forked from Minki/linux
[PATCH] ipmi: add per-channel IPMB addresses
IPMI allows multiple IPMB channels on a single interface, and each channel might have a different IPMB address. However, the driver has only one IPMB address that it uses for everything. This patch adds new IOCTLS and a new internal interface for setting per-channel IPMB addresses and LUNs. New systems are coming out with support for multiple IPMB channels, and they are broken without this patch. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Corey Minyard
Linus Torvalds
parent
b224cd3a0c
commit
c14979b993
@ -411,6 +411,7 @@ static int ipmi_ioctl(struct inode *inode,
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break;
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}
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/* The next four are legacy, not per-channel. */
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case IPMICTL_SET_MY_ADDRESS_CMD:
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{
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unsigned int val;
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@ -420,22 +421,25 @@ static int ipmi_ioctl(struct inode *inode,
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break;
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}
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ipmi_set_my_address(priv->user, val);
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rv = 0;
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rv = ipmi_set_my_address(priv->user, 0, val);
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break;
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}
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case IPMICTL_GET_MY_ADDRESS_CMD:
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{
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unsigned int val;
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unsigned int val;
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unsigned char rval;
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val = ipmi_get_my_address(priv->user);
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rv = ipmi_get_my_address(priv->user, 0, &rval);
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if (rv)
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break;
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val = rval;
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if (copy_to_user(arg, &val, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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rv = 0;
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break;
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}
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@ -448,24 +452,94 @@ static int ipmi_ioctl(struct inode *inode,
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break;
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}
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ipmi_set_my_LUN(priv->user, val);
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rv = 0;
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rv = ipmi_set_my_LUN(priv->user, 0, val);
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break;
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}
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case IPMICTL_GET_MY_LUN_CMD:
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{
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unsigned int val;
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unsigned int val;
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unsigned char rval;
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val = ipmi_get_my_LUN(priv->user);
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rv = ipmi_get_my_LUN(priv->user, 0, &rval);
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if (rv)
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break;
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val = rval;
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if (copy_to_user(arg, &val, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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rv = 0;
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break;
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}
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case IPMICTL_SET_MY_CHANNEL_ADDRESS_CMD:
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{
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struct ipmi_channel_lun_address_set val;
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if (copy_from_user(&val, arg, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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return ipmi_set_my_address(priv->user, val.channel, val.value);
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break;
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}
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case IPMICTL_GET_MY_CHANNEL_ADDRESS_CMD:
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{
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struct ipmi_channel_lun_address_set val;
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if (copy_from_user(&val, arg, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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rv = ipmi_get_my_address(priv->user, val.channel, &val.value);
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if (rv)
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break;
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if (copy_to_user(arg, &val, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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break;
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}
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case IPMICTL_SET_MY_CHANNEL_LUN_CMD:
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{
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struct ipmi_channel_lun_address_set val;
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if (copy_from_user(&val, arg, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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rv = ipmi_set_my_LUN(priv->user, val.channel, val.value);
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break;
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}
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case IPMICTL_GET_MY_CHANNEL_LUN_CMD:
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{
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struct ipmi_channel_lun_address_set val;
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if (copy_from_user(&val, arg, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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rv = ipmi_get_my_LUN(priv->user, val.channel, &val.value);
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if (rv)
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break;
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if (copy_to_user(arg, &val, sizeof(val))) {
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rv = -EFAULT;
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break;
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}
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break;
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}
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case IPMICTL_SET_TIMING_PARMS_CMD:
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{
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struct ipmi_timing_parms parms;
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@ -124,6 +124,14 @@ struct ipmi_channel
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{
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unsigned char medium;
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unsigned char protocol;
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/* My slave address. This is initialized to IPMI_BMC_SLAVE_ADDR,
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but may be changed by the user. */
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unsigned char address;
