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@@ -19,6 +19,7 @@
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#include <linux/mm.h>
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#include <linux/if_vlan.h>
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#include <linux/cpu.h>
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+#include <linux/iscsi_boot_sysfs.h>
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#include <scsi/scsi_cmnd.h>
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#include <scsi/scsi_device.h>
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@@ -1143,6 +1144,30 @@ exit_setup_int:
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return rc;
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}
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+static void qedi_free_nvm_iscsi_cfg(struct qedi_ctx *qedi)
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+{
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+ if (qedi->iscsi_cfg)
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+ dma_free_coherent(&qedi->pdev->dev,
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+ sizeof(struct nvm_iscsi_cfg),
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+ qedi->iscsi_cfg, qedi->nvm_buf_dma);
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+}
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+
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+static int qedi_alloc_nvm_iscsi_cfg(struct qedi_ctx *qedi)
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+{
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+ qedi->iscsi_cfg = dma_zalloc_coherent(&qedi->pdev->dev,
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+ sizeof(struct nvm_iscsi_cfg),
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+ &qedi->nvm_buf_dma, GFP_KERNEL);
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+ if (!qedi->iscsi_cfg) {
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+ QEDI_ERR(&qedi->dbg_ctx, "Could not allocate NVM BUF.\n");
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+ return -ENOMEM;
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+ }
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+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
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+ "NVM BUF addr=0x%p dma=0x%llx.\n", qedi->iscsi_cfg,
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+ qedi->nvm_buf_dma);
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+
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+ return 0;
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+}
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+
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static void qedi_free_bdq(struct qedi_ctx *qedi)
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{
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int i;
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@@ -1183,6 +1208,7 @@ static void qedi_free_global_queues(struct qedi_ctx *qedi)
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kfree(gl[i]);
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}
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qedi_free_bdq(qedi);
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+ qedi_free_nvm_iscsi_cfg(qedi);
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}
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static int qedi_alloc_bdq(struct qedi_ctx *qedi)
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@@ -1309,6 +1335,11 @@ static int qedi_alloc_global_queues(struct qedi_ctx *qedi)
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if (rc)
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goto mem_alloc_failure;
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+ /* Allocate DMA coherent buffers for NVM_ISCSI_CFG */
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+ rc = qedi_alloc_nvm_iscsi_cfg(qedi);
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+ if (rc)
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+ goto mem_alloc_failure;
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+
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/* Allocate a CQ and an associated PBL for each MSI-X
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* vector.
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*/
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@@ -1671,6 +1702,387 @@ void qedi_reset_host_mtu(struct qedi_ctx *qedi, u16 mtu)
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qedi_ops->ll2->start(qedi->cdev, ¶ms);
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}
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+/**
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+ * qedi_get_nvram_block: - Scan through the iSCSI NVRAM block (while accounting
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+ * for gaps) for the matching absolute-pf-id of the QEDI device.
