staging/luka, branch master

linux: mvebu: backport mvneta XDP support fixes

2020-05-28T09:43:13Z

This patch backports additional fixes for XDP support in the mvneta driver. These changes are found upstream as commits: b37fa92e20ef2 net: mvneta: fix build skb for bm capable devices f383b2950070c net: mvneta: rely on page_pool_recycle_direct in mvneta_run_xdp 79572c98c554d mvneta driver disallow XDP program on hardware buffer management 44efc78d0e464 net: mvneta: fix XDP support if sw bm is used as fallback Signed-off-by: Jakov Petrina

linux: mvebu: backport mvneta XDP support

2020-05-28T09:43:13Z

This patch backports XDP support in the mvneta driver used by Marvell ARMADA 37x, 38x and 37xx series SoCs. Supported actions are: - XDP_DROP - XDP_PASS - XDP_REDIRECT - XDP_TX Patches are present upstream as following commits: * b0a43db9087a net: mvneta: add XDP_TX support * 9e58c8b41065 net: mvneta: make tx buffer array agnostic * fa383f6b77a2 net: mvneta: move header prefetch in mvneta_swbm_rx_frame * 0db51da7a8e9 net: mvneta: add basic XDP support * 8dc9a0888f4c net: mvneta: rely on build_skb in mvneta_rx_swbm poll routine * 568a3fa24a95 net: mvneta: introduce page pool API for sw buffer manager * ff519e2acd46 net: mvneta: introduce mvneta_update_stats routine Signed-off-by: Jakov Petrina

packages/utils: fbtest fix Makefile

2020-05-28T09:22:22Z

The clean target tries to remove what looks like a bogus 'rbcfg', probably carried over copy-pasta. Remove the name of the generated executable ('fbtest') instead. Signed-off-by: Thibaut VARÈNE Fixes: 8099f4e0d3af ("fbtest utility ")

package/base-files: caldata: work around dd's limitation

2020-05-28T09:22:22Z

tl;dr: dd will silently truncate the output if reading from special files (e.g. sysfs attributes) with a too large bs parameter. This problem was exposed on some RouterBOARD ipq40xx devices which use a caldata payload which is larger than PAGE_SIZE, contrary to all other currently supported RouterBOARD devices: the caldata would fail to properly load with the current scripts. Background: dd doesn't seem to correctly handle read() results that return less than requested data. sysfs attributes have a kernel exchange buffer which is at most PAGE_SIZE big, so only 1 page can be read() at a time. In this case, if bs is larger than PAGE_SIZE, dd will silently truncate blocks to PAGE_SIZE. With the current scripts using bs= count=1, the data is truncated to PAGE_SIZE as soon as the requested exceeds this value. This commit works around this problem by using `cat` in the caldata routines that can read from a file (routines that read from mtd devices are untouched). cat correctly handles partial read requests. The output is then piped to dd with the same parameters as before, to ensure that the resulting file remains exactly the same. This is a simple workaround, the downside is that it uses a pipe and one more executable, and therefore has a larger memory footprint and is slower. This is deemed acceptable considering these routines are only used at boot time. Tested-by: Robert Marko Signed-off-by: Thibaut VARÈNE

packages/boot: remove rbcfg

2020-05-28T09:09:10Z

The new sysfs soft_config driver makes buggy rbcfg obsolete and entirely replaces it. Signed-off-by: Thibaut VARÈNE

generic: routerboot sysfs: soft_config support for ath79 cpufreq

2020-05-28T09:09:10Z

This commit introduces support for R/W access to the CPU frequency setting of routerboot on ath79 hardware. On unsupported hardware, the sysfs attribute will expose the raw tag value (read-only) to help with reverse engineering its meaning. Tested-by: Koen Vandeputte Tested-by: Roger Pueyo Centelles Signed-off-by: Thibaut VARÈNE

generic: routerboot sysfs: move tag_show_u32()

2020-05-28T09:09:10Z

This routine will be shared between hard and soft config drivers. Tested-by: Koen Vandeputte Tested-by: Roger Pueyo Centelles Signed-off-by: Thibaut VARÈNE

generic: routerboot sysfs: add support for soft_config

2020-05-28T09:09:10Z

This driver exposes the data encoded in the "soft_config" flash segment of MikroTik RouterBOARDs devices. It presents the data in a sysfs folder named "soft_config" through a set of human-and-machine-parseable attributes. Changes can be discarded by writing 0 to the 'commit' attribute, or they can be committed to flash storage by writing 1. This driver does not reuse any of the existing code previously found in the "rbcfg" utility and makes this utility obsolete by providing a clean sysfs interface. Like "rbcfg", this driver requires 4K_SECTORS support since the flash partition in which these parameters are stored is typically 4KB in size. Tested-by: Koen Vandeputte Tested-by: Roger Pueyo Centelles Signed-off-by: Thibaut VARÈNE

generic: routerboot sysfs: move tag_show_string()

2020-05-28T09:09:10Z

This routine will be shared between hard and soft config drivers. Also use scnprintf() instead of snprintf(). Tested-by: Koen Vandeputte Tested-by: Roger Pueyo Centelles Signed-off-by: Thibaut VARÈNE

generic: platform/mikrotik: rb_hardconfig.c minor fixes

2020-05-28T09:09:10Z

For the sake of strictly typed code, add a missing const qualifier. Add a missing return value in error path. Check the return value of mtd_read(), for good measure. Also demote the error printks of failed sysfs file creation to warn level since they are not fatal in the init() sequence. Finally, add a note regarding PAGE_SIZE and clarify a comment. Tested-by: Koen Vandeputte Tested-by: Roger Pueyo Centelles Signed-off-by: Thibaut VARÈNE