mirror of https://gitee.com/openkylin/linux.git
[SCSI] qla4xxx: do not retry login to CHAP auth failed targets
Per RFC 3720, Login Response Status Code 0x02 should not be retried. Condensed connection error checking code to a single routine, and added check for status class 0x02. Signed-off-by: Karen Higgins <karen.higgins@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Signed-off-by: Ravi Anand <ravi.anand@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Vikas Chaudhary
James Bottomley
parent
c301b0266c
commit
821d6e5413
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@ -67,11 +67,12 @@ struct srb * qla4xxx_del_from_active_array(struct scsi_qla_host *ha,
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uint32_t index);
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void qla4xxx_srb_compl(struct scsi_qla_host *ha, struct srb *srb);
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int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host * ha);
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int qla4xxx_process_ddb_changed(struct scsi_qla_host * ha,
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uint32_t fw_ddb_index, uint32_t state);
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int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
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uint32_t state, uint32_t conn_error);
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void qla4xxx_dump_buffer(void *b, uint32_t size);
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int qla4xxx_send_marker_iocb(struct scsi_qla_host *ha,
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struct ddb_entry *ddb_entry, int lun, uint16_t mrkr_mod);
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int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err);
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extern int ql4xextended_error_logging;
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extern int ql4xdiscoverywait;
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@ -505,6 +505,7 @@ static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
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struct dev_db_entry *fw_ddb_entry = NULL;
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dma_addr_t fw_ddb_entry_dma;
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int status = QLA_ERROR;
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uint32_t conn_err;
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if (ddb_entry == NULL) {
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DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
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@ -525,7 +526,7 @@ static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
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if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
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fw_ddb_entry_dma, NULL, NULL,
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&ddb_entry->fw_ddb_device_state, NULL,
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&ddb_entry->fw_ddb_device_state, &conn_err,
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&ddb_entry->tcp_source_port_num,
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&ddb_entry->connection_id) ==
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QLA_ERROR) {
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@ -578,12 +579,26 @@ static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
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fw_ddb_entry->link_local_ipv6_addr,
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min(sizeof(ddb_entry->link_local_ipv6_addr),
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sizeof(fw_ddb_entry->link_local_ipv6_addr)));
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}
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DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n",
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ha->host_no, __func__, fw_ddb_index,
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ddb_entry->fw_ddb_device_state, status));
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DEBUG2(dev_info(&ha->pdev->dev, "%s: DDB[%d] osIdx = %d "
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"State %04x ConnErr %08x IP %pI6 "
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":%04d \"%s\"\n",
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__func__, fw_ddb_index,
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ddb_entry->os_target_id,
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ddb_entry->fw_ddb_device_state,
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conn_err, fw_ddb_entry->ip_addr,
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le16_to_cpu(fw_ddb_entry->port),
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fw_ddb_entry->iscsi_name));
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} else
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DEBUG2(dev_info(&ha->pdev->dev, "%s: DDB[%d] osIdx = %d "
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"State %04x ConnErr %08x IP %pI4 "
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":%04d \"%s\"\n",
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__func__, fw_ddb_index,
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ddb_entry->os_target_id,
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ddb_entry->fw_ddb_device_state,
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conn_err, fw_ddb_entry->ip_addr,
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le16_to_cpu(fw_ddb_entry->port),
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fw_ddb_entry->iscsi_name));
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exit_update_ddb:
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if (fw_ddb_entry)
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dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
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@ -629,6 +644,40 @@ static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
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return ddb_entry;
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}
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/**
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* qla4_is_relogin_allowed - Are we allowed to login?
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* @ha: Pointer to host adapter structure.
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* @conn_err: Last connection error associated with the ddb
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*
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* This routine tests the given connection error to determine if
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* we are allowed to login.
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**/
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int qla4_is_relogin_allowed(struct scsi_qla_host *ha, uint32_t conn_err)
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{
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uint32_t err_code, login_rsp_sts_class;
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int relogin = 1;
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err_code = ((conn_err & 0x00ff0000) >> 16);
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login_rsp_sts_class = ((conn_err & 0x0000ff00) >> 8);
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if (err_code == 0x1c || err_code == 0x06) {
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DEBUG2(dev_info(&ha->pdev->dev,
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": conn_err=0x%08x, send target completed"
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" or access denied failure\n", conn_err));
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relogin = 0;
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}
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if ((err_code == 0x08) && (login_rsp_sts_class == 0x02)) {
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/* Login Response PDU returned an error.
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Login Response Status in Error Code Detail
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indicates login should not be retried.*/
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DEBUG2(dev_info(&ha->pdev->dev,
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": conn_err=0x%08x, do not retry relogin\n",
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conn_err));
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relogin = 0;
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}
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return relogin;
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}
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/**
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* qla4xxx_configure_ddbs - builds driver ddb list
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* @ha: Pointer to host adapter structure.
