtu to the appropriate size. Signed-off-by: Jon Mason

NTB: reset tx_index on link toggle

2013-05-15T17:57:51Z

If the NTB link toggles, the driver could stop receiving due to the tx_index not being set to 0 on the transmitting size on a link-up event. This is due to the driver expecting the incoming data to start at the beginning of the receive buffer and not at a random place. Signed-off-by: Jon Mason

NTB: Link toggle memory leak

2013-05-15T17:57:45Z

Each link-up will allocate a new NTB receive buffer when the NTB properties are negotiated with the remote system. These allocations did not check for existing buffers and thus did not free them. Now, the driver will check for an existing buffer and free it if not of the correct size, before trying to alloc a new one. Signed-off-by: Jon Mason

NTB: Handle 64bit BAR sizes

2013-05-15T17:57:40Z

64bit BAR sizes are permissible with an NTB device. To support them various modifications and clean-ups were required, most significantly using 2 32bit scratch pad registers for each BAR. Also, modify the driver to allow more than 2 Memory Windows. Signed-off-by: Jon Mason

NTB: fix pointer math issues

2013-05-15T17:57:29Z

->remote_rx_info and ->rx_info are struct ntb_rx_info pointers. If we add sizeof(struct ntb_rx_info) then it goes too far. Signed-off-by: Dan Carpenter Signed-off-by: Jon Mason

ntb: off by one sanity checks

2013-05-15T17:57:24Z

These tests are off by one. If "mw" is equal to NTB_NUM_MW then we would go beyond the end of the ndev->mw[] array. Signed-off-by: Dan Carpenter Signed-off-by: Jon Mason

NTB: variable dereferenced before check

2013-05-15T17:57:17Z

Correct instances of variable dereferencing before checking its value on the functions exported to the client drivers. Also, add sanity checks for all exported functions. Reported-by: Dan Carpenter Signed-off-by: Jon Mason

NTB: Fix Sparse Warnings

2013-01-21T22:34:21Z

Address the sparse warnings and resulting fallout Signed-off-by: Jon Mason Signed-off-by: Greg Kroah-Hartman