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| author | Corey Minyard <minyard@acm.org> | 2005-11-07 00:59:58 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-07 07:53:44 -0800 |
| commit | d5a2b89a4943b423b5b0a07783fee4e08424b0b2 (patch) | |
| tree | 971f23005105d486d163a7a83feac4c1ffcac9a4 /drivers/char/ipmi | |
| parent | 21d6c542153c680f689a9badf5534bf27704350b (diff) | |
| download | linux-d5a2b89a4943b423b5b0a07783fee4e08424b0b2.tar.gz linux-d5a2b89a4943b423b5b0a07783fee4e08424b0b2.tar.bz2 linux-d5a2b89a4943b423b5b0a07783fee4e08424b0b2.zip | |
[PATCH] ipmi: more dell fixes
Make SMIC driver ignore EVT_AVAIL and SMS_ATN bits in flags register, as
they're used by systems management interrupts, not the host OS.
Make the OEM0 Data Available handler work for pre-IPMI 1.5 systems from Dell
too.
Without these two fixes, PowerEdge 2650 and other similar systems with SMIC
may hang a process (modprobe or anything using /dev/ipmi0).
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/char/ipmi')
| -rw-r--r-- | drivers/char/ipmi/ipmi_si_intf.c | 23 | ||||
| -rw-r--r-- | drivers/char/ipmi/ipmi_smic_sm.c | 9 |
2 files changed, 23 insertions, 9 deletions
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c index 204e2e987e90..df7dbbff57ae 100644 --- a/drivers/char/ipmi/ipmi_si_intf.c +++ b/drivers/char/ipmi/ipmi_si_intf.c @@ -2052,6 +2052,9 @@ static int oem_data_avail_to_receive_msg_avail(struct smi_info *smi_info) * IPMI Version = 0x51 IPMI 1.5 * Manufacturer ID = A2 02 00 Dell IANA * + * Additionally, PowerEdge systems with IPMI < 1.5 may also assert + * OEM0_DATA_AVAIL and needs to be treated as RECEIVE_MSG_AVAIL. + * */ #define DELL_POWEREDGE_8G_BMC_DEVICE_ID 0x20 #define DELL_POWEREDGE_8G_BMC_DEVICE_REV 0x80 @@ -2061,13 +2064,19 @@ static void setup_dell_poweredge_oem_data_handler(struct smi_info *smi_info) { struct ipmi_device_id *id = &smi_info->device_id; const char mfr[3]=DELL_IANA_MFR_ID; - if (! memcmp(mfr, id->manufacturer_id, sizeof(mfr)) - && (id->device_id == DELL_POWEREDGE_8G_BMC_DEVICE_ID) - && (id->device_revision == DELL_POWEREDGE_8G_BMC_DEVICE_REV) - && (id->ipmi_version == DELL_POWEREDGE_8G_BMC_IPMI_VERSION)) - { - smi_info->oem_data_avail_handler = - oem_data_avail_to_receive_msg_avail; + if (! memcmp(mfr, id->manufacturer_id, sizeof(mfr))) { + if (id->device_id == DELL_POWEREDGE_8G_BMC_DEVICE_ID && + id->device_revision == DELL_POWEREDGE_8G_BMC_DEVICE_REV && + id->ipmi_version == DELL_POWEREDGE_8G_BMC_IPMI_VERSION) { + smi_info->oem_data_avail_handler = + oem_data_avail_to_receive_msg_avail; + } + else if (ipmi_version_major(id) < 1 || + (ipmi_version_major(id) == 1 && + ipmi_version_minor(id) < 5)) { + smi_info->oem_data_avail_handler = + oem_data_avail_to_receive_msg_avail; + } } } diff --git a/drivers/char/ipmi/ipmi_smic_sm.c b/drivers/char/ipmi/ipmi_smic_sm.c index f17043da9dd5..39d7e5ef1a2b 100644 --- a/drivers/char/ipmi/ipmi_smic_sm.c +++ b/drivers/char/ipmi/ipmi_smic_sm.c @@ -85,6 +85,12 @@ enum smic_states { /* SMIC Flags Register Bits */ #define SMIC_RX_DATA_READY 0x80 #define SMIC_TX_DATA_READY 0x40 +/* + * SMIC_SMI and SMIC_EVM_DATA_AVAIL are only used by + * a few systems, and then only by Systems Management + * Interrupts, not by the OS. Always ignore these bits. + * + */ #define SMIC_SMI 0x10 #define SMIC_EVM_DATA_AVAIL 0x08 #define SMIC_SMS_DATA_AVAIL 0x04 @@ -368,8 +374,7 @@ static enum si_sm_result smic_event (struct si_sm_data *smic, long time) switch (smic->state) { case SMIC_IDLE: /* in IDLE we check for available messages */ - if (flags & (SMIC_SMI | - SMIC_EVM_DATA_AVAIL | SMIC_SMS_DATA_AVAIL)) + if (flags & SMIC_SMS_DATA_AVAIL) { return SI_SM_ATTN; } |