kernel.git/drivers/net/ethernet/amazon, branch linux-4.13.y

net: ena: update ena driver to version 1.2.0

2017-06-23T18:15:11Z

Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: update driver's rx drop statistics

2017-06-23T18:15:11Z

rx drop counter is reported by the device in the keep-alive event. update the driver's counter with the device counter. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: use lower_32_bits()/upper_32_bits() to split dma address

2017-06-23T18:15:10Z

In ena_com_mem_addr_set(), use the above functions to split dma address to the lower 32 bits and the higher 16 bits. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: separate skb allocation to dedicated function

2017-06-23T18:15:10Z

Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: use napi_schedule_irqoff when possible

2017-06-23T18:15:10Z

Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: allow the driver to work with small number of msix vectors

2017-06-23T18:15:10Z

Current driver tries to allocate msix vectors as the number of the negotiated io queues. (with another msix vector for management). If pci_alloc_irq_vectors() fails, the driver aborts the probe and the ENA network device is never brought up. With this patch, the driver's logic will reduce the number of IO queues to the number of allocated msix vectors (minus one for management) instead of failing probe(). Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: add support for out of order rx buffers refill

2017-06-23T18:15:09Z

ENA driver post Rx buffers through the Rx submission queue for the ENA device to fill them with receive packets. Each Rx buffer is marked with req_id in the Rx descriptor. Newer ENA devices could consume the posted Rx buffer in out of order, and as result the corresponding Rx completion queue will have Rx completion descriptors with non contiguous req_id(s) In this change the driver holds two rings. The first ring (called free_rx_ids) is a mapping ring. It holds all the unused request ids. The values in this ring are from 0 to ring_size -1. When the driver wants to allocate a new Rx buffer it uses the head of free_rx_ids and uses it's value as the index for rx_buffer_info ring. The req_id is also written to the Rx descriptor Upon Rx completion, The driver took the req_id from the completion descriptor and uses it as index in rx_buffer_info. The req_id is then return to the free_rx_ids ring. This patch also adds statistics to inform when the driver receive out of range or unused req_id. Note: free_rx_ids is only accessible from the napi handler, so no locking is required Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: add reset reason for each device FLR

2017-06-23T18:15:09Z

For each device reset, log to the device what is the cause the reset occur. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: change sizeof() argument to be the type pointer

2017-06-23T18:15:09Z

Instead of using: memset(ptr, 0x0, sizeof(struct ...)) use: memset(ptr, 0x0, sizeor(*ptr)) Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller

net: ena: add hardware hints capability to the driver

2017-06-23T18:15:08Z

With this patch, ENA device can update the ena driver about the desired timeout values: These values are part of the "hardware hints" which are transmitted to the driver as Asynchronous event through ENA async event notification queue. In case the ENA device does not support this capability, the driver will use its own default values. Signed-off-by: Netanel Belgazal Signed-off-by: David S. Miller