IB/hfi1: Preserve external device completed bit (00801674) · Commits · 戴 / test

The driver should not change the external device request completed bit when not actually doing an external device request. Reviewed-by:

drivers/infiniband/hw/hfi1/chip.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -8488,7 +8488,10 @@ static int do_8051_command(
		*/
		if (type == HCMD_WRITE_LCB_CSR) {
		in_data \|= ((*out_data) & 0xffffffffffull) << 8;
		reg = ((((*out_data) >> 40) & 0xff) <<
		/* must preserve COMPLETED - it is tied to hardware */
		reg = read_csr(dd, DC_DC8051_CFG_EXT_DEV_0);
		reg &= DC_DC8051_CFG_EXT_DEV_0_COMPLETED_SMASK;
		reg \|= ((((*out_data) >> 40) & 0xff) <<
		DC_DC8051_CFG_EXT_DEV_0_RETURN_CODE_SHIFT)
		\| ((((*out_data) >> 48) & 0xffff) <<
		DC_DC8051_CFG_EXT_DEV_0_RSP_DATA_SHIFT);