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+ */
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+static struct nvm_iscsi_block *
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+qedi_get_nvram_block(struct qedi_ctx *qedi)
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+{
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+ int i;
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+ u8 pf;
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+ u32 flags;
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+ struct nvm_iscsi_block *block;
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+
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+ pf = qedi->dev_info.common.abs_pf_id;
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+ block = &qedi->iscsi_cfg->block[0];
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+ for (i = 0; i < NUM_OF_ISCSI_PF_SUPPORTED; i++, block++) {
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+ flags = ((block->id) & NVM_ISCSI_CFG_BLK_CTRL_FLAG_MASK) >>
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+ NVM_ISCSI_CFG_BLK_CTRL_FLAG_OFFSET;
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+ if (flags & (NVM_ISCSI_CFG_BLK_CTRL_FLAG_IS_NOT_EMPTY |
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+ NVM_ISCSI_CFG_BLK_CTRL_FLAG_PF_MAPPED) &&
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+ (pf == (block->id & NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_MASK)
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+ >> NVM_ISCSI_CFG_BLK_MAPPED_PF_ID_OFFSET))
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+ return block;
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+ }
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+ return NULL;
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+}
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+
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+static ssize_t qedi_show_boot_eth_info(void *data, int type, char *buf)
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+{
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+ struct qedi_ctx *qedi = data;
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+ struct nvm_iscsi_initiator *initiator;
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+ char *str = buf;
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+ int rc = 1;
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+ u32 ipv6_en, dhcp_en, ip_len;
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+ struct nvm_iscsi_block *block;
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+ char *fmt, *ip, *sub, *gw;
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+
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+ block = qedi_get_nvram_block(qedi);
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+ if (!block)
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+ return 0;
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+
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+ initiator = &block->initiator;
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+ ipv6_en = block->generic.ctrl_flags &
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+ NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
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+ dhcp_en = block->generic.ctrl_flags &
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+ NVM_ISCSI_CFG_GEN_DHCP_TCPIP_CONFIG_ENABLED;
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+ /* Static IP assignments. */
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+ fmt = ipv6_en ? "%pI6\n" : "%pI4\n";
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+ ip = ipv6_en ? initiator->ipv6.addr.byte : initiator->ipv4.addr.byte;
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+ ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
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+ sub = ipv6_en ? initiator->ipv6.subnet_mask.byte :
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+ initiator->ipv4.subnet_mask.byte;
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+ gw = ipv6_en ? initiator->ipv6.gateway.byte :
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+ initiator->ipv4.gateway.byte;
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+ /* DHCP IP adjustments. */
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+ fmt = dhcp_en ? "%s\n" : fmt;
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+ if (dhcp_en) {
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+ ip = ipv6_en ? "0::0" : "0.0.0.0";
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+ sub = ip;
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+ gw = ip;
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+ ip_len = ipv6_en ? 5 : 8;
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+ }
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+
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+ switch (type) {
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+ case ISCSI_BOOT_ETH_IP_ADDR:
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+ rc = snprintf(str, ip_len, fmt, ip);
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+ break;
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+ case ISCSI_BOOT_ETH_SUBNET_MASK:
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+ rc = snprintf(str, ip_len, fmt, sub);
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+ break;
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+ case ISCSI_BOOT_ETH_GATEWAY:
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+ rc = snprintf(str, ip_len, fmt, gw);
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+ break;
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+ case ISCSI_BOOT_ETH_FLAGS:
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+ rc = snprintf(str, 3, "%hhd\n",
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+ SYSFS_FLAG_FW_SEL_BOOT);
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+ break;
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+ case ISCSI_BOOT_ETH_INDEX:
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+ rc = snprintf(str, 3, "0\n");
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+ break;
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+ case ISCSI_BOOT_ETH_MAC:
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+ rc = sysfs_format_mac(str, qedi->mac, ETH_ALEN);
