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Diffstat (limited to 'drivers/s390/net')
-rw-r--r--drivers/s390/net/Kconfig3
-rw-r--r--drivers/s390/net/ism.h7
-rw-r--r--drivers/s390/net/ism_drv.c150
3 files changed, 65 insertions, 95 deletions
diff --git a/drivers/s390/net/Kconfig b/drivers/s390/net/Kconfig
index 4902d45e929c..c61e6427384c 100644
--- a/drivers/s390/net/Kconfig
+++ b/drivers/s390/net/Kconfig
@@ -103,10 +103,11 @@ config CCWGROUP
config ISM
tristate "Support for ISM vPCI Adapter"
depends on PCI
+ imply SMC
default n
help
Select this option if you want to use the Internal Shared Memory
- vPCI Adapter.
+ vPCI Adapter. The adapter can be used with the SMC network protocol.
To compile as a module choose M. The module name is ism.
If unsure, choose N.
diff --git a/drivers/s390/net/ism.h b/drivers/s390/net/ism.h
index 70c5bbda0fea..047fa6101555 100644
--- a/drivers/s390/net/ism.h
+++ b/drivers/s390/net/ism.h
@@ -16,7 +16,6 @@
*/
#define ISM_DMB_WORD_OFFSET 1
#define ISM_DMB_BIT_OFFSET (ISM_DMB_WORD_OFFSET * 32)
-#define ISM_IDENT_MASK 0x00FFFF
#define ISM_REG_SBA 0x1
#define ISM_REG_IEQ 0x2
@@ -192,12 +191,6 @@ struct ism_sba {
#define ISM_CREATE_REQ(dmb, idx, sf, offset) \
((dmb) | (idx) << 24 | (sf) << 23 | (offset))
-struct ism_systemeid {
- u8 seid_string[24];
- u8 serial_number[4];
- u8 type[4];
-};
-
static inline void __ism_read_cmd(struct ism_dev *ism, void *data,
unsigned long offset, unsigned long len)
{
diff --git a/drivers/s390/net/ism_drv.c b/drivers/s390/net/ism_drv.c
index 6df7f377d2f9..2c8e964425dc 100644
--- a/drivers/s390/net/ism_drv.c
+++ b/drivers/s390/net/ism_drv.c
@@ -30,13 +30,13 @@ static const struct pci_device_id ism_device_table[] = {
MODULE_DEVICE_TABLE(pci, ism_device_table);
static debug_info_t *ism_debug_info;
-static const struct smcd_ops ism_ops;
#define NO_CLIENT 0xff /* must be >= MAX_CLIENTS */
static struct ism_client *clients[MAX_CLIENTS]; /* use an array rather than */
/* a list for fast mapping */
static u8 max_client;
static DEFINE_MUTEX(clients_lock);
+static bool ism_v2_capable;
struct ism_dev_list {
struct list_head list;
struct mutex mutex; /* protects ism device list */
@@ -289,22 +289,6 @@ out:
return ret;
}
-static int ism_query_rgid(struct ism_dev *ism, u64 rgid, u32 vid_valid,
- u32 vid)
-{
- union ism_query_rgid cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.request.hdr.cmd = ISM_QUERY_RGID;
- cmd.request.hdr.len = sizeof(cmd.request);
-
- cmd.request.rgid = rgid;
- cmd.request.vlan_valid = vid_valid;
- cmd.request.vlan_id = vid;
-
- return ism_cmd(ism, &cmd);
-}
-
static void ism_free_dmb(struct ism_dev *ism, struct ism_dmb *dmb)
{
clear_bit(dmb->sba_idx, ism->sba_bitmap);
@@ -429,23 +413,6 @@ static int ism_del_vlan_id(struct ism_dev *ism, u64 vlan_id)
return ism_cmd(ism, &cmd);
}
-static int ism_signal_ieq(struct ism_dev *ism, u64 rgid, u32 trigger_irq,
- u32 event_code, u64 info)
-{
- union ism_sig_ieq cmd;
-
- memset(&cmd, 0, sizeof(cmd));
- cmd.request.hdr.cmd = ISM_SIGNAL_IEQ;
- cmd.request.hdr.len = sizeof(cmd.request);
-
- cmd.request.rgid = rgid;
- cmd.request.trigger_irq = trigger_irq;
- cmd.request.event_code = event_code;
- cmd.request.info = info;
-
- return ism_cmd(ism, &cmd);
-}
-
static unsigned int max_bytes(unsigned int start, unsigned int len,
unsigned int boundary)
{
@@ -477,40 +444,6 @@ int ism_move(struct ism_dev *ism, u64 dmb_tok, unsigned int idx, bool sf,
}
EXPORT_SYMBOL_GPL(ism_move);
-static struct ism_systemeid SYSTEM_EID = {
- .seid_string = "IBM-SYSZ-ISMSEID00000000",
- .serial_number = "0000",
- .type = "0000",
-};
-
-static void ism_create_system_eid(void)
-{
- struct cpuid id;
- u16 ident_tail;
- char tmp[5];
-
- get_cpu_id(&id);
- ident_tail = (u16)(id.ident & ISM_IDENT_MASK);
- snprintf(tmp, 5, "%04X", ident_tail);
- memcpy(&SYSTEM_EID.serial_number, tmp, 4);
- snprintf(tmp, 5, "%04X", id.machine);
- memcpy(&SYSTEM_EID.type, tmp, 4);
-}
-
-u8 *ism_get_seid(void)
-{
- return SYSTEM_EID.seid_string;
-}
-EXPORT_SYMBOL_GPL(ism_get_seid);
-
-static u16 ism_get_chid(struct ism_dev *ism)
