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| author | Mark Haverkamp <markh@osdl.org> | 2006-03-27 09:43:55 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-04-13 10:13:18 -0500 |
| commit | 31876f328f22435c21cfc27f0c871a4a4b22f9db (patch) | |
| tree | dd0138f43655faac97ce6c87759d960d74a59262 /drivers/scsi/aacraid/commsup.c | |
| parent | 77d644d4d70c9ad5df51792575f43a950525c9aa (diff) | |
| download | kernel_samsung_smdk4412-31876f328f22435c21cfc27f0c871a4a4b22f9db.zip kernel_samsung_smdk4412-31876f328f22435c21cfc27f0c871a4a4b22f9db.tar.gz kernel_samsung_smdk4412-31876f328f22435c21cfc27f0c871a4a4b22f9db.tar.bz2 | |
[SCSI] aacraid: Add timeout for events
Received from Mark Salyzyn
Plug and play actions resulting from event sequences shall time out if
they take longer than 30 seconds to complete.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aacraid/commsup.c')
| -rw-r--r-- | drivers/scsi/aacraid/commsup.c | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index c7f80ec..bed4e2d 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -784,6 +784,7 @@ void aac_printf(struct aac_dev *dev, u32 val) * dispatches it to the appropriate routine for handling. */ +#define AIF_SNIFF_TIMEOUT (30*HZ) static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) { struct hw_fib * hw_fib = fibptr->hw_fib; @@ -837,6 +838,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) if (device) { dev->fsa_dev[container].config_needed = CHANGE; dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; + dev->fsa_dev[container].config_waiting_stamp = jiffies; scsi_device_put(device); } } @@ -849,13 +851,15 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) if (container != (u32)-1) { if (container >= dev->maximum_num_containers) break; - if (dev->fsa_dev[container].config_waiting_on == - le32_to_cpu(*(u32 *)aifcmd->data)) + if ((dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) dev->fsa_dev[container].config_waiting_on = 0; } else for (container = 0; container < dev->maximum_num_containers; ++container) { - if (dev->fsa_dev[container].config_waiting_on == - le32_to_cpu(*(u32 *)aifcmd->data)) + if ((dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) dev->fsa_dev[container].config_waiting_on = 0; } break; @@ -872,6 +876,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) dev->fsa_dev[container].config_needed = ADD; dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; + dev->fsa_dev[container].config_waiting_stamp = jiffies; break; /* @@ -884,6 +889,7 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) dev->fsa_dev[container].config_needed = DELETE; dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; + dev->fsa_dev[container].config_waiting_stamp = jiffies; break; /* @@ -894,11 +900,13 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) container = le32_to_cpu(((u32 *)aifcmd->data)[1]); if (container >= dev->maximum_num_containers) break; - if (dev->fsa_dev[container].config_waiting_on) + if (dev->fsa_dev[container].config_waiting_on && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) break; dev->fsa_dev[container].config_needed = CHANGE; dev->fsa_dev[container].config_waiting_on = AifEnConfigChange; + dev->fsa_dev[container].config_waiting_stamp = jiffies; break; case AifEnConfigChange: @@ -913,13 +921,15 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) if (container != (u32)-1) { if (container >= dev->maximum_num_containers) break; - if (dev->fsa_dev[container].config_waiting_on == - le32_to_cpu(*(u32 *)aifcmd->data)) + if ((dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) dev->fsa_dev[container].config_waiting_on = 0; } else for (container = 0; container < dev->maximum_num_containers; ++container) { - if (dev->fsa_dev[container].config_waiting_on == - le32_to_cpu(*(u32 *)aifcmd->data)) + if ((dev->fsa_dev[container].config_waiting_on == + le32_to_cpu(*(u32 *)aifcmd->data)) && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) dev->fsa_dev[container].config_waiting_on = 0; } break; @@ -946,6 +956,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) dev->fsa_dev[container].config_waiting_on = AifEnContainerChange; dev->fsa_dev[container].config_needed = ADD; + dev->fsa_dev[container].config_waiting_stamp = + jiffies; } } if ((((u32 *)aifcmd->data)[1] == cpu_to_le32(AifJobCtrZero)) @@ -961,6 +973,8 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) dev->fsa_dev[container].config_waiting_on = AifEnContainerChange; dev->fsa_dev[container].config_needed = DELETE; + dev->fsa_dev[container].config_waiting_stamp = + jiffies; } } break; @@ -969,8 +983,9 @@ static void aac_handle_aif(struct aac_dev * dev, struct fib * fibptr) device_config_needed = NOTHING; for (container = 0; container < dev->maximum_num_containers; ++container) { - if ((dev->fsa_dev[container].config_waiting_on == 0) - && (dev->fsa_dev[container].config_needed != NOTHING)) { + if ((dev->fsa_dev[container].config_waiting_on == 0) && + (dev->fsa_dev[container].config_needed != NOTHING) && + time_before(jiffies, dev->fsa_dev[container].config_waiting_stamp + AIF_SNIFF_TIMEOUT)) { device_config_needed = dev->fsa_dev[container].config_needed; dev->fsa_dev[container].config_needed = NOTHING; |