diff options
author | <andrew.vasquez@qlogic.com> | 2005-04-17 20:04:54 (GMT) |
---|---|---|
committer | James Bottomley <jejb@titanic> | 2005-04-18 18:47:19 (GMT) |
commit | 8482e118afa0cb4321ab3d30b1100d27d63130c0 (patch) | |
tree | 971714d297194e1c20e1b80b1d2e031d4517f5ad /drivers/scsi/qla2xxx/qla_attr.c | |
parent | f4f051ebb40e74ad0ba02d2cb3a6c16b0393472b (diff) | |
download | linux-8482e118afa0cb4321ab3d30b1100d27d63130c0.tar.xz |
[PATCH] qla2xxx: add remote port codes...
Add initial support for FC remote port infrastructure.
o Use fc_remote_port...() registration and block/unlock
functions.
o Consolidate 'attribute' (fc-remote/sysfs) helpers into
new qla_attr.c file.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
-rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c new file mode 100644 index 0000000..0105b60 --- /dev/null +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -0,0 +1,323 @@ +/* + * QLOGIC LINUX SOFTWARE + * + * QLogic ISP2x00 device driver for Linux 2.6.x + * Copyright (C) 2003-2005 QLogic Corporation + * (www.qlogic.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + */ +#include "qla_def.h" + +#include <linux/version.h> +#include <scsi/scsi_transport_fc.h> + +/* SYSFS attributes --------------------------------------------------------- */ + +static ssize_t +qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, + struct device, kobj))); + + if (ha->fw_dump_reading == 0) + return 0; + if (off > ha->fw_dump_buffer_len) + return 0; + if (off + count > ha->fw_dump_buffer_len) + count = ha->fw_dump_buffer_len - off; + + memcpy(buf, &ha->fw_dump_buffer[off], count); + + return (count); +} + +static ssize_t +qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, + struct device, kobj))); + int reading; + uint32_t dump_size; + + if (off != 0) + return (0); + + reading = simple_strtol(buf, NULL, 10); + switch (reading) { + case 0: + if (ha->fw_dump_reading == 1) { + qla_printk(KERN_INFO, ha, + "Firmware dump cleared on (%ld).\n", + ha->host_no); + + vfree(ha->fw_dump_buffer); + free_pages((unsigned long)ha->fw_dump, + ha->fw_dump_order); + + ha->fw_dump_reading = 0; + ha->fw_dump_buffer = NULL; + ha->fw_dump = NULL; + } + break; + case 1: + if (ha->fw_dump != NULL && !ha->fw_dump_reading) { + ha->fw_dump_reading = 1; + + dump_size = FW_DUMP_SIZE_1M; + if (ha->fw_memory_size < 0x20000) + dump_size = FW_DUMP_SIZE_128K; + else if (ha->fw_memory_size < 0x80000) + dump_size = FW_DUMP_SIZE_512K; + ha->fw_dump_buffer = (char *)vmalloc(dump_size); + if (ha->fw_dump_buffer == NULL) { + qla_printk(KERN_WARNING, ha, + "Unable to allocate memory for firmware " + "dump buffer (%d).\n", dump_size); + + ha->fw_dump_reading = 0; + return (count); + } + qla_printk(KERN_INFO, ha, + "Firmware dump ready for read on (%ld).\n", + ha->host_no); + memset(ha->fw_dump_buffer, 0, dump_size); + if (IS_QLA2100(ha) || IS_QLA2200(ha)) + qla2100_ascii_fw_dump(ha); + else + qla2300_ascii_fw_dump(ha); + ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer); + } + break; + } + return (count); +} + +static struct bin_attribute sysfs_fw_dump_attr = { + .attr = { + .name = "fw_dump", + .mode = S_IRUSR | S_IWUSR, + .owner = THIS_MODULE, + }, + .size = 0, + .read = qla2x00_sysfs_read_fw_dump, + .write = qla2x00_sysfs_write_fw_dump, +}; + +static ssize_t +qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, + struct device, kobj))); + uint16_t *witer; + unsigned long flags; + uint16_t cnt; + + if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t)) + return 0; + + /* Read NVRAM. */ + spin_lock_irqsave(&ha->hardware_lock, flags); + qla2x00_lock_nvram_access(ha); + witer = (uint16_t *)buf; + for (cnt = 0; cnt < count / 2; cnt++) { + *witer = cpu_to_le16(qla2x00_get_nvram_word(ha, + cnt+ha->nvram_base)); + witer++; + } + qla2x00_unlock_nvram_access(ha); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return (count); +} + +static ssize_t +qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off, + size_t count) +{ + struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, + struct device, kobj))); + uint8_t *iter; + uint16_t *witer; + unsigned long flags; + uint16_t cnt; + uint8_t chksum; + + if (!capable(CAP_SYS_ADMIN) || off != 0 || count != sizeof(nvram_t)) + return 0; + + /* Checksum