diff options
Diffstat (limited to 'drivers/infiniband/hw/hfi1/pcie.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/pcie.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c index a0802332c8cb..5395cf56fbd9 100644 --- a/drivers/infiniband/hw/hfi1/pcie.c +++ b/drivers/infiniband/hw/hfi1/pcie.c @@ -3,6 +3,7 @@ * Copyright(c) 2015 - 2019 Intel Corporation. */ +#include <linux/bitfield.h> #include <linux/pci.h> #include <linux/io.h> #include <linux/delay.h> @@ -212,12 +213,6 @@ static u32 extract_speed(u16 linkstat) return speed; } -/* return the PCIe link speed from the given link status */ -static u32 extract_width(u16 linkstat) -{ - return (linkstat & PCI_EXP_LNKSTA_NLW) >> PCI_EXP_LNKSTA_NLW_SHIFT; -} - /* read the link status and set dd->{lbus_width,lbus_speed,lbus_info} */ static void update_lbus_info(struct hfi1_devdata *dd) { @@ -230,7 +225,7 @@ static void update_lbus_info(struct hfi1_devdata *dd) return; } - dd->lbus_width = extract_width(linkstat); + dd->lbus_width = FIELD_GET(PCI_EXP_LNKSTA_NLW, linkstat); dd->lbus_speed = extract_speed(linkstat); snprintf(dd->lbus_info, sizeof(dd->lbus_info), "PCIe,%uMHz,x%u", dd->lbus_speed, dd->lbus_width); |