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| author |   Anirban Chakraborty <anirban.chakraborty@qlogic.com> | 2011-05-12 12:48:33 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2011-05-13 14:44:12 -0400 |
| commit | 18f2f616be88736f5daf31d9d40e027abbd607ed (patch) | |
| tree | c4ef622c5f4c187099cfac33f2fc6313c4efe790 /drivers/net/qlcnic/qlcnic_ctx.c | |
| parent | be2net: fix mbox polling for signal reception (diff) | |
| download | linux-dev-18f2f616be88736f5daf31d9d40e027abbd607ed.tar.xz linux-dev-18f2f616be88736f5daf31d9d40e027abbd607ed.zip | |
qlcnic: FW dump support
Added code to take FW dump.
o Driver queries FW at the init time and gets the dump template
o It takes FW dump as per the dump template
o Level of FW dump (and its size) is configured via dump flag
Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/qlcnic/qlcnic_ctx.c')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_ctx.c | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/drivers/net/qlcnic/qlcnic_ctx.c b/drivers/net/qlcnic/qlcnic_ctx.c index 3a99886e4736..bab041a5c758 100644 --- a/drivers/net/qlcnic/qlcnic_ctx.c +++ b/drivers/net/qlcnic/qlcnic_ctx.c @@ -64,6 +64,97 @@ qlcnic_issue_cmd(struct qlcnic_adapter *adapter, return rcode; } +static uint32_t qlcnic_temp_checksum(uint32_t *temp_buffer, u16 temp_size) +{ + uint64_t sum = 0; + int count = temp_size / sizeof(uint32_t); + while (count-- > 0) + sum += *temp_buffer++; + while (sum >> 32) + sum = (sum & 0xFFFFFFFF) + (sum >> 32); + return ~sum; +} + +int qlcnic_fw_cmd_get_minidump_temp(struct qlcnic_adapter *adapter) +{ + int err, i; + u16 temp_size; + void *tmp_addr; + u32 version, csum, *template, *tmp_buf; + struct qlcnic_hardware_context *ahw; + struct qlcnic_dump_template_hdr *tmpl_hdr, *tmp_tmpl; + dma_addr_t tmp_addr_t = 0; + + ahw = adapter->ahw; + err = qlcnic_issue_cmd(adapter, + adapter->ahw->pci_func, + adapter->fw_hal_version, + 0, + 0, + 0, + QLCNIC_CDRP_CMD_TEMP_SIZE); + if (err != QLCNIC_RCODE_SUCCESS) { + err = QLCRD32(adapter, QLCNIC_ARG1_CRB_OFFSET); + dev_err(&adapter->pdev->dev, + "Failed to get template size %d\n", err); + err = -EIO; + return err; + } + version = QLCRD32(adapter, QLCNIC_ARG3_CRB_OFFSET); + temp_size = QLCRD32(adapter, QLCNIC_ARG2_CRB_OFFSET); + if (!temp_size) + return -EIO; + + tmp_addr = dma_alloc_coherent(&adapter->pdev->dev, temp_size, + &tmp_addr_t, GFP_KERNEL); + if (!tmp_addr) { + dev_err(&adapter->pdev->dev, + "Can't get memory for FW dump template\n"); + return -ENOMEM; + } + err = qlcnic_issue_cmd(adapter, + adapter->ahw->pci_func, + adapter->fw_hal_version, + LSD(tmp_addr_t), + MSD(tmp_addr_t), + temp_size, + QLCNIC_CDRP_CMD_GET_TEMP_HDR); + + if (err != QLCNIC_RCODE_SUCCESS) { + dev_err(&adapter->pdev->dev, + "Failed to get mini dump template header %d\n", err); + err = -EIO; + goto error; + } + tmp_tmpl = (struct qlcnic_dump_template_hdr *) tmp_addr; + csum = qlcnic_temp_checksum((uint32_t *) tmp_addr, temp_size); + if (csum) { + dev_err(&adapter->pdev->dev, + "Template header checksum validation failed\n"); + err = -EIO; + goto error; + } + ahw->fw_dump.tmpl_hdr = vzalloc(temp_size); + if (!ahw->fw_dump.tmpl_hdr) { + err = -EIO; + goto error; + } + tmp_buf = (u32 *) tmp_addr; + template = (u32 *) ahw->fw_dump.tmpl_hdr; + for (i = 0; i < temp_size/sizeof(u32); i++) + *template++ = __le32_to_cpu(*tmp_buf++); + + tmpl_hdr = ahw->fw_dump.tmpl_hdr; + if (tmpl_hdr->cap_mask > QLCNIC_DUMP_MASK_DEF && + tmpl_hdr->cap_mask <= QLCNIC_DUMP_MASK_MAX) + tmpl_hdr->drv_cap_mask = tmpl_hdr->cap_mask; + else + tmpl_hdr->drv_cap_mask = QLCNIC_DUMP_MASK_DEF; +error: + dma_free_coherent(&adapter->pdev->dev, temp_size, tmp_addr, tmp_addr_t); + return err; +} + int qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu) { |