Commit 779d61df authored by Justin Tee's avatar Justin Tee Committed by Martin K. Petersen
Browse files

scsi: lpfc: Update congestion warning notification period 



The CMF_SYNC_WQE command is updated to use an 8-bit field sync period.  All
related variables used to calculate congestion warning notifications are
updated to 8-bit fields accordingly.

Signed-off-by: default avatarJustin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20230417191558.83100-5-justintee8345@gmail.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 78e9e350

drivers/scsi/lpfc/lpfc_attr.c

+2 −2
Original line number Diff line number Diff line
@@ -5858,8 +5858,8 @@ int lpfc_fabric_cgn_frequency = 100; /* 100 ms default */ 
module_param(lpfc_fabric_cgn_frequency, int, 0444);

MODULE_PARM_DESC(lpfc_fabric_cgn_frequency, "Congestion signaling fabric freq");



int lpfc_acqe_cgn_frequency = 10; /* 10 sec default */

module_param(lpfc_acqe_cgn_frequency, int, 0444);

unsigned char lpfc_acqe_cgn_frequency = 10; /* 10 sec default */

module_param(lpfc_acqe_cgn_frequency, byte, 0444);

MODULE_PARM_DESC(lpfc_acqe_cgn_frequency, "Congestion signaling ACQE freq");



int lpfc_use_cgn_signal = 1; /* 0 - only use FPINs, 1 - Use signals if avail  */

drivers/scsi/lpfc/lpfc_crtn.h

+1 −1
Original line number Diff line number Diff line
@@ -663,7 +663,7 @@ extern int lpfc_enable_nvmet_cnt; 
extern unsigned long long lpfc_enable_nvmet[];

extern int lpfc_no_hba_reset_cnt;

extern unsigned long lpfc_no_hba_reset[];

extern int lpfc_acqe_cgn_frequency;

extern unsigned char lpfc_acqe_cgn_frequency;

extern int lpfc_fabric_cgn_frequency;

extern int lpfc_use_cgn_signal;

drivers/scsi/lpfc/lpfc_hw4.h

+2 −2
Original line number Diff line number Diff line
@@ -4813,8 +4813,8 @@ struct cmf_sync_wqe { 
#define cmf_sync_cqid_WORD	word11

	uint32_t read_bytes;

	uint32_t word13;

#define cmf_sync_period_SHIFT	16

#define cmf_sync_period_MASK	0x0000ffff

#define cmf_sync_period_SHIFT	24

#define cmf_sync_period_MASK	0x000000ff

#define cmf_sync_period_WORD	word13

	uint32_t word14;

	uint32_t word15;

drivers/scsi/lpfc/lpfc_sli.c

+1 −1
Original line number Diff line number Diff line
@@ -1931,7 +1931,7 @@ lpfc_issue_cmf_sync_wqe(struct lpfc_hba *phba, u32 ms, u64 total) 
	unsigned long iflags;

	u32 ret_val;

	u32 atot, wtot, max;

	u16 warn_sync_period = 0;

	u8 warn_sync_period = 0;









	/* First address any alarm / warning activity */









	atot = atomic_xchg(&phba->cgn_sync_alarm_cnt, 0);