kernel/drivers/net/ethernet/intel/e1000e, branch linux-4.3.y

e1000e: Modify Tx/Rx configurations to avoid null pointer dereferences in e1000_open

2015-08-18T21:06:06Z

When e1000e_setup_rx_resources is failed in e1000_open, e1000e_free_tx_resources in "err_setup_rx" segment is executed. "writel(0, tx_ring->head)" statement in e1000_clean_tx_ring in e1000e_free_tx_resources will cause a null poonter dereference(crash), because "tx_ring->head" is only assigned in e1000_configure_tx in e1000_configure, but it is after e1000e_setup_rx_resources. This patch moves head/tail register writing to e1000_configure_tx/rx, which can fix this problem. It is inspired by igb_configure_tx_ring in the igb driver. Specially, thank Alexander Duyck for his valuable suggestion. Signed-off-by: Jia-Ju Bai Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Increase driver version number

2015-08-05T23:54:04Z

Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Fix tight loop implementation of systime read algorithm

2015-08-05T23:53:48Z

Change the algorithm. Read systimel twice and check for overflow. If there was no overflow, use the first value. If there was an overflow, read systimeh again and use the second systimel value. Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Fix incorrect ASPM locking

2015-08-05T23:53:47Z

This patch fixes wrong locking usage. In the context of slot reset, we should use lock. And during resume, there is no need of lock. Reported-by: Bjorn Helgaas Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Cosmetic changes

2015-08-05T23:53:47Z

1) Replace spaces with tab. 2) Move ich8lan related define to the proper context. Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Fix EEE in Sx implementation

2015-08-05T23:53:47Z

This patch implements the EEE in Sx code so that it only applies to parts that support EEE in Sx (as opposed to all parts that support EEE). It also uses the existing eee_advert and eee_lp_abiliity to set just the bits (100/1000) that should be set. Signed-off-by: Raanan Avargil Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: Cleanup qos request in error handling of e1000_open

2015-07-23T12:03:59Z

The driver lacks pm_qos_remove_request in error handling (err_req_irq) of e1000_open, and qos request inserted by pm_qos_add_request is not removed. This patch add pm_qos_remove_request in error handling to fix it. Signed-off-by: Jia-Ju Bai Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: i219 - k1 workaround for LPT is not required for SPT

2015-06-26T09:47:37Z

In SPT hardware does not require this driver workaround. Removed the conditional that caused K1 workaround execution on SPT. Signed-off-by: Yanir Lubetkin Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: i219 - Increase minimum FIFO read/write min gap

2015-06-26T09:45:50Z

Due to clocking changes in the Skylake platform, there was i219 data corruption. To work around this, HW team reported the need to increase the minimum gap between the PHY FIFO read and write pointers. Signed-off-by: Yanir Lubetkin Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher

e1000e: i219 - increase IPG for speed 10/100 full duplex

2015-06-26T09:43:44Z

In SPT/i219, there were CRC errors in speed 10/100 full duplex. The solution given by the HW team is to increase the IPG from 8 to 0xC Signed-off-by: Yanir Lubetkin Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher