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Message-Id: <1354113271-23850-6-git-send-email-sony.chacko@qlogic.com>
Date: Wed, 28 Nov 2012 09:34:30 -0500
From: Sony Chacko <sony.chacko@...gic.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, Dept_NX_Linux_NIC_Driver@...gic.com,
Sony Chacko <sony.chacko@...gic.com>
Subject: [PATCH 5/6] qlcnic: create file qlcnic_minidump.c for dump utility
From: Sony Chacko <sony.chacko@...gic.com>
Physical refactoring of 82xx adapter register dump utility.
Move register dump routines to new file qlcnic_minidump.c
Existing register dump routines has coding style issues, the code
is moved to the new file without fixing the style issues.
There is a seperate patch to fix the style issues in qlcnic_minidump.c
Signed-off-by: Sony Chacko <sony.chacko@...gic.com>
---
drivers/net/ethernet/qlogic/qlcnic/Makefile | 2 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 143 +-----
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 486 ---------------
.../net/ethernet/qlogic/qlcnic/qlcnic_minidump.c | 629 ++++++++++++++++++++
4 files changed, 632 insertions(+), 628 deletions(-)
create mode 100644 drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
diff --git a/drivers/net/ethernet/qlogic/qlcnic/Makefile b/drivers/net/ethernet/qlogic/qlcnic/Makefile
index 34db053..c4b8ced 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/Makefile
+++ b/drivers/net/ethernet/qlogic/qlcnic/Makefile
@@ -6,4 +6,4 @@ obj-$(CONFIG_QLCNIC) := qlcnic.o
qlcnic-y := qlcnic_hw.o qlcnic_main.o qlcnic_init.o \
qlcnic_ethtool.o qlcnic_ctx.o qlcnic_io.o \
- qlcnic_sysfs.o
+ qlcnic_sysfs.o qlcnic_minidump.o
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 618e5ec..082eecb 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -1255,142 +1255,7 @@ struct qlcnic_esw_statistics {
struct __qlcnic_esw_statistics tx;
};
-struct qlcnic_common_entry_hdr {
- u32 type;
- u32 offset;
- u32 cap_size;
- u8 mask;
- u8 rsvd[2];
- u8 flags;
-} __packed;
-
-struct __crb {
- u32 addr;
- u8 stride;
- u8 rsvd1[3];
- u32 data_size;
- u32 no_ops;
- u32 rsvd2[4];
-} __packed;
-
-struct __ctrl {
- u32 addr;
- u8 stride;
- u8 index_a;
- u16 timeout;
- u32 data_size;
- u32 no_ops;
- u8 opcode;
- u8 index_v;
- u8 shl_val;
- u8 shr_val;
- u32 val1;
- u32 val2;
- u32 val3;
-} __packed;
-
-struct __cache {
- u32 addr;
- u16 stride;
- u16 init_tag_val;
- u32 size;
- u32 no_ops;
- u32 ctrl_addr;
- u32 ctrl_val;
- u32 read_addr;
- u8 read_addr_stride;
- u8 read_addr_num;
- u8 rsvd1[2];
-} __packed;
-
-struct __ocm {
- u8 rsvd[8];
- u32 size;
- u32 no_ops;
- u8 rsvd1[8];
- u32 read_addr;
- u32 read_addr_stride;
-} __packed;
-
-struct __mem {
- u8 rsvd[24];
- u32 addr;
- u32 size;
-} __packed;
-
-struct __mux {
- u32 addr;
- u8 rsvd[4];
- u32 size;
- u32 no_ops;
- u32 val;
- u32 val_stride;
- u32 read_addr;
- u8 rsvd2[4];
-} __packed;
-
-struct __queue {
- u32 sel_addr;
- u16 stride;
- u8 rsvd[2];
- u32 size;
- u32 no_ops;
- u8 rsvd2[8];
- u32 read_addr;
- u8 read_addr_stride;
- u8 read_addr_cnt;
- u8 rsvd3[2];
-} __packed;
-
-struct qlcnic_dump_entry {
- struct qlcnic_common_entry_hdr hdr;
- union {
- struct __crb crb;
- struct __cache cache;
- struct __ocm ocm;
- struct __mem mem;
- struct __mux mux;
- struct __queue que;
- struct __ctrl ctrl;
- } region;
-} __packed;
-
-enum op_codes {
- QLCNIC_DUMP_NOP = 0,
- QLCNIC_DUMP_READ_CRB = 1,
- QLCNIC_DUMP_READ_MUX = 2,
- QLCNIC_DUMP_QUEUE = 3,
- QLCNIC_DUMP_BRD_CONFIG = 4,
- QLCNIC_DUMP_READ_OCM = 6,
- QLCNIC_DUMP_PEG_REG = 7,
- QLCNIC_DUMP_L1_DTAG = 8,
- QLCNIC_DUMP_L1_ITAG = 9,
- QLCNIC_DUMP_L1_DATA = 11,
- QLCNIC_DUMP_L1_INST = 12,
- QLCNIC_DUMP_L2_DTAG = 21,
- QLCNIC_DUMP_L2_ITAG = 22,
- QLCNIC_DUMP_L2_DATA = 23,
- QLCNIC_DUMP_L2_INST = 24,
- QLCNIC_DUMP_READ_ROM = 71,
- QLCNIC_DUMP_READ_MEM = 72,
- QLCNIC_DUMP_READ_CTRL = 98,
- QLCNIC_DUMP_TLHDR = 99,
- QLCNIC_DUMP_RDEND = 255
-};
-
-#define QLCNIC_DUMP_WCRB BIT_0
-#define QLCNIC_DUMP_RWCRB BIT_1
-#define QLCNIC_DUMP_ANDCRB BIT_2
-#define QLCNIC_DUMP_ORCRB BIT_3
-#define QLCNIC_DUMP_POLLCRB BIT_4
-#define QLCNIC_DUMP_RD_SAVE BIT_5
-#define QLCNIC_DUMP_WRT_SAVED BIT_6
-#define QLCNIC_DUMP_MOD_SAVE_ST BIT_7
-#define QLCNIC_DUMP_SKIP BIT_7
-
-#define QLCNIC_DUMP_MASK_MIN 3
#define QLCNIC_DUMP_MASK_DEF 0x1f
-#define QLCNIC_DUMP_MASK_MAX 0xff
#define QLCNIC_FORCE_FW_DUMP_KEY 0xdeadfeed
#define QLCNIC_ENABLE_FW_DUMP 0xaddfeed
#define QLCNIC_DISABLE_FW_DUMP 0xbadfeed
@@ -1398,12 +1263,6 @@ enum op_codes {
#define QLCNIC_SET_QUIESCENT 0xadd00010
#define QLCNIC_RESET_QUIESCENT 0xadd00020
-struct qlcnic_dump_operations {
- enum op_codes opcode;
- u32 (*handler)(struct qlcnic_adapter *, struct qlcnic_dump_entry *,
- __le32 *);
-};
-
struct _cdrp_cmd {
u32 cmd;
u32 arg1;
@@ -1461,6 +1320,8 @@ void qlcnic_pcie_sem_unlock(struct qlcnic_adapter *, int);
#define __QLCNIC_MAX_LED_RATE 0xf
#define __QLCNIC_MAX_LED_STATE 0x2
+#define MAX_CTL_CHECK 1000
+
int qlcnic_get_board_info(struct qlcnic_adapter *adapter);
int qlcnic_wol_supported(struct qlcnic_adapter *adapter);
int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index aeacf1d..ff879cd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -266,33 +266,6 @@ static const unsigned crb_hub_agt[64] = {
0,
};
-static void qlcnic_read_dump_reg(u32 addr, void __iomem *bar0, u32 *data)
-{
- u32 dest;
- void __iomem *window_reg;
-
- dest = addr & 0xFFFF0000;
- window_reg = bar0 + QLCNIC_FW_DUMP_REG1;
- writel(dest, window_reg);
- readl(window_reg);
- window_reg = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
- *data = readl(window_reg);
-}
-
-static void qlcnic_write_dump_reg(u32 addr, void __iomem *bar0, u32 data)
-{
- u32 dest;
- void __iomem *window_reg;
-
- dest = addr & 0xFFFF0000;
- window_reg = bar0 + QLCNIC_FW_DUMP_REG1;
- writel(dest, window_reg);
- readl(window_reg);
- window_reg = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
- writel(data, window_reg);
- readl(window_reg);
-}
-
/* PCI Windowing for DDR regions. */
#define QLCNIC_PCIE_SEM_TIMEOUT 10000
@@ -1088,8 +1061,6 @@ qlcnic_pci_camqm_write_2M(struct qlcnic_adapter *adapter, u64 off, u64 data)
mutex_unlock(&adapter->ahw->mem_lock);
}
-#define MAX_CTL_CHECK 1000
-
int
qlcnic_pci_mem_write_2M(struct qlcnic_adapter *adapter,
u64 off, u64 data)
@@ -1347,460 +1318,3 @@ int qlcnic_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
return rv;
}
-
-/* FW dump related functions */
-static u32 qlcnic_dump_crb(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i;
- u32 addr, data;
- struct __crb *crb = &entry->region.crb;
- void __iomem *base = adapter->ahw->pci_base0;
-
- addr = crb->addr;
-
- for (i = 0; i < crb->no_ops; i++) {
- qlcnic_read_dump_reg(addr, base, &data);
- *buffer++ = cpu_to_le32(addr);
- *buffer++ = cpu_to_le32(data);
- addr += crb->stride;
- }
- return crb->no_ops * 2 * sizeof(u32);
-}
-
-static u32 qlcnic_dump_ctrl(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i, k, timeout = 0;
- void __iomem *base = adapter->ahw->pci_base0;
- u32 addr, data;
- u8 opcode, no_ops;
- struct __ctrl *ctr = &entry->region.ctrl;
- struct qlcnic_dump_template_hdr *t_hdr = adapter->ahw->fw_dump.tmpl_hdr;
-
- addr = ctr->addr;
- no_ops = ctr->no_ops;
-
- for (i = 0; i < no_ops; i++) {
- k = 0;
- opcode = 0;
- for (k = 0; k < 8; k++) {
- if (!(ctr->opcode & (1 << k)))
- continue;
- switch (1 << k) {
- case QLCNIC_DUMP_WCRB:
- qlcnic_write_dump_reg(addr, base, ctr->val1);
- break;
- case QLCNIC_DUMP_RWCRB:
- qlcnic_read_dump_reg(addr, base, &data);
- qlcnic_write_dump_reg(addr, base, data);
- break;
- case QLCNIC_DUMP_ANDCRB:
- qlcnic_read_dump_reg(addr, base, &data);
- qlcnic_write_dump_reg(addr, base,
- data & ctr->val2);
- break;
- case QLCNIC_DUMP_ORCRB:
- qlcnic_read_dump_reg(addr, base, &data);
- qlcnic_write_dump_reg(addr, base,
- data | ctr->val3);
- break;
- case QLCNIC_DUMP_POLLCRB:
- while (timeout <= ctr->timeout) {
- qlcnic_read_dump_reg(addr, base, &data);
- if ((data & ctr->val2) == ctr->val1)
- break;
- msleep(1);
- timeout++;
- }
- if (timeout > ctr->timeout) {
- dev_info(&adapter->pdev->dev,
- "Timed out, aborting poll CRB\n");
- return -EINVAL;
- }
- break;
- case QLCNIC_DUMP_RD_SAVE:
- if (ctr->index_a)