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/* My LUN. This should generally stay the SMS LUN, but just in
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case... */
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unsigned char lun;
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};
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#ifdef CONFIG_PROC_FS
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@ -135,7 +143,7 @@ struct ipmi_proc_entry
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#endif
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#define IPMI_IPMB_NUM_SEQ 64
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#define IPMI_MAX_CHANNELS 8
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#define IPMI_MAX_CHANNELS 16
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struct ipmi_smi
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{
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/* What interface number are we? */
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@ -199,14 +207,6 @@ struct ipmi_smi
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this is registered. */
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ipmi_user_t all_cmd_rcvr;
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/* My slave address. This is initialized to IPMI_BMC_SLAVE_ADDR,
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but may be changed by the user. */
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unsigned char my_address;
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/* My LUN. This should generally stay the SMS LUN, but just in
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case... */
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unsigned char my_lun;
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/* The event receiver for my BMC, only really used at panic
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shutdown as a place to store this. */
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unsigned char event_receiver;
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@ -766,26 +766,44 @@ void ipmi_get_version(ipmi_user_t user,
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*minor = user->intf->version_minor;
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}
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void ipmi_set_my_address(ipmi_user_t user,
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unsigned char address)
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int ipmi_set_my_address(ipmi_user_t user,
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unsigned int channel,
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unsigned char address)
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{
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user->intf->my_address = address;
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if (channel >= IPMI_MAX_CHANNELS)
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return -EINVAL;
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user->intf->channels[channel].address = address;
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return 0;
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}
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unsigned char ipmi_get_my_address(ipmi_user_t user)
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int ipmi_get_my_address(ipmi_user_t user,
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unsigned int channel,
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unsigned char *address)
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{
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return user->intf->my_address;
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if (channel >= IPMI_MAX_CHANNELS)
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return -EINVAL;
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*address = user->intf->channels[channel].address;
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return 0;
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}
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void ipmi_set_my_LUN(ipmi_user_t user,
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unsigned char LUN)
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int ipmi_set_my_LUN(ipmi_user_t user,
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unsigned int channel,
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unsigned char LUN)
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{
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user->intf->my_lun = LUN & 0x3;
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if (channel >= IPMI_MAX_CHANNELS)
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return -EINVAL;
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user->intf->channels[channel].lun = LUN & 0x3;
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return 0;
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}
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unsigned char ipmi_get_my_LUN(ipmi_user_t user)
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int ipmi_get_my_LUN(ipmi_user_t user,
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unsigned int channel,
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unsigned char *address)
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{
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return user->intf->my_lun;
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if (channel >= IPMI_MAX_CHANNELS)
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return -EINVAL;
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*address = user->intf->channels[channel].lun;
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return 0;
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}
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int ipmi_set_gets_events(ipmi_user_t user, int val)
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@ -1213,7 +1231,7 @@ static inline int i_ipmi_request(ipmi_user_t user,
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unsigned char ipmb_seq;
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long seqid;
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if (addr->channel > IPMI_NUM_CHANNELS) {
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if (addr->channel >= IPMI_NUM_CHANNELS) {
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spin_lock_irqsave(&intf->counter_lock, flags);
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intf->sent_invalid_commands++;
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spin_unlock_irqrestore(&intf->counter_lock, flags);
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@ -1346,6 +1364,18 @@ static inline int i_ipmi_request(ipmi_user_t user,
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return rv;
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}
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static int check_addr(ipmi_smi_t intf,
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struct ipmi_addr *addr,
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unsigned char *saddr,
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unsigned char *lun)
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{
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if (addr->channel >= IPMI_MAX_CHANNELS)
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return -EINVAL;
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*lun = intf->channels[addr->channel].lun;
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*saddr = intf->channels[addr->channel].address;
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return 0;
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}
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int ipmi_request_settime(ipmi_user_t user,
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struct ipmi_addr *addr,
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long msgid,
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@ -1355,6 +1385,12 @@ int ipmi_request_settime(ipmi_user_t user,
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int retries,
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unsigned int retry_time_ms)
