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-rw-r--r--drivers/scsi/qla4xxx/ql4_def.h3
-rw-r--r--drivers/scsi/qla4xxx/ql4_os.c193
2 files changed, 195 insertions, 1 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 776714d2d70d..0b2487631d52 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -272,7 +272,7 @@ struct ddb_entry {
* retried */
uint32_t default_time2wait; /* Default Min time between
* relogins (+aens) */
-
+ uint16_t chap_tbl_idx;
};
struct qla_ddb_index {
@@ -685,6 +685,7 @@ struct scsi_qla_host {
struct dma_pool *chap_dma_pool;
uint8_t *chap_list; /* CHAP table cache */
struct mutex chap_sem;
+
#define CHAP_DMA_BLOCK_SIZE 512
struct workqueue_struct *task_wq;
unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 877c0e220ac9..c6cfe324ab2f 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -121,6 +121,9 @@ static void qla4xxx_conn_get_stats(struct iscsi_cls_conn *cls_conn,
static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
uint32_t iface_type, uint32_t payload_size,
uint32_t pid, struct sockaddr *dst_addr);
+static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
+ uint32_t *num_entries, char *buf);
+static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
/*
* SCSI host template entry points
@@ -199,6 +202,8 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
.get_iface_param = qla4xxx_get_iface_param,
.bsg_request = qla4xxx_bsg_request,
.send_ping = qla4xxx_send_ping,
+ .get_chap = qla4xxx_get_chap_list,
+ .delete_chap = qla4xxx_delete_chap,
};
static struct scsi_transport_template *qla4xxx_scsi_transport;
@@ -342,6 +347,189 @@ static umode_t ql4_attr_is_visible(int param_type, int param)
return 0;
}
+static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
+ uint32_t *num_entries, char *buf)
+{
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct ql4_chap_table *chap_table;
+ struct iscsi_chap_rec *chap_rec;
+ int max_chap_entries = 0;
+ int valid_chap_entries = 0;
+ int ret = 0, i;
+
+ if (is_qla8022(ha))
+ max_chap_entries = (ha->hw.flt_chap_size / 2) /
+ sizeof(struct ql4_chap_table);
+ else
+ max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+ ql4_printk(KERN_INFO, ha, "%s: num_entries = %d, CHAP idx = %d\n",
+ __func__, *num_entries, chap_tbl_idx);
+
+ if (!buf) {
+ ret = -ENOMEM;
+ goto exit_get_chap_list;
+ }
+
+ chap_rec = (struct iscsi_chap_rec *) buf;
+ mutex_lock(&ha->chap_sem);
+ for (i = chap_tbl_idx; i < max_chap_entries; i++) {
+ chap_table = (struct ql4_chap_table *)ha->chap_list + i;
+ if (chap_table->cookie !=
+ __constant_cpu_to_le16(CHAP_VALID_COOKIE))
+ continue;
+
+ chap_rec->chap_tbl_idx = i;
+ strncpy(chap_rec->username, chap_table->name,
+ ISCSI_CHAP_AUTH_NAME_MAX_LEN);
+ strncpy(chap_rec->password, chap_table->secret,
+ QL4_CHAP_MAX_SECRET_LEN);
+ chap_rec->password_length = chap_table->secret_len;
+
+ if (chap_table->flags & BIT_7) /* local */
+ chap_rec->chap_type = CHAP_TYPE_OUT;
+
+ if (chap_table->flags & BIT_6) /* peer */
+ chap_rec->chap_type = CHAP_TYPE_IN;
+
+ chap_rec++;
+
+ valid_chap_entries++;
+ if (valid_chap_entries == *num_entries)
+ break;
+ else
+ continue;
+ }
+ mutex_unlock(&ha->chap_sem);
+
+exit_get_chap_list:
+ ql4_printk(KERN_INFO, ha, "%s: Valid CHAP Entries = %d\n",
+ __func__, valid_chap_entries);
+ *num_entries = valid_chap_entries;
+ return ret;
+}
+
+static int __qla4xxx_is_chap_active(struct device *dev, void *data)
+{
+ int ret = 0;
+ uint16_t *chap_tbl_idx = (uint16_t *) data;
+ struct iscsi_cls_session *cls_session;
+ struct iscsi_session *sess;
+ struct ddb_entry *ddb_entry;
+
+ if (!iscsi_is_session_dev(dev))
+ goto exit_is_chap_active;
+
+ cls_session = iscsi_dev_to_session(dev);
+ sess = cls_session->dd_data;
+ ddb_entry = sess->dd_data;
+
