/*
* This header provides constants for the reset controller
* based peripheral powerdown requests on the STMicroelectronics
* STiH407 SoC.
*/
#ifndef _DT_BINDINGS_RESET_CONTROLLER_STIH407
#define _DT_BINDINGS_RESET_CONTROLLER_STIH407
/* Powerdown requests control 0 */
#define STIH407_EMISS_POWERDOWN 0
#define STIH407_NAND_POWERDOWN 1
/* Synp GMAC PowerDown */
#define STIH407_ETH1_POWERDOWN 2
/* Powerdown requests control 1 */
#define STIH407_USB3_POWERDOWN 3
#define STIH407_USB2_PORT1_POWERDOWN 4
#define STIH407_USB2_PORT0_POWERDOWN 5
#define STIH407_PCIE1_POWERDOWN 6
#define STIH407_PCIE0_POWERDOWN 7
#define STIH407_SATA1_POWERDOWN 8
#define STIH407_SATA0_POWERDOWN 9
/* Reset defines */
#define STIH407_ETH1_SOFTRESET 0
#define STIH407_MMC1_SOFTRESET 1
#define STIH407_PICOPHY_SOFTRESET 2
#define STIH407_IRB_SOFTRESET 3
#define STIH407_PCIE0_SOFTRESET 4
#define STIH407_PCIE1_SOFTRESET 5
#define STIH407_SATA0_SOFTRESET 6
#define STIH407_SATA1_SOFTRESET 7
#define STIH407_MIPHY0_SOFTRESET 8
#define STIH407_MIPHY1_SOFTRESET 9
#define STIH407_MIPHY2_SOFTRESET 10
#define STIH407_SATA0_PWR_SOFTRESET 11
#define STIH407_SATA1_PWR_SOFTRESET 12
#define STIH407_DELTA_SOFTRESET 13
#define STIH407_BLITTER_SOFTRESET 14
#define STIH407_HDTVOUT_SOFTRESET 15
#define STIH407_HDQVDP_SOFTRESET 16
#define STIH407_VDP_AUX_SOFTRESET 17
#define STIH407_COMPO_SOFTRESET 18
#define STIH407_HDMI_TX_PHY_SOFTRESET 19
#define STIH407_JPEG_DEC_SOFTRESET 20
#define STIH407_VP8_DEC_SOFTRESET 21
#define STIH407_GPU_SOFTRESET 22
#define STIH407_HVA_SOFTRESET 23
#define STIH407_ERAM_HVA_SOFTRESET 24
#define STIH407_LPM_SOFTRESET 25
#define STIH407_KEYSCAN_SOFTRESET 26
#define STIH407_USB2_PORT0_SOFTRESET 27
#define STIH407_USB2_PORT1_SOFTRESET 28
#define STIH407_ST231_AUD_SOFTRESET 29
#define STIH407_ST231_DMU_SOFTRESET 30
#define STIH407_ST231_GP0_SOFTRESET 31
#define STIH407_ST231_GP1_SOFTRESET 32
/* Picophy reset defines */
#define STIH407_PICOPHY0_RESET 0
#define STIH407_PICOPHY1_RESET 1
#define STIH407_PICOPHY2_RESET 2
#endif /* _DT_BINDINGS_RESET_CONTROLLER_STIH407 */
>
Drivers: hv: vmbus: finally fix hv_need_to_signal_on_read()
Commit a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")
added the proper mb(), but removed the test "prev_write_sz < pending_sz"
when making the signal decision.
As a result, the guest can signal the host unnecessarily,
and then the host can throttle the guest because the host
thinks the guest is buggy or malicious; finally the user
running stress test can perceive intermittent freeze of
the guest.
This patch brings back the test, and properly handles the
in-place consumption APIs used by NetVSC (see get_next_pkt_raw(),
put_pkt_raw() and commit_rd_index()).
Fixes: a389fcfd2cb5 ("Drivers: hv: vmbus: Fix signaling logic in
hv_need_to_signal_on_read()")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Reported-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Tested-by: Rolf Neugebauer <rolf.neugebauer@docker.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>