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{
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unsigned char saddr, lun;
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int rv;
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rv = check_addr(user->intf, addr, &saddr, &lun);
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if (rv)
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return rv;
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return i_ipmi_request(user,
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user->intf,
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addr,
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@ -1363,8 +1399,8 @@ int ipmi_request_settime(ipmi_user_t user,
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user_msg_data,
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NULL, NULL,
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priority,
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user->intf->my_address,
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user->intf->my_lun,
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saddr,
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lun,
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retries,
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retry_time_ms);
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}
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@ -1378,6 +1414,12 @@ int ipmi_request_supply_msgs(ipmi_user_t user,
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struct ipmi_recv_msg *supplied_recv,
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int priority)
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{
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unsigned char saddr, lun;
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int rv;
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rv = check_addr(user->intf, addr, &saddr, &lun);
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if (rv)
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return rv;
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return i_ipmi_request(user,
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user->intf,
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addr,
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@ -1387,8 +1429,8 @@ int ipmi_request_supply_msgs(ipmi_user_t user,
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supplied_smi,
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supplied_recv,
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priority,
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user->intf->my_address,
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user->intf->my_lun,
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saddr,
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lun,
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-1, 0);
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}
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@ -1397,8 +1439,15 @@ static int ipmb_file_read_proc(char *page, char **start, off_t off,
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{
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char *out = (char *) page;
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ipmi_smi_t intf = data;
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int i;
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int rv= 0;
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return sprintf(out, "%x\n", intf->my_address);
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for (i=0; i<IPMI_MAX_CHANNELS; i++)
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rv += sprintf(out+rv, "%x ", intf->channels[i].address);
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out[rv-1] = '\n'; /* Replace the final space with a newline */
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out[rv] = '\0';
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rv++;
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return rv;
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}
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static int version_file_read_proc(char *page, char **start, off_t off,
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@ -1592,8 +1641,8 @@ send_channel_info_cmd(ipmi_smi_t intf, int chan)
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NULL,
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NULL,
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0,
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intf->my_address,
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intf->my_lun,
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intf->channels[0].address,
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intf->channels[0].lun,
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-1, 0);
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}
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@ -1696,11 +1745,13 @@ int ipmi_register_smi(struct ipmi_smi_handlers *handlers,
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new_intf->intf_num = i;
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new_intf->version_major = version_major;
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new_intf->version_minor = version_minor;
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if (slave_addr == 0)
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new_intf->my_address = IPMI_BMC_SLAVE_ADDR;
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else
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new_intf->my_address = slave_addr;
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new_intf->my_lun = 2; /* the SMS LUN. */
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for (j=0; j<IPMI_MAX_CHANNELS; j++) {
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new_intf->channels[j].address
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= IPMI_BMC_SLAVE_ADDR;
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new_intf->channels[j].lun = 2;
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}
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if (slave_addr != 0)
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new_intf->channels[0].address = slave_addr;
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rwlock_init(&(new_intf->users_lock));
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INIT_LIST_HEAD(&(new_intf->users));
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new_intf->handlers = handlers;
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@ -1985,7 +2036,7 @@ static int handle_ipmb_get_msg_cmd(ipmi_smi_t intf,
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msg->data[3] = msg->rsp[6];
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msg->data[4] = ((netfn + 1) << 2) | (msg->rsp[7] & 0x3);
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msg->data[5] = ipmb_checksum(&(msg->data[3]), 2);
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msg->data[6] = intf->my_address;
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msg->data[6] = intf->channels[msg->rsp[3] & 0xf].address;
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/* rqseq/lun */
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msg->data[7] = (msg->rsp[7] & 0xfc) | (msg->rsp[4] & 0x3);
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msg->data[8] = msg->rsp[8]; /* cmd */
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@ -2919,8 +2970,8 @@ static void send_panic_events(char *str)
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&smi_msg,
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&recv_msg,
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0,
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intf->my_address,
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intf->my_lun,
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intf->channels[0].address,
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intf->channels[0].lun,
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0, 1); /* Don't retry, and don't wait. */
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}
