mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-25 07:10:50 +07:00
ipmi_si: Move the hotmod handling to another file.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
This commit is contained in:
Corey Minyard
parent
bb398a4cb0
commit
44814ec982
@ -2,7 +2,8 @@
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# Makefile for the ipmi drivers.
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#
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ipmi_si-y := ipmi_si_intf.o ipmi_kcs_sm.o ipmi_smic_sm.o ipmi_bt_sm.o
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ipmi_si-y := ipmi_si_intf.o ipmi_kcs_sm.o ipmi_smic_sm.o ipmi_bt_sm.o \
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ipmi_si_hotmod.o
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obj-$(CONFIG_IPMI_HANDLER) += ipmi_msghandler.o
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obj-$(CONFIG_IPMI_DEVICE_INTERFACE) += ipmi_devintf.o
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@ -20,3 +20,5 @@ void ipmi_irq_start_cleanup(struct si_sm_io *io);
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int ipmi_std_irq_setup(struct si_sm_io *io);
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void ipmi_irq_finish_setup(struct si_sm_io *io);
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int ipmi_si_remove_by_dev(struct device *dev);
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void ipmi_si_remove_by_data(int addr_space, enum si_type si_type,
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unsigned long addr);
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242
drivers/char/ipmi/ipmi_si_hotmod.c
Normal file
242
drivers/char/ipmi/ipmi_si_hotmod.c
Normal file
@ -0,0 +1,242 @@
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/*
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* ipmi_si_hotmod.c
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*
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* Handling for dynamically adding/removing IPMI devices through
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* a module parameter (and thus sysfs).
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*/
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#include <linux/moduleparam.h>
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#include <linux/ipmi.h>
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#include "ipmi_si.h"
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#define PFX "ipmi_hotmod: "
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static int hotmod_handler(const char *val, struct kernel_param *kp);
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module_param_call(hotmod, hotmod_handler, NULL, NULL, 0200);
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MODULE_PARM_DESC(hotmod, "Add and remove interfaces. See"
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" Documentation/IPMI.txt in the kernel sources for the"
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" gory details.");
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/*
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* Parms come in as <op1>[:op2[:op3...]]. ops are:
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* add|remove,kcs|bt|smic,mem|i/o,<address>[,<opt1>[,<opt2>[,...]]]
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* Options are:
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* rsp=<regspacing>
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* rsi=<regsize>
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* rsh=<regshift>
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* irq=<irq>
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* ipmb=<ipmb addr>
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*/
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enum hotmod_op { HM_ADD, HM_REMOVE };
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struct hotmod_vals {
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const char *name;
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const int val;
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};
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static const struct hotmod_vals hotmod_ops[] = {
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{ "add", HM_ADD },
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{ "remove", HM_REMOVE },
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{ NULL }
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};
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static const struct hotmod_vals hotmod_si[] = {
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{ "kcs", SI_KCS },
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{ "smic", SI_SMIC },
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{ "bt", SI_BT },
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{ NULL }
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};
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static const struct hotmod_vals hotmod_as[] = {
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{ "mem", IPMI_MEM_ADDR_SPACE },
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{ "i/o", IPMI_IO_ADDR_SPACE },
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{ NULL }
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};
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static int parse_str(const struct hotmod_vals *v, int *val, char *name,
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char **curr)
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{
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char *s;
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int i;
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s = strchr(*curr, ',');
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if (!s) {
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pr_warn(PFX "No hotmod %s given.\n", name);
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return -EINVAL;
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}
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*s = '\0';
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s++;
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for (i = 0; v[i].name; i++) {
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if (strcmp(*curr, v[i].name) == 0) {
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*val = v[i].val;
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*curr = s;
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return 0;
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}
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}
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pr_warn(PFX "Invalid hotmod %s '%s'\n", name, *curr);
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return -EINVAL;
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}
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static int check_hotmod_int_op(const char *curr, const char *option,
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const char *name, int *val)
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{
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char *n;
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if (strcmp(curr, name) == 0) {
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if (!option) {
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pr_warn(PFX "No option given for '%s'\n", curr);
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return -EINVAL;
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}
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*val = simple_strtoul(option, &n, 0);
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if ((*n != '\0') || (*option == '\0')) {
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pr_warn(PFX "Bad option given for '%s'\n", curr);
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return -EINVAL;
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}
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return 1;
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}
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return 0;
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}
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static int hotmod_handler(const char *val, struct kernel_param *kp)
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{
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char *str = kstrdup(val, GFP_KERNEL);
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int rv;