NVRAM. */ + iter = (uint8_t *)buf; + chksum = 0; + for (cnt = 0; cnt < count - 1; cnt++) + chksum += *iter++; + chksum = ~chksum + 1; + *iter = chksum; + + /* Write NVRAM. */ + spin_lock_irqsave(&ha->hardware_lock, flags); + qla2x00_lock_nvram_access(ha); + qla2x00_release_nvram_protection(ha); + witer = (uint16_t *)buf; + for (cnt = 0; cnt < count / 2; cnt++) { + qla2x00_write_nvram_word(ha, cnt+ha->nvram_base, + cpu_to_le16(*witer)); + witer++; + } + qla2x00_unlock_nvram_access(ha); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return (count); +} + +static struct bin_attribute sysfs_nvram_attr = { + .attr = { + .name = "nvram", + .mode = S_IRUSR | S_IWUSR, + .owner = THIS_MODULE, + }, + .size = sizeof(nvram_t), + .read = qla2x00_sysfs_read_nvram, + .write = qla2x00_sysfs_write_nvram, +}; + +void +qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) +{ + struct Scsi_Host *host = ha->host; + + sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); + sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); +} + +void +qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) +{ + struct Scsi_Host *host = ha->host; + + sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); + sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); +} + +/* Host attributes. */ + +static void +qla2x00_get_host_port_id(struct Scsi_Host *shost) +{ + scsi_qla_host_t *ha = to_qla_host(shost); + + fc_host_port_id(shost) = ha->d_id.b.domain << 16 | + ha->d_id.b.area << 8 | ha->d_id.b.al_pa; +} + +static void +qla2x00_get_starget_node_name(struct scsi_target *starget) +{ + struct Scsi_Host *host = dev_to_shost(starget->dev.parent); + scsi_qla_host_t *ha = to_qla_host(host); + os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id); + uint64_t node_name = 0; + + if (tq->fcport) + node_name = be64_to_cpu(*(uint64_t *)tq->fcport->node_name); + fc_starget_node_name(starget) = node_name; +} + +static void +qla2x00_get_starget_port_name(struct scsi_target *starget) +{ + struct Scsi_Host *host = dev_to_shost(starget->dev.parent); + scsi_qla_host_t *ha = to_qla_host(host); + os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id); + uint64_t port_name = 0; + + if (tq->fcport) + port_name = be64_to_cpu(*(uint64_t *)tq->fcport->port_name); + fc_starget_port_name(starget) = port_name; +} + +static void +qla2x00_get_starget_port_id(struct scsi_target *starget) +{ + struct Scsi_Host *host = dev_to_shost(starget->dev.parent); + scsi_qla_host_t *ha = to_qla_host(host); + os_tgt_t *tq = (os_tgt_t *) TGT_Q(ha, starget->id); + uint32_t port_id = 0; + + if (tq->fcport) + port_id = tq->fcport->d_id.b.domain << 16 | + tq->fcport->d_id.b.area << 8 | tq->fcport->d_id.b.al_pa; + fc_starget_port_id(starget) = port_id; +} + +static void +qla2x00_get_rport_loss_tmo(struct fc_rport *rport) +{ + os_tgt_t *tq = rport->dd_data; + scsi_qla_host_t *ha = tq->ha; + + rport->dev_loss_tmo = ha->port_down_retry_count + 5; +} + +static void +qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) +{ + os_tgt_t *tq = rport->dd_data; + scsi_qla_host_t *ha = tq->ha; + + if (timeout) + ha->port_down_retry_count = timeout; + else + ha->port_down_retry_count = 1; + + rport->dev_loss_tmo = ha->port_down_retry_count + 5; +} + +static struct fc_function_template qla2xxx_transport_functions = { + + .show_host_node_name = 1, + .show_host_port_name = 1, + .get_host_port_id = qla2x00_get_host_port_id, + .show_host_port_id = 1, + + .dd_fcrport_size = sizeof(os_tgt_t *), + + .get_starget_node_name = qla2x00_get_starget_node_name, + .show_starget_node_name = 1, + .get_starget_port_name = qla2x00_get_starget_port_name, + .show_starget_port_name = 1, + .get_starget_port_id = qla2x00_get_starget_port_id, + .show_starget_port_id = 1, + + .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, + .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, + .show_rport_dev_loss_tmo = 1, + +}; + +struct scsi_transport_template * +qla2x00_alloc_transport_tmpl(void) +{ + return (fc_attach_transport(&qla2xxx_transport_functions)); +} + +void +qla2x00_init_host_attr(scsi_qla_host_t *ha) +{ + fc_host_node_name(ha->host) = + be64_to_cpu(*(uint64_t *)ha->init_cb->node_name); + fc_host_port_name(ha->host) = + be64_to_cpu(*(uint64_t *)ha->init_cb->port_name); +} |