-{
- if (!ism || !ism->pdev)
- return 0;
-
- return to_zpci(ism->pdev)->pchid;
-}
-
static void ism_handle_event(struct ism_dev *ism)
{
struct ism_event *entry;
@@ -569,11 +502,6 @@ static irqreturn_t ism_handle_irq(int irq, void *data)
return IRQ_HANDLED;
}
-static u64 ism_get_local_gid(struct ism_dev *ism)
-{
- return ism->local_gid;
-}
-
static int ism_dev_init(struct ism_dev *ism)
{
struct pci_dev *pdev = ism->pdev;
@@ -607,7 +535,9 @@ static int ism_dev_init(struct ism_dev *ism)
if (!ism_add_vlan_id(ism, ISM_RESERVED_VLANID))
/* hardware is V2 capable */
- ism_create_system_eid();
+ ism_v2_capable = true;
+ else
+ ism_v2_capable = false;
mutex_lock(&ism_dev_list.mutex);
mutex_lock(&clients_lock);
@@ -712,8 +642,7 @@ static void ism_dev_exit(struct ism_dev *ism)
}
mutex_unlock(&clients_lock);
- if (SYSTEM_EID.serial_number[0] != '0' ||
- SYSTEM_EID.type[0] != '0')
+ if (ism_v2_capable)
ism_del_vlan_id(ism, ISM_RESERVED_VLANID);
unregister_ieq(ism);
unregister_sba(ism);
@@ -774,10 +703,26 @@ module_exit(ism_exit);
/*************************** SMC-D Implementation *****************************/
#if IS_ENABLED(CONFIG_SMC)
-static int smcd_query_rgid(struct smcd_dev *smcd, u64 rgid, u32 vid_valid,
- u32 vid)
+static int ism_query_rgid(struct ism_dev *ism, u64 rgid, u32 vid_valid,
+ u32 vid)
{
- return ism_query_rgid(smcd->priv, rgid, vid_valid, vid);
+ union ism_query_rgid cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.request.hdr.cmd = ISM_QUERY_RGID;
+ cmd.request.hdr.len = sizeof(cmd.request);
+
+ cmd.request.rgid = rgid;
+ cmd.request.vlan_valid = vid_valid;
+ cmd.request.vlan_id = vid;
+
+ return ism_cmd(ism, &cmd);
+}
+
+static int smcd_query_rgid(struct smcd_dev *smcd, struct smcd_gid *rgid,
+ u32 vid_valid, u32 vid)
+{
+ return ism_query_rgid(smcd->priv, rgid->gid, vid_valid, vid);
}
static int smcd_register_dmb(struct smcd_dev *smcd, struct smcd_dmb *dmb,
@@ -811,10 +756,28 @@ static int smcd_reset_vlan_required(struct smcd_dev *smcd)
return ism_cmd_simple(smcd->priv, ISM_RESET_VLAN);
}
-static int smcd_signal_ieq(struct smcd_dev *smcd, u64 rgid, u32 trigger_irq,
- u32 event_code, u64 info)
+static int ism_signal_ieq(struct ism_dev *ism, u64 rgid, u32 trigger_irq,
+ u32 event_code, u64 info)
+{
+ union ism_sig_ieq cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.request.hdr.cmd = ISM_SIGNAL_IEQ;
+ cmd.request.hdr.len = sizeof(cmd.request);
+
+ cmd.request.rgid = rgid;
+ cmd.request.trigger_irq = trigger_irq;
+ cmd.request.event_code = event_code;
+ cmd.request.info = info;
+
+ return ism_cmd(ism, &cmd);
+}
+
+static int smcd_signal_ieq(struct smcd_dev *smcd, struct smcd_gid *rgid,
+ u32 trigger_irq, u32 event_code, u64 info)
{
- return ism_signal_ieq(smcd->priv, rgid, trigger_irq, event_code, info);
+ return ism_signal_ieq(smcd->priv, rgid->gid,
+ trigger_irq, event_code, info);
}
static int smcd_move(struct smcd_dev *smcd, u64 dmb_tok, unsigned int idx,
@@ -826,13 +789,27 @@ static int smcd_move(struct smcd_dev *smcd, u64 dmb_tok, unsigned int idx,
static int smcd_supports_v2(void)
{
- return SYSTEM_EID.serial_number[0] != '0' ||
- SYSTEM_EID.type[0] != '0';
+ return ism_v2_capable;
}
-static u64 smcd_get_local_gid(struct smcd_dev *smcd)
+static u64 ism_get_local_gid(struct ism_dev *ism)
{
- return ism_get_local_gid(smcd->priv);
+ return ism->local_gid;
+}
+
+static void smcd_get_local_gid(struct smcd_dev *smcd,
+ struct smcd_gid *smcd_gid)
+{
+ smcd_gid->gid = ism_get_local_gid(smcd->priv);
+ smcd_gid->gid_ext = 0;
+}
+
+static u16 ism_get_chid(struct ism_dev *ism)
+{
+ if (!ism || !ism->pdev)
+ return 0;
+
+ return to_zpci(ism->pdev)->pchid;
}
static u16 smcd_get_chid(struct smcd_dev *smcd)
@@ -858,7 +835,6 @@ static const struct smcd_ops ism_ops = {
.signal_event = smcd_signal_ieq,
.move_data = smcd_move,
.supports_v2 = smcd_supports_v2,
- .get_system_eid = ism_get_seid,
.get_local_gid = smcd_get_local_gid,
.get_chid = smcd_get_chid,
.get_dev = smcd_get_dev,
generated by cgit v1.2.3 (git 2.39.0) at 2025-02-15 06:36:25 +0300