- addr = t_hdr->saved_state[ctr->index_a];
- qlcnic_read_dump_reg(addr, base, &data);
- t_hdr->saved_state[ctr->index_v] = data;
- break;
- case QLCNIC_DUMP_WRT_SAVED:
- if (ctr->index_v)
- data = t_hdr->saved_state[ctr->index_v];
- else
- data = ctr->val1;
- if (ctr->index_a)
- addr = t_hdr->saved_state[ctr->index_a];
- qlcnic_write_dump_reg(addr, base, data);
- break;
- case QLCNIC_DUMP_MOD_SAVE_ST:
- data = t_hdr->saved_state[ctr->index_v];
- data <<= ctr->shl_val;
- data >>= ctr->shr_val;
- if (ctr->val2)
- data &= ctr->val2;
- data |= ctr->val3;
- data += ctr->val1;
- t_hdr->saved_state[ctr->index_v] = data;
- break;
- default:
- dev_info(&adapter->pdev->dev,
- "Unknown opcode\n");
- break;
- }
- }
- addr += ctr->stride;
- }
- return 0;
-}
-
-static u32 qlcnic_dump_mux(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int loop;
- u32 val, data = 0;
- struct __mux *mux = &entry->region.mux;
- void __iomem *base = adapter->ahw->pci_base0;
-
- val = mux->val;
- for (loop = 0; loop < mux->no_ops; loop++) {
- qlcnic_write_dump_reg(mux->addr, base, val);
- qlcnic_read_dump_reg(mux->read_addr, base, &data);
- *buffer++ = cpu_to_le32(val);
- *buffer++ = cpu_to_le32(data);
- val += mux->val_stride;
- }
- return 2 * mux->no_ops * sizeof(u32);
-}
-
-static u32 qlcnic_dump_que(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i, loop;
- u32 cnt, addr, data, que_id = 0;
- void __iomem *base = adapter->ahw->pci_base0;
- struct __queue *que = &entry->region.que;
-
- addr = que->read_addr;
- cnt = que->read_addr_cnt;
-
- for (loop = 0; loop < que->no_ops; loop++) {
- qlcnic_write_dump_reg(que->sel_addr, base, que_id);
- addr = que->read_addr;
- for (i = 0; i < cnt; i++) {
- qlcnic_read_dump_reg(addr, base, &data);
- *buffer++ = cpu_to_le32(data);
- addr += que->read_addr_stride;
- }
- que_id += que->stride;
- }
- return que->no_ops * cnt * sizeof(u32);
-}
-
-static u32 qlcnic_dump_ocm(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i;
- u32 data;
- void __iomem *addr;
- struct __ocm *ocm = &entry->region.ocm;
-
- addr = adapter->ahw->pci_base0 + ocm->read_addr;
- for (i = 0; i < ocm->no_ops; i++) {
- data = readl(addr);
- *buffer++ = cpu_to_le32(data);
- addr += ocm->read_addr_stride;
- }
- return ocm->no_ops * sizeof(u32);
-}
-
-static u32 qlcnic_read_rom(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i, count = 0;
- u32 fl_addr, size, val, lck_val, addr;
- struct __mem *rom = &entry->region.mem;
- void __iomem *base = adapter->ahw->pci_base0;
-
- fl_addr = rom->addr;
- size = rom->size/4;
-lock_try:
- lck_val = readl(base + QLCNIC_FLASH_SEM2_LK);
- if (!lck_val && count < MAX_CTL_CHECK) {
- msleep(10);
- count++;
- goto lock_try;
- }
- writel(adapter->ahw->pci_func, (base + QLCNIC_FLASH_LOCK_ID));