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@ -643,18 +692,30 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
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uint32_t fw_ddb_index = 0;
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uint32_t next_fw_ddb_index = 0;
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uint32_t ddb_state;
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uint32_t conn_err, err_code;
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uint32_t conn_err;
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struct ddb_entry *ddb_entry;
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struct dev_db_entry *fw_ddb_entry = NULL;
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dma_addr_t fw_ddb_entry_dma;
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uint32_t ipv6_device;
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uint32_t new_tgt;
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fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
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&fw_ddb_entry_dma, GFP_KERNEL);
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if (fw_ddb_entry == NULL) {
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DEBUG2(dev_info(&ha->pdev->dev, "%s: DMA alloc failed\n",
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__func__));
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return QLA_ERROR;
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}
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dev_info(&ha->pdev->dev, "Initializing DDBs ...\n");
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for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
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fw_ddb_index = next_fw_ddb_index) {
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/* First, let's see if a device exists here */
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if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL,
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&next_fw_ddb_index, &ddb_state,
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&conn_err, NULL, NULL) ==
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QLA_ERROR) {
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if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
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0, NULL, &next_fw_ddb_index,
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&ddb_state, &conn_err,
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NULL, NULL) ==
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QLA_ERROR) {
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DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
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"fw_ddb_index %d failed", ha->host_no,
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__func__, fw_ddb_index));
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@ -671,18 +732,19 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
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/* Try and login to device */
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DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
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ha->host_no, __func__, fw_ddb_index));
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err_code = ((conn_err & 0x00ff0000) >> 16);
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if (err_code == 0x1c || err_code == 0x06) {
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DEBUG2(printk("scsi%ld: %s send target "
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"completed "
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"or access denied failure\n",
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ha->host_no, __func__));
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} else {
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ipv6_device = le16_to_cpu(fw_ddb_entry->options) &
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DDB_OPT_IPV6_DEVICE;
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if (qla4_is_relogin_allowed(ha, conn_err) &&
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((!ipv6_device &&
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*((uint32_t *)fw_ddb_entry->ip_addr))
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|| ipv6_device)) {
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qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
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if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index,
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NULL, 0, NULL, &next_fw_ddb_index,
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&ddb_state, &conn_err, NULL, NULL)
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== QLA_ERROR) {
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NULL, 0, NULL,
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&next_fw_ddb_index,
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&ddb_state, &conn_err,
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NULL, NULL)
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== QLA_ERROR) {
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DEBUG2(printk("scsi%ld: %s:"
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"get_ddb_entry %d failed\n",
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ha->host_no,
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@ -737,7 +799,6 @@ static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
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struct qla4_relog_scan {
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int halt_wait;
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uint32_t conn_err;
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uint32_t err_code;
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uint32_t fw_ddb_index;
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uint32_t next_fw_ddb_index;
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uint32_t fw_ddb_device_state;
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@ -747,18 +808,7 @@ static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
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{
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struct ddb_entry *ddb_entry;
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/*
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* Don't want to do a relogin if connection
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* error is 0x1c.
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*/
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rs->err_code = ((rs->conn_err & 0x00ff0000) >> 16);
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if (rs->err_code == 0x1c || rs->err_code == 0x06) {
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DEBUG2(printk(
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"scsi%ld: %s send target"
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" completed or "
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"access denied failure\n",
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ha->host_no, __func__));
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} else {
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if (qla4_is_relogin_allowed(ha, rs->conn_err)) {
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/* We either have a device that is in
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* the process of relogging in or a
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* device that is waiting to be
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@ -1411,8 +1461,8 @@ static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
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*
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* This routine processes a Decive Database Changed AEN Event.
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**/
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int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
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uint32_t fw_ddb_index, uint32_t state)
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int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
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uint32_t state, uint32_t conn_err)
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{
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struct ddb_entry * ddb_entry;
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uint32_t old_fw_ddb_device_state;
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@ -1470,13 +1520,13 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
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/*
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* Relogin if device state changed to a not active state.
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* However, do not relogin if this aen is a result of an IOCTL
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* logout (DF_NO_RELOGIN) or if this is a discovered device.
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* However, do not relogin if a RELOGIN is in process, or
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* we are not allowed to relogin to this DDB.
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*/
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if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
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!test_bit(DF_RELOGIN, &ddb_entry->flags) &&
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!test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
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!test_bit(DF_ISNS_DISCOVERED, &ddb_entry->flags)) {
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qla4_is_relogin_allowed(ha, conn_err)) {
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/*
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* This triggers a relogin. After the relogin_timer
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* expires, the relogin gets scheduled. We must wait a
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@ -1484,7 +1534,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
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* with failed device_state or a logout response before
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* we can issue another relogin.
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*/
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/* Firmware padds this timeout: (time2wait +1).
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/* Firmware pads this timeout: (time2wait +1).
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* Driver retry to login should be longer than F/W.
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* Otherwise F/W will fail
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* set_ddb() mbx cmd with 0x4005 since it still
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@ -838,7 +838,7 @@ void qla4xxx_process_aen(struct scsi_qla_host * ha, uint8_t process_aen)
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qla4xxx_reinitialize_ddb_list(ha);
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} else if (mbox_sts[1] == 1) { /* Specific device. */
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qla4xxx_process_ddb_changed(ha, mbox_sts[2],
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mbox_sts[3]);
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mbox_sts[3], mbox_sts[4]);
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}
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break;
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}
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