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char *next, *curr, *s, *n, *o;
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enum hotmod_op op;
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enum si_type si_type;
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int addr_space;
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unsigned long addr;
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int regspacing;
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int regsize;
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int regshift;
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int irq;
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int ipmb;
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int ival;
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int len;
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if (!str)
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return -ENOMEM;
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/* Kill any trailing spaces, as we can get a "\n" from echo. */
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len = strlen(str);
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ival = len - 1;
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while ((ival >= 0) && isspace(str[ival])) {
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str[ival] = '\0';
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ival--;
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}
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for (curr = str; curr; curr = next) {
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regspacing = 1;
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regsize = 1;
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regshift = 0;
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irq = 0;
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ipmb = 0; /* Choose the default if not specified */
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next = strchr(curr, ':');
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if (next) {
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*next = '\0';
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next++;
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}
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rv = parse_str(hotmod_ops, &ival, "operation", &curr);
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if (rv)
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break;
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op = ival;
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rv = parse_str(hotmod_si, &ival, "interface type", &curr);
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if (rv)
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break;
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si_type = ival;
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rv = parse_str(hotmod_as, &addr_space, "address space", &curr);
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if (rv)
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break;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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addr = simple_strtoul(curr, &n, 0);
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if ((*n != '\0') || (*curr == '\0')) {
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pr_warn(PFX "Invalid hotmod address '%s'\n", curr);
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break;
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}
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while (s) {
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curr = s;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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o = strchr(curr, '=');
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if (o) {
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*o = '\0';
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o++;
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}
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rv = check_hotmod_int_op(curr, o, "rsp", ®spacing);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsi", ®size);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsh", ®shift);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "irq", &irq);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "ipmb", &ipmb);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = -EINVAL;
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pr_warn(PFX "Invalid hotmod option '%s'\n", curr);
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goto out;
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}
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if (op == HM_ADD) {
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struct si_sm_io io;
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memset(&io, 0, sizeof(io));
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io.addr_source = SI_HOTMOD;
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io.si_type = si_type;
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io.addr_data = addr;
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io.addr_type = addr_space;
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io.addr = NULL;
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io.regspacing = regspacing;
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if (!io.regspacing)
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io.regspacing = DEFAULT_REGSPACING;
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io.regsize = regsize;
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if (!io.regsize)
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io.regsize = DEFAULT_REGSIZE;
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io.regshift = regshift;
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io.irq = irq;
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if (io.irq)
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io.irq_setup = ipmi_std_irq_setup;
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io.slave_addr = ipmb;
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rv = ipmi_si_add_smi(&io);
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if (rv)
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goto out;
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} else {
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ipmi_si_remove_by_data(addr_space, si_type, addr);
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}
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}
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rv = len;
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out:
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kfree(str);
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return rv;
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}
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@ -1310,13 +1310,6 @@ static unsigned int num_slave_addrs;
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static const char * const addr_space_to_str[] = { "i/o", "mem" };
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static int hotmod_handler(const char *val, struct kernel_param *kp);
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module_param_call(hotmod, hotmod_handler, NULL, NULL, 0200);
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MODULE_PARM_DESC(hotmod, "Add and remove interfaces. See"
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" Documentation/IPMI.txt in the kernel sources for the"
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" gory details.");
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#ifdef CONFIG_ACPI
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module_param_named(tryacpi, si_tryacpi, bool, 0);
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MODULE_PARM_DESC(tryacpi, "Setting this to zero will disable the"
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@ -1689,86 +1682,6 @@ static int mem_setup(struct si_sm_io *io)
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return 0;
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}
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/*
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* Parms come in as <op1>[:op2[:op3...]]. ops are:
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* add|remove,kcs|bt|smic,mem|i/o,<address>[,<opt1>[,<opt2>[,...]]]
