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authorPaul Greenwalt <paul.greenwalt@intel.com>2020-06-05 10:09:46 -0700
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2020-06-11 15:13:16 -0700
commit8e3e4b9da7e62680668f6cf71742207758764458 (patch)
treeea20bf3f7b4b601b27a75b4a4986a471fcd0fac6 /drivers
parent18c012d922620bb35ff2ab6838f1269bc12cf647 (diff)
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iavf: increase reset complete wait time
With an increased number of VFs, it's possible to encounter the following issue during reset. iavf b8d4:00:02.0: Hardware reset detected iavf b8d4:00:02.0: Reset never finished (0) iavf b8d4:00:02.0: Reset task did not complete, VF disabled Increase the reset complete wait count to allow for 128 VFs to complete reset. Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/intel/iavf/iavf.h4
-rw-r--r--drivers/net/ethernet/intel/iavf/iavf_main.c12
2 files changed, 9 insertions, 7 deletions
diff --git a/drivers/net/ethernet/intel/iavf/iavf.h b/drivers/net/ethernet/intel/iavf/iavf.h
index 2d4ce6fdba1a..10b805ba03ee 100644
--- a/drivers/net/ethernet/intel/iavf/iavf.h
+++ b/drivers/net/ethernet/intel/iavf/iavf.h
@@ -219,6 +219,10 @@ struct iavf_cloud_filter {
bool add; /* filter needs to be added */
};
+#define IAVF_RESET_WAIT_MS 10
+#define IAVF_RESET_WAIT_DETECTED_COUNT 500
+#define IAVF_RESET_WAIT_COMPLETE_COUNT 2000
+
/* board specific private data structure */
struct iavf_adapter {
struct work_struct reset_task;
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 06c481e9ac5c..fa82768e5eda 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2046,8 +2046,6 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
dev_info(&adapter->pdev->dev, "Reset task did not complete, VF disabled\n");
}
-#define IAVF_RESET_WAIT_MS 10
-#define IAVF_RESET_WAIT_COUNT 500
/**
* iavf_reset_task - Call-back task to handle hardware reset
* @work: pointer to work_struct
@@ -2101,20 +2099,20 @@ static void iavf_reset_task(struct work_struct *work)
adapter->flags |= IAVF_FLAG_RESET_PENDING;
/* poll until we see the reset actually happen */
- for (i = 0; i < IAVF_RESET_WAIT_COUNT; i++) {
+ for (i = 0; i < IAVF_RESET_WAIT_DETECTED_COUNT; i++) {
reg_val = rd32(hw, IAVF_VF_ARQLEN1) &
IAVF_VF_ARQLEN1_ARQENABLE_MASK;
if (!reg_val)
break;
usleep_range(5000, 10000);
}
- if (i == IAVF_RESET_WAIT_COUNT) {
+ if (i == IAVF_RESET_WAIT_DETECTED_COUNT) {
dev_info(&adapter->pdev->dev, "Never saw reset\n");
goto continue_reset; /* act like the reset happened */
}
/* wait until the reset is complete and the PF is responding to us */
- for (i = 0; i < IAVF_RESET_WAIT_COUNT; i++) {
+ for (i = 0; i < IAVF_RESET_WAIT_COMPLETE_COUNT; i++) {
/* sleep first to make sure a minimum wait time is met */
msleep(IAVF_RESET_WAIT_MS);
@@ -2126,7 +2124,7 @@ static void iavf_reset_task(struct work_struct *work)
pci_set_master(adapter->pdev);
- if (i == IAVF_RESET_WAIT_COUNT) {
+ if (i == IAVF_RESET_WAIT_COMPLETE_COUNT) {
dev_err(&adapter->pdev->dev, "Reset never finished (%x)\n",
reg_val);
iavf_disable_vf(adapter);
@@ -3429,7 +3427,7 @@ static int iavf_check_reset_complete(struct iavf_hw *hw)
u32 rstat;
int i;
- for (i = 0; i < 100; i++) {
+ for (i = 0; i < IAVF_RESET_WAIT_COMPLETE_COUNT; i++) {
rstat = rd32(hw, IAVF_VFGEN_RSTAT) &
IAVF_VFGEN_RSTAT_VFR_STATE_MASK;
if ((rstat == VIRTCHNL_VFR_VFACTIVE) ||