- for (i = 0; i < size; i++) {
- addr = fl_addr & 0xFFFF0000;
- qlcnic_write_dump_reg(FLASH_ROM_WINDOW, base, addr);
- addr = LSW(fl_addr) + FLASH_ROM_DATA;
- qlcnic_read_dump_reg(addr, base, &val);
- fl_addr += 4;
- *buffer++ = cpu_to_le32(val);
- }
- readl(base + QLCNIC_FLASH_SEM2_ULK);
- return rom->size;
-}
-
-static u32 qlcnic_dump_l1_cache(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i;
- u32 cnt, val, data, addr;
- void __iomem *base = adapter->ahw->pci_base0;
- struct __cache *l1 = &entry->region.cache;
-
- val = l1->init_tag_val;
-
- for (i = 0; i < l1->no_ops; i++) {
- qlcnic_write_dump_reg(l1->addr, base, val);
- qlcnic_write_dump_reg(l1->ctrl_addr, base, LSW(l1->ctrl_val));
- addr = l1->read_addr;
- cnt = l1->read_addr_num;
- while (cnt) {
- qlcnic_read_dump_reg(addr, base, &data);
- *buffer++ = cpu_to_le32(data);
- addr += l1->read_addr_stride;
- cnt--;
- }
- val += l1->stride;
- }
- return l1->no_ops * l1->read_addr_num * sizeof(u32);
-}
-
-static u32 qlcnic_dump_l2_cache(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- int i;
- u32 cnt, val, data, addr;
- u8 poll_mask, poll_to, time_out = 0;
- void __iomem *base = adapter->ahw->pci_base0;
- struct __cache *l2 = &entry->region.cache;
-
- val = l2->init_tag_val;
- poll_mask = LSB(MSW(l2->ctrl_val));
- poll_to = MSB(MSW(l2->ctrl_val));
-
- for (i = 0; i < l2->no_ops; i++) {
- qlcnic_write_dump_reg(l2->addr, base, val);
- if (LSW(l2->ctrl_val))
- qlcnic_write_dump_reg(l2->ctrl_addr, base,
- LSW(l2->ctrl_val));
- if (!poll_mask)
- goto skip_poll;
- do {
- qlcnic_read_dump_reg(l2->ctrl_addr, base, &data);
- if (!(data & poll_mask))
- break;
- msleep(1);
- time_out++;
- } while (time_out <= poll_to);
-
- if (time_out > poll_to) {
- dev_err(&adapter->pdev->dev,
- "Timeout exceeded in %s, aborting dump\n",
- __func__);
- return -EINVAL;
- }
-skip_poll:
- addr = l2->read_addr;
- cnt = l2->read_addr_num;
- while (cnt) {
- qlcnic_read_dump_reg(addr, base, &data);
- *buffer++ = cpu_to_le32(data);
- addr += l2->read_addr_stride;
- cnt--;
- }
- val += l2->stride;
- }
- return l2->no_ops * l2->read_addr_num * sizeof(u32);
-}
-
-static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- u32 addr, data, test, ret = 0;
- int i, reg_read;
- struct __mem *mem = &entry->region.mem;
- void __iomem *base = adapter->ahw->pci_base0;
-
- reg_read = mem->size;
- addr = mem->addr;
- /* check for data size of multiple of 16 and 16 byte alignment */
- if ((addr & 0xf) || (reg_read%16)) {
- dev_info(&adapter->pdev->dev,
- "Unaligned memory addr:0x%x size:0x%x\n",
- addr, reg_read);
- return -EINVAL;
- }
-
- mutex_lock(&adapter->ahw->mem_lock);
-
- while (reg_read != 0) {
- qlcnic_write_dump_reg(MIU_TEST_ADDR_LO, base, addr);