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* Options are:
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* rsp=<regspacing>
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* rsi=<regsize>
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* rsh=<regshift>
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* irq=<irq>
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* ipmb=<ipmb addr>
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*/
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enum hotmod_op { HM_ADD, HM_REMOVE };
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struct hotmod_vals {
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const char *name;
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const int val;
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};
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static const struct hotmod_vals hotmod_ops[] = {
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{ "add", HM_ADD },
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{ "remove", HM_REMOVE },
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{ NULL }
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};
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static const struct hotmod_vals hotmod_si[] = {
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{ "kcs", SI_KCS },
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{ "smic", SI_SMIC },
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{ "bt", SI_BT },
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{ NULL }
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};
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static const struct hotmod_vals hotmod_as[] = {
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{ "mem", IPMI_MEM_ADDR_SPACE },
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{ "i/o", IPMI_IO_ADDR_SPACE },
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{ NULL }
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};
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static int parse_str(const struct hotmod_vals *v, int *val, char *name,
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char **curr)
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{
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char *s;
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int i;
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s = strchr(*curr, ',');
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if (!s) {
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pr_warn(PFX "No hotmod %s given.\n", name);
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return -EINVAL;
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}
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*s = '\0';
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s++;
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for (i = 0; v[i].name; i++) {
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if (strcmp(*curr, v[i].name) == 0) {
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*val = v[i].val;
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*curr = s;
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return 0;
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}
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}
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pr_warn(PFX "Invalid hotmod %s '%s'\n", name, *curr);
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return -EINVAL;
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}
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static int check_hotmod_int_op(const char *curr, const char *option,
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const char *name, int *val)
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{
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char *n;
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if (strcmp(curr, name) == 0) {
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if (!option) {
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pr_warn(PFX "No option given for '%s'\n", curr);
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return -EINVAL;
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}
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*val = simple_strtoul(option, &n, 0);
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if ((*n != '\0') || (*option == '\0')) {
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pr_warn(PFX "Bad option given for '%s'\n", curr);
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return -EINVAL;
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}
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return 1;
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}
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return 0;
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}
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static struct smi_info *smi_info_alloc(void)
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{
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struct smi_info *info = kzalloc(sizeof(*info), GFP_KERNEL);
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@ -1778,162 +1691,6 @@ static struct smi_info *smi_info_alloc(void)
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return info;
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}
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static int hotmod_handler(const char *val, struct kernel_param *kp)
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{
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char *str = kstrdup(val, GFP_KERNEL);
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int rv;
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char *next, *curr, *s, *n, *o;
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enum hotmod_op op;
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enum si_type si_type;
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int addr_space;
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unsigned long addr;
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int regspacing;
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int regsize;
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int regshift;
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int irq;
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int ipmb;
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int ival;
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int len;
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if (!str)
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return -ENOMEM;
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/* Kill any trailing spaces, as we can get a "\n" from echo. */
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len = strlen(str);
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ival = len - 1;
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while ((ival >= 0) && isspace(str[ival])) {
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str[ival] = '\0';
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ival--;
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}
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for (curr = str; curr; curr = next) {
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regspacing = 1;
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regsize = 1;