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+ break;
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+ case ISCSI_BOOT_ETH_VLAN:
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+ rc = snprintf(str, 12, "%d\n",
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+ GET_FIELD2(initiator->generic_cont0,
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+ NVM_ISCSI_CFG_INITIATOR_VLAN));
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+ break;
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+ case ISCSI_BOOT_ETH_ORIGIN:
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+ if (dhcp_en)
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+ rc = snprintf(str, 3, "3\n");
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+
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+ return rc;
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+}
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+
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+static umode_t qedi_eth_get_attr_visibility(void *data, int type)
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+{
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+ int rc = 1;
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+
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+ switch (type) {
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+ case ISCSI_BOOT_ETH_FLAGS:
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+ case ISCSI_BOOT_ETH_MAC:
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+ case ISCSI_BOOT_ETH_INDEX:
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+ case ISCSI_BOOT_ETH_IP_ADDR:
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+ case ISCSI_BOOT_ETH_SUBNET_MASK:
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+ case ISCSI_BOOT_ETH_GATEWAY:
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+ case ISCSI_BOOT_ETH_ORIGIN:
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+ case ISCSI_BOOT_ETH_VLAN:
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+ rc = 0444;
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+ return rc;
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+}
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+
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+static ssize_t qedi_show_boot_ini_info(void *data, int type, char *buf)
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+{
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+ struct qedi_ctx *qedi = data;
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+ struct nvm_iscsi_initiator *initiator;
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+ char *str = buf;
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+ int rc;
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+ struct nvm_iscsi_block *block;
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+
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+ block = qedi_get_nvram_block(qedi);
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+ if (!block)
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+ return 0;
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+
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+ initiator = &block->initiator;
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+
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+ switch (type) {
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+ case ISCSI_BOOT_INI_INITIATOR_NAME:
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+ rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
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+ initiator->initiator_name.byte);
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+ return rc;
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+}
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+
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+static umode_t qedi_ini_get_attr_visibility(void *data, int type)
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+{
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+ int rc;
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+
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+ switch (type) {
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+ case ISCSI_BOOT_INI_INITIATOR_NAME:
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+ rc = 0444;
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+ return rc;
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+}
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+
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+static ssize_t
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+qedi_show_boot_tgt_info(struct qedi_ctx *qedi, int type,
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+ char *buf, enum qedi_nvm_tgts idx)
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+{
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+ char *str = buf;
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+ int rc = 1;
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+ u32 ctrl_flags, ipv6_en, chap_en, mchap_en, ip_len;
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+ struct nvm_iscsi_block *block;
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+ char *chap_name, *chap_secret;
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+ char *mchap_name, *mchap_secret;
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+
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+ block = qedi_get_nvram_block(qedi);
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+ if (!block)
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+ goto exit_show_tgt_info;
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+
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+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
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+ "Port:%d, tgt_idx:%d\n",
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+ GET_FIELD2(block->id, NVM_ISCSI_CFG_BLK_MAPPED_PF_ID), idx);
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+
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+ ctrl_flags = block->target[idx].ctrl_flags &
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+ NVM_ISCSI_CFG_TARGET_ENABLED;
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+
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+ if (!ctrl_flags) {
