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authorPaolo Abeni <pabeni@redhat.com>2022-11-08 14:39:04 +0300
committerPaolo Abeni <pabeni@redhat.com>2022-11-08 14:39:04 +0300
commitee1bfbcc71cfac3b570365558cf38cb70f6ca971 (patch)
treeb9c9c03e984d52ed7a24496a39396fe45c5a015f /drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
parentb2140e971309511074933da3edd5bbfcb6d394e5 (diff)
parent85036aee1938d65da4be6ae1bc7e5e7e30b567b9 (diff)
downloadlinux-ee1bfbcc71cfac3b570365558cf38cb70f6ca971.tar.xz
Merge branch 'bnxt_en-updates'
Michael Chan says: ==================== bnxt_en: Updates This small patchset adds an improvement to the configuration of ethtool RSS tuple hash and a PTP improvement when running in a multi-host environment. ==================== Link: https://lore.kernel.org/r/1667780192-3700-1-git-send-email-michael.chan@broadcom.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h')
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
index 4ce0a14c1e23..34162e07a119 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h
@@ -17,6 +17,8 @@
#define BNXT_PTP_GRC_WIN_BASE 0x6000
#define BNXT_MAX_PHC_DRIFT 31000000
+#define BNXT_CYCLES_SHIFT 23
+#define BNXT_DEVCLK_FREQ 1000000
#define BNXT_LO_TIMER_MASK 0x0000ffffffffUL
#define BNXT_HI_TIMER_MASK 0xffff00000000UL
@@ -88,8 +90,9 @@ struct bnxt_ptp_cfg {
u64 old_time;
unsigned long next_period;
unsigned long next_overflow_check;
- /* 48-bit PHC overflows in 78 hours. Check overflow every 19 hours. */
- #define BNXT_PHC_OVERFLOW_PERIOD (19 * 3600 * HZ)
+ u32 cmult;
+ /* a 23b shift cyclecounter will overflow in ~36 mins. Check overflow every 18 mins. */
+ #define BNXT_PHC_OVERFLOW_PERIOD (18 * 60 * HZ)
u16 tx_seqid;
u16 tx_hdr_off;