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@ -2965,8 +3016,8 @@ static void send_panic_events(char *str)
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&smi_msg,
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&recv_msg,
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0,
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intf->my_address,
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intf->my_lun,
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intf->channels[0].address,
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intf->channels[0].lun,
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0, 1); /* Don't retry, and don't wait. */
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if (intf->local_event_generator) {
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@ -2985,8 +3036,8 @@ static void send_panic_events(char *str)
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&smi_msg,
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&recv_msg,
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0,
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intf->my_address,
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intf->my_lun,
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intf->channels[0].address,
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intf->channels[0].lun,
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0, 1); /* no retry, and no wait. */
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}
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intf->null_user_handler = NULL;
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@ -2996,7 +3047,7 @@ static void send_panic_events(char *str)
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be zero, and it must not be my address. */
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if (((intf->event_receiver & 1) == 0)
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&& (intf->event_receiver != 0)
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&& (intf->event_receiver != intf->my_address))
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&& (intf->event_receiver != intf->channels[0].address))
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{
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/* The event receiver is valid, send an IPMB
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message. */
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@ -3031,7 +3082,7 @@ static void send_panic_events(char *str)
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data[0] = 0;
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data[1] = 0;
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data[2] = 0xf0; /* OEM event without timestamp. */
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data[3] = intf->my_address;
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data[3] = intf->channels[0].address;
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data[4] = j++; /* sequence # */
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/* Always give 11 bytes, so strncpy will fill
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it with zeroes for me. */
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@ -3047,8 +3098,8 @@ static void send_panic_events(char *str)
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&smi_msg,
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&recv_msg,
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0,
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intf->my_address,
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intf->my_lun,
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intf->channels[0].address,
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intf->channels[0].lun,
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0, 1); /* no retry, and no wait. */
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}
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}
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@ -298,13 +298,19 @@ void ipmi_get_version(ipmi_user_t user,
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this user, so it will affect all users of this interface. This is
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so some initialization code can come in and do the OEM-specific
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things it takes to determine your address (if not the BMC) and set
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it for everyone else. */
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void ipmi_set_my_address(ipmi_user_t user,
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unsigned char address);
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unsigned char ipmi_get_my_address(ipmi_user_t user);
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void ipmi_set_my_LUN(ipmi_user_t user,
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unsigned char LUN);
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unsigned char ipmi_get_my_LUN(ipmi_user_t user);
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it for everyone else. Note that each channel can have its own address. */
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int ipmi_set_my_address(ipmi_user_t user,
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unsigned int channel,
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unsigned char address);
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int ipmi_get_my_address(ipmi_user_t user,
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unsigned int channel,
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unsigned char *address);
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int ipmi_set_my_LUN(ipmi_user_t user,
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unsigned int channel,
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unsigned char LUN);
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int ipmi_get_my_LUN(ipmi_user_t user,
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unsigned int channel,
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unsigned char *LUN);
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/*
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* Like ipmi_request, but lets you specify the number of retries and
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@ -585,6 +591,16 @@ struct ipmi_cmdspec
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* things it takes to determine your address (if not the BMC) and set
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* it for everyone else. You should probably leave the LUN alone.
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*/
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struct ipmi_channel_lun_address_set
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{
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unsigned short channel;
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unsigned char value;
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};
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#define IPMICTL_SET_MY_CHANNEL_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 24, struct ipmi_channel_lun_address_set)
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#define IPMICTL_GET_MY_CHANNEL_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 25, struct ipmi_channel_lun_address_set)
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#define IPMICTL_SET_MY_CHANNEL_LUN_CMD _IOR(IPMI_IOC_MAGIC, 26, struct ipmi_channel_lun_address_set)
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#define IPMICTL_GET_MY_CHANNEL_LUN_CMD _IOR(IPMI_IOC_MAGIC, 27, struct ipmi_channel_lun_address_set)
|
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/* Legacy interfaces, these only set IPMB 0. */
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#define IPMICTL_SET_MY_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 17, unsigned int)
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#define IPMICTL_GET_MY_ADDRESS_CMD _IOR(IPMI_IOC_MAGIC, 18, unsigned int)
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#define IPMICTL_SET_MY_LUN_CMD _IOR(IPMI_IOC_MAGIC, 19, unsigned int)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user