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+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_EVT,
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+ "Target disabled\n");
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+ goto exit_show_tgt_info;
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+ }
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+
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+ ipv6_en = block->generic.ctrl_flags &
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+ NVM_ISCSI_CFG_GEN_IPV6_ENABLED;
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+ ip_len = ipv6_en ? IPV6_LEN : IPV4_LEN;
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+ chap_en = block->generic.ctrl_flags &
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+ NVM_ISCSI_CFG_GEN_CHAP_ENABLED;
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+ chap_name = chap_en ? block->initiator.chap_name.byte : NULL;
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+ chap_secret = chap_en ? block->initiator.chap_password.byte : NULL;
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+
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+ mchap_en = block->generic.ctrl_flags &
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+ NVM_ISCSI_CFG_GEN_CHAP_MUTUAL_ENABLED;
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+ mchap_name = mchap_en ? block->target[idx].chap_name.byte : NULL;
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+ mchap_secret = mchap_en ? block->target[idx].chap_password.byte : NULL;
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+
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+ switch (type) {
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+ case ISCSI_BOOT_TGT_NAME:
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+ rc = snprintf(str, NVM_ISCSI_CFG_ISCSI_NAME_MAX_LEN, "%s\n",
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+ block->target[idx].target_name.byte);
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+ break;
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+ case ISCSI_BOOT_TGT_IP_ADDR:
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+ if (ipv6_en)
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+ rc = snprintf(str, ip_len, "%pI6\n",
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+ block->target[idx].ipv6_addr.byte);
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+ else
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+ rc = snprintf(str, ip_len, "%pI4\n",
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+ block->target[idx].ipv4_addr.byte);
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+ break;
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+ case ISCSI_BOOT_TGT_PORT:
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+ rc = snprintf(str, 12, "%d\n",
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+ GET_FIELD2(block->target[idx].generic_cont0,
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+ NVM_ISCSI_CFG_TARGET_TCP_PORT));
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+ break;
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+ case ISCSI_BOOT_TGT_LUN:
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+ rc = snprintf(str, 22, "%.*d\n",
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+ block->target[idx].lun.value[1],
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+ block->target[idx].lun.value[0]);
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+ break;
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+ case ISCSI_BOOT_TGT_CHAP_NAME:
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+ rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
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+ chap_name);
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+ break;
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+ case ISCSI_BOOT_TGT_CHAP_SECRET:
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+ rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
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+ chap_secret);
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+ break;
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+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
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+ rc = snprintf(str, NVM_ISCSI_CFG_CHAP_NAME_MAX_LEN, "%s\n",
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+ mchap_name);
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+ break;
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+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
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+ rc = snprintf(str, NVM_ISCSI_CFG_CHAP_PWD_MAX_LEN, "%s\n",
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+ mchap_secret);
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+ break;
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+ case ISCSI_BOOT_TGT_FLAGS:
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+ rc = snprintf(str, 3, "%hhd\n", SYSFS_FLAG_FW_SEL_BOOT);
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+ break;
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+ case ISCSI_BOOT_TGT_NIC_ASSOC:
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+ rc = snprintf(str, 3, "0\n");
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+
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+exit_show_tgt_info:
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+ return rc;
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+}
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+
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+static ssize_t qedi_show_boot_tgt_pri_info(void *data, int type, char *buf)
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+{
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+ struct qedi_ctx *qedi = data;
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+
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+ return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_PRI);
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+}
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+
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+static ssize_t qedi_show_boot_tgt_sec_info(void *data, int type, char *buf)
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+{
