forked from Minki/linux
267d9d7387
* Accept EPERM in some simple cases, the following cases are handled: 1) efx_mcdi_read_assertion() Unprivileged PCI functions aren't allowed to GET_ASSERTS. We return success as it's up to the primary PF to deal with asserts. 2) efx_mcdi_mon_probe() in efx_ef10_probe() Unprivileged PCI functions aren't allowed to read sensor info, and worrying about sensor data is the primary PF's job. 3) phy_op->reconfigure() in efx_init_port() and efx_reset_up() Unprivileged functions aren't allowed to MC_CMD_SET_LINK, they just have to accept the settings (including flow-control, which is what efx_init_port() is worried about) they've been given. 4) Fallback to GET_WORKAROUNDS in efx_ef10_probe() Unprivileged PCI functions aren't allowed to set workarounds. So if efx_mcdi_set_workaround() fails EPERM, use efx_mcdi_get_workarounds() to find out if workaround_35388 is enabled. 5) If DRV_ATTACH gets EPERM, try without specifying fw-variant Unprivileged PCI functions have to use a FIRMWARE_ID of 0xffffffff (MC_CMD_FW_DONT_CARE). 6) Don't try to exit_assertion unless one had fired Previously we called efx_mcdi_exit_assertion even if efx_mcdi_read_assertion had received MC_CMD_GET_ASSERTS_FLAGS_NO_FAILS. This is unnecessary, and the resulting MC_CMD_REBOOT, even if the AFTER_ASSERTION flag made it a no-op, would fail EPERM for unprivileged PCI functions. So make efx_mcdi_read_assertion return whether an assert happened, and only call efx_mcdi_exit_assertion if it has. Signed-off-by: Shradha Shah <sshah@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| bitfield.h | ||
| ef10_regs.h | ||
| ef10_sriov.c | ||
| ef10_sriov.h | ||
| ef10.c | ||
| efx.c | ||
| efx.h | ||
| enum.h | ||
| ethtool.c | ||
| falcon_boards.c | ||
| falcon.c | ||
| farch_regs.h | ||
| farch.c | ||
| filter.h | ||
| io.h | ||
| Kconfig | ||
| Makefile | ||
| mcdi_mon.c | ||
| mcdi_pcol.h | ||
| mcdi_port.c | ||
| mcdi.c | ||
| mcdi.h | ||
| mdio_10g.c | ||
| mdio_10g.h | ||
| mtd.c | ||
| net_driver.h | ||
| nic.c | ||
| nic.h | ||
| phy.h | ||
| ptp.c | ||
| qt202x_phy.c | ||
| rx.c | ||
| selftest.c | ||
| selftest.h | ||
| siena_sriov.c | ||
| siena_sriov.h | ||
| siena.c | ||
| sriov.c | ||
| sriov.h | ||
| tenxpress.c | ||
| tx.c | ||
| txc43128_phy.c | ||
| vfdi.h | ||
| workarounds.h | ||