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regshift = 0;
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irq = 0;
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ipmb = 0; /* Choose the default if not specified */
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next = strchr(curr, ':');
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if (next) {
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*next = '\0';
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next++;
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}
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rv = parse_str(hotmod_ops, &ival, "operation", &curr);
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if (rv)
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break;
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op = ival;
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rv = parse_str(hotmod_si, &ival, "interface type", &curr);
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if (rv)
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break;
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si_type = ival;
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rv = parse_str(hotmod_as, &addr_space, "address space", &curr);
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if (rv)
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break;
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s = strchr(curr, ',');
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if (s) {
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*s = '\0';
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s++;
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}
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addr = simple_strtoul(curr, &n, 0);
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if ((*n != '\0') || (*curr == '\0')) {
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pr_warn(PFX "Invalid hotmod address '%s'\n", curr);
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break;
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}
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|
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while (s) {
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curr = s;
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s = strchr(curr, ',');
|
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if (s) {
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*s = '\0';
|
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s++;
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}
|
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o = strchr(curr, '=');
|
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if (o) {
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*o = '\0';
|
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o++;
|
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}
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rv = check_hotmod_int_op(curr, o, "rsp", ®spacing);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsi", ®size);
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "rsh", ®shift);
|
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
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rv = check_hotmod_int_op(curr, o, "irq", &irq);
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if (rv < 0)
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goto out;
|
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else if (rv)
|
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continue;
|
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rv = check_hotmod_int_op(curr, o, "ipmb", &ipmb);
|
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if (rv < 0)
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goto out;
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else if (rv)
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continue;
|
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|
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rv = -EINVAL;
|
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pr_warn(PFX "Invalid hotmod option '%s'\n", curr);
|
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goto out;
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}
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|
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if (op == HM_ADD) {
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struct si_sm_io io;
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|
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memset(&io, 0, sizeof(io));
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io.addr_source = SI_HOTMOD;
|
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io.si_type = si_type;
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io.addr_data = addr;
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io.addr_type = addr_space;
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io.addr = NULL;
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io.regspacing = regspacing;
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if (!io.regspacing)
|
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io.regspacing = DEFAULT_REGSPACING;
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io.regsize = regsize;
|
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if (!io.regsize)
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io.regsize = DEFAULT_REGSIZE;
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io.regshift = regshift;
|
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io.irq = irq;
|
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if (io.irq)
|
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io.irq_setup = ipmi_std_irq_setup;
|
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io.slave_addr = ipmb;
|
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|
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rv = ipmi_si_add_smi(&io);
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if (rv)
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goto out;
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||||
} else {
|
||||
/* remove */
|
||||
struct smi_info *e, *tmp_e;
|
||||
|
||||
mutex_lock(&smi_infos_lock);
|
||||
list_for_each_entry_safe(e, tmp_e, &smi_infos, link) {
|
||||
if (e->io.addr_type != addr_space)
|
||||
continue;
|
||||
if (e->io.si_type != si_type)
|
||||
continue;
|
||||
if (e->io.addr_data == addr)
|
||||
cleanup_one_si(e);
|
||||
}
|
||||
mutex_unlock(&smi_infos_lock);
|
||||
}
|
||||
}
|
||||
rv = len;
|
||||
out:
|
||||
kfree(str);
|
||||
return rv;
|
||||
}
|
||||
|
||||
static int hardcode_find_bmc(void)
|
||||
{
|
||||
int ret = -ENODEV;
|
||||
@ -3779,6 +3536,24 @@ int ipmi_si_remove_by_dev(struct device *dev)
|
||||
return rv;
|
||||
}
|
||||
|
||||
void ipmi_si_remove_by_data(int addr_space, enum si_type si_type,
|
||||
unsigned long addr)
|
||||
{
|
||||
/* remove */
|
||||
struct smi_info *e, *tmp_e;
|
||||
|
||||
mutex_lock(&smi_infos_lock);
|
||||
list_for_each_entry_safe(e, tmp_e, &smi_infos, link) {
|
||||
if (e->io.addr_type != addr_space)
|
||||
continue;
|
||||
if (e->io.si_type != si_type)
|
||||
continue;
|
||||
if (e->io.addr_data == addr)
|
||||
cleanup_one_si(e);
|
||||
}
|
||||
mutex_unlock(&smi_infos_lock);
|
||||
}
|
||||
|
||||
static void cleanup_ipmi_si(void)
|
||||
{
|
||||
struct smi_info *e, *tmp_e;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user