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+ struct qedi_ctx *qedi = data;
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+
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+ return qedi_show_boot_tgt_info(qedi, type, buf, QEDI_NVM_TGT_SEC);
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+}
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+
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+static umode_t qedi_tgt_get_attr_visibility(void *data, int type)
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+{
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+ int rc;
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+
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+ switch (type) {
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+ case ISCSI_BOOT_TGT_NAME:
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+ case ISCSI_BOOT_TGT_IP_ADDR:
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+ case ISCSI_BOOT_TGT_PORT:
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+ case ISCSI_BOOT_TGT_LUN:
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+ case ISCSI_BOOT_TGT_CHAP_NAME:
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+ case ISCSI_BOOT_TGT_CHAP_SECRET:
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+ case ISCSI_BOOT_TGT_REV_CHAP_NAME:
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+ case ISCSI_BOOT_TGT_REV_CHAP_SECRET:
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+ case ISCSI_BOOT_TGT_NIC_ASSOC:
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+ case ISCSI_BOOT_TGT_FLAGS:
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+ rc = 0444;
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+ break;
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+ default:
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+ rc = 0;
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+ break;
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+ }
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+ return rc;
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+}
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+
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+static void qedi_boot_release(void *data)
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+{
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+ struct qedi_ctx *qedi = data;
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+
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+ scsi_host_put(qedi->shost);
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+}
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+
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+static int qedi_get_boot_info(struct qedi_ctx *qedi)
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+{
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+ int ret = 1;
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+ u16 len;
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+
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+ len = sizeof(struct nvm_iscsi_cfg);
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+
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+ QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO,
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+ "Get NVM iSCSI CFG image\n");
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+ ret = qedi_ops->common->nvm_get_image(qedi->cdev,
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+ QED_NVM_IMAGE_ISCSI_CFG,
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+ (char *)qedi->iscsi_cfg, len);
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+ if (ret)
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|
|
+ QEDI_ERR(&qedi->dbg_ctx,
|
|
|
+ "Could not get NVM image. ret = %d\n", ret);
|
|
|
+
|
|
|
+ return ret;
|
|
|
+}
|
|
|
+
|
|
|
+static int qedi_setup_boot_info(struct qedi_ctx *qedi)
|
|
|
+{
|
|
|
+ struct iscsi_boot_kobj *boot_kobj;
|
|
|
+
|
|
|
+ if (qedi_get_boot_info(qedi))
|
|
|
+ return -EPERM;
|
|
|
+
|
|
|
+ qedi->boot_kset = iscsi_boot_create_host_kset(qedi->shost->host_no);
|
|
|
+ if (!qedi->boot_kset)
|
|
|
+ goto kset_free;
|
|
|
+
|
|
|
+ if (!scsi_host_get(qedi->shost))
|
|
|
+ goto kset_free;
|
|
|
+
|
|
|
+ boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 0, qedi,
|
|
|
+ qedi_show_boot_tgt_pri_info,
|
|
|
+ qedi_tgt_get_attr_visibility,
|
|
|
+ qedi_boot_release);
|
|
|
+ if (!boot_kobj)
|
|
|
+ goto put_host;
|
|
|
+
|
|
|
+ if (!scsi_host_get(qedi->shost))
|
|
|
+ goto kset_free;
|
|
|
+
|
|
|
+ boot_kobj = iscsi_boot_create_target(qedi->boot_kset, 1, qedi,
|
|
|
+ qedi_show_boot_tgt_sec_info,
|
|
|
+ qedi_tgt_get_attr_visibility,
|
|
|
+ qedi_boot_release);
|
|
|
+ if (!boot_kobj)
|
|
|
+ goto put_host;
|
|
|
+
|
|
|
+ if (!scsi_host_get(qedi->shost))
|
|
|
+ goto kset_free;
|
|
|
+
|
|
|
+ boot_kobj = iscsi_boot_create_initiator(qedi->boot_kset, 0, qedi,
|
|
|
+ qedi_show_boot_ini_info,
|
|
|
+ qedi_ini_get_attr_visibility,
|
|
|
+ qedi_boot_release);
|
|
|
+ if (!boot_kobj)
|
|
|
+ goto put_host;
|
|
|
+
|
|
|
+ if (!scsi_host_get(qedi->shost))
|
|
|
+ goto kset_free;
|
|
|
+
|
|
|
+ boot_kobj = iscsi_boot_create_ethernet(qedi->boot_kset, 0, qedi,
|
|
|
+ qedi_show_boot_eth_info,
|
|
|
+ qedi_eth_get_attr_visibility,
|
|
|
+ qedi_boot_release);
|
|
|
+ if (!boot_kobj)
|
|
|
+ goto put_host;
|
|
|
+
|
|
|
+ return 0;
|
|
|
+
|
|
|
+put_host:
|
|
|
+ scsi_host_put(qedi->shost);
|
|
|
+kset_free:
|
|
|
+ iscsi_boot_destroy_kset(qedi->boot_kset);
|
|
|
+ return -ENOMEM;
|
|
|
+}
|
|
|
+
|
|
|
static void __qedi_remove(struct pci_dev *pdev, int mode)
|
|
|
{
|
|
|
struct qedi_ctx *qedi = pci_get_drvdata(pdev);
|
|
|
@@ -1724,6 +2136,9 @@ static void __qedi_remove(struct pci_dev *pdev, int mode)
|
|
|
qedi->ll2_recv_thread = NULL;
|
|
|
}
|
|
|
qedi_ll2_free_skbs(qedi);
|
|
|
+
|
|
|
+ if (qedi->boot_kset)
|
|
|
+ iscsi_boot_destroy_kset(qedi->boot_kset);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
@@ -1967,6 +2382,10 @@ static int __qedi_probe(struct pci_dev *pdev, int mode)
|
|
|
/* F/w needs 1st task context memory entry for performance */
|
|
|
set_bit(QEDI_RESERVE_TASK_ID, qedi->task_idx_map);
|
|
|
atomic_set(&qedi->num_offloads, 0);
|
|
|
+
|
|
|
+ if (qedi_setup_boot_info(qedi))
|
|
|
+ QEDI_ERR(&qedi->dbg_ctx,
|
|
|
+ "No iSCSI boot target configured\n");
|
|
|
}
|
|
|
|
|
|
return 0;
|
Linus Torvalds