From 242b494bf22be4056df1493664b00b5d0b238e53 Mon Sep 17 00:00:00 2001 From: Jan Sokolowski Date: Mon, 9 Oct 2017 13:08:28 -0700 Subject: IB/hfi1: Fix serdes loopback set-up Change serdes mode setting to use MISC_CONFIG_BITS in VERIFY_CAP_LOCAL_LINK_WIDTH register. This method of setting up serdes loopback is universally compatible across all firmware versions. Reviewed-by: Jakub Byczkowski Signed-off-by: Jan Sokolowski Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/chip.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/infiniband/hw/hfi1/chip.h') diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h index b8345a60a0fb..45b645e892c9 100644 --- a/drivers/infiniband/hw/hfi1/chip.h +++ b/drivers/infiniband/hw/hfi1/chip.h @@ -582,6 +582,9 @@ enum { #define LOOPBACK_LCB 2 #define LOOPBACK_CABLE 3 /* external cable */ +/* set up serdes bit in MISC_CONFIG_BITS */ +#define LOOPBACK_SERDES_CONFIG_BIT_MASK_SHIFT 0 + /* read and write hardware registers */ u64 read_csr(const struct hfi1_devdata *dd, u32 offset); void write_csr(const struct hfi1_devdata *dd, u32 offset, u64 value); -- cgit v1.2.3-59-g8ed1b