+ if (iscsi_session_chkready(cls_session))
+ goto exit_is_chap_active;
+
+ if (ddb_entry->chap_tbl_idx == *chap_tbl_idx)
+ ret = 1;
+
+exit_is_chap_active:
+ return ret;
+}
+
+static int qla4xxx_is_chap_active(struct Scsi_Host *shost,
+ uint16_t chap_tbl_idx)
+{
+ int ret = 0;
+
+ ret = device_for_each_child(&shost->shost_gendev, &chap_tbl_idx,
+ __qla4xxx_is_chap_active);
+
+ return ret;
+}
+
+static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx)
+{
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ struct ql4_chap_table *chap_table;
+ dma_addr_t chap_dma;
+ int max_chap_entries = 0;
+ uint32_t offset = 0;
+ uint32_t chap_size;
+ int ret = 0;
+
+ chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
+ if (chap_table == NULL)
+ return -ENOMEM;
+
+ memset(chap_table, 0, sizeof(struct ql4_chap_table));
+
+ if (is_qla8022(ha))
+ max_chap_entries = (ha->hw.flt_chap_size / 2) /
+ sizeof(struct ql4_chap_table);
+ else
+ max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+ if (chap_tbl_idx > max_chap_entries) {
+ ret = -EINVAL;
+ goto exit_delete_chap;
+ }
+
+ /* Check if chap index is in use.
+ * If chap is in use don't delet chap entry */
+ ret = qla4xxx_is_chap_active(shost, chap_tbl_idx);
+ if (ret) {
+ ql4_printk(KERN_INFO, ha, "CHAP entry %d is in use, cannot "
+ "delete from flash\n", chap_tbl_idx);
+ ret = -EBUSY;
+ goto exit_delete_chap;
+ }
+
+ chap_size = sizeof(struct ql4_chap_table);
+ if (is_qla40XX(ha))
+ offset = FLASH_CHAP_OFFSET | (chap_tbl_idx * chap_size);
+ else {
+ offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
+ /* flt_chap_size is CHAP table size for both ports
+ * so divide it by 2 to calculate the offset for second port
+ */
+ if (ha->port_num == 1)
+ offset += (ha->hw.flt_chap_size / 2);
+ offset += (chap_tbl_idx * chap_size);
+ }
+
+ ret = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
+ if (ret != QLA_SUCCESS) {
+ ret = -EINVAL;
+ goto exit_delete_chap;
+ }
+
+ DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
+ __le16_to_cpu(chap_table->cookie)));
+
+ if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
+ ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
+ goto exit_delete_chap;
+ }
+
+ chap_table->cookie = __constant_cpu_to_le16(0xFFFF);
+
+ offset = FLASH_CHAP_OFFSET |
+ (chap_tbl_idx * sizeof(struct ql4_chap_table));
+ ret = qla4xxx_set_flash(ha, chap_dma, offset, chap_size,
+ FLASH_OPT_RMW_COMMIT);
+ if (ret == QLA_SUCCESS && ha->chap_list) {
+ mutex_lock(&ha->chap_sem);
+ /* Update ha chap_list cache */
+ memcpy((struct ql4_chap_table *)ha->chap_list + chap_tbl_idx,
+ chap_table, sizeof(struct ql4_chap_table));
+ mutex_unlock(&ha->chap_sem);
+ }
+ if (ret != QLA_SUCCESS)
+ ret = -EINVAL;
+
+exit_delete_chap:
+ dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
+ return ret;
+}
+
static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
enum iscsi_param_type param_type,
int param, char *buf)
@@ -1638,13 +1826,17 @@ static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
{
int buflen = 0;
struct iscsi_session *sess;
+ struct ddb_entry *ddb_entry;
struct iscsi_conn *conn;
char ip_addr[DDB_IPADDR_LEN];
uint16_t options = 0;
sess = cls_sess->dd_data;
+ ddb_entry = sess->dd_data;
conn = cls_conn->dd_data;
+ ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
+
conn->max_recv_dlength = BYTE_UNITS *
le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
@@ -1772,6 +1964,7 @@ void qla4xxx_update_session_conn_param(struct scsi_qla_host *ha,
le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
/* Update params */
+ ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
conn->max_recv_dlength = BYTE_UNITS *
le16_to_cpu(fw_ddb_entry->iscsi_max_rcv_data_seg_len);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-16 17:12:24 +0200