- qlcnic_write_dump_reg(MIU_TEST_ADDR_HI, base, 0);
- qlcnic_write_dump_reg(MIU_TEST_CTR, base,
- TA_CTL_ENABLE | TA_CTL_START);
-
- for (i = 0; i < MAX_CTL_CHECK; i++) {
- qlcnic_read_dump_reg(MIU_TEST_CTR, base, &test);
- if (!(test & TA_CTL_BUSY))
- break;
- }
- if (i == MAX_CTL_CHECK) {
- if (printk_ratelimit()) {
- dev_err(&adapter->pdev->dev,
- "failed to read through agent\n");
- ret = -EINVAL;
- goto out;
- }
- }
- for (i = 0; i < 4; i++) {
- qlcnic_read_dump_reg(MIU_TEST_READ_DATA[i], base,
- &data);
- *buffer++ = cpu_to_le32(data);
- }
- addr += 16;
- reg_read -= 16;
- ret += 16;
- }
-out:
- mutex_unlock(&adapter->ahw->mem_lock);
- return mem->size;
-}
-
-static u32 qlcnic_dump_nop(struct qlcnic_adapter *adapter,
- struct qlcnic_dump_entry *entry, __le32 *buffer)
-{
- entry->hdr.flags |= QLCNIC_DUMP_SKIP;
- return 0;
-}
-
-static const struct qlcnic_dump_operations fw_dump_ops[] = {
- { QLCNIC_DUMP_NOP, qlcnic_dump_nop },
- { QLCNIC_DUMP_READ_CRB, qlcnic_dump_crb },
- { QLCNIC_DUMP_READ_MUX, qlcnic_dump_mux },
- { QLCNIC_DUMP_QUEUE, qlcnic_dump_que },
- { QLCNIC_DUMP_BRD_CONFIG, qlcnic_read_rom },
- { QLCNIC_DUMP_READ_OCM, qlcnic_dump_ocm },
- { QLCNIC_DUMP_PEG_REG, qlcnic_dump_ctrl },
- { QLCNIC_DUMP_L1_DTAG, qlcnic_dump_l1_cache },
- { QLCNIC_DUMP_L1_ITAG, qlcnic_dump_l1_cache },
- { QLCNIC_DUMP_L1_DATA, qlcnic_dump_l1_cache },
- { QLCNIC_DUMP_L1_INST, qlcnic_dump_l1_cache },
- { QLCNIC_DUMP_L2_DTAG, qlcnic_dump_l2_cache },
- { QLCNIC_DUMP_L2_ITAG, qlcnic_dump_l2_cache },
- { QLCNIC_DUMP_L2_DATA, qlcnic_dump_l2_cache },
- { QLCNIC_DUMP_L2_INST, qlcnic_dump_l2_cache },
- { QLCNIC_DUMP_READ_ROM, qlcnic_read_rom },
- { QLCNIC_DUMP_READ_MEM, qlcnic_read_memory },
- { QLCNIC_DUMP_READ_CTRL, qlcnic_dump_ctrl },
- { QLCNIC_DUMP_TLHDR, qlcnic_dump_nop },
- { QLCNIC_DUMP_RDEND, qlcnic_dump_nop },
-};
-
-/* Walk the template and collect dump for each entry in the dump template */
-static int
-qlcnic_valid_dump_entry(struct device *dev, struct qlcnic_dump_entry *entry,
- u32 size)
-{
- int ret = 1;
- if (size != entry->hdr.cap_size) {
- dev_info(dev,
- "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
- entry->hdr.type, entry->hdr.mask, size, entry->hdr.cap_size);
- dev_info(dev, "Aborting further dump capture\n");
- ret = 0;
- }
- return ret;
-}
-
-int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
-{
- __le32 *buffer;
- char mesg[64];
- char *msg[] = {mesg, NULL};
- int i, k, ops_cnt, ops_index, dump_size = 0;
- u32 entry_offset, dump, no_entries, buf_offset = 0;
- struct qlcnic_dump_entry *entry;
- struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
- struct qlcnic_dump_template_hdr *tmpl_hdr = fw_dump->tmpl_hdr;
-
- if (fw_dump->clr) {
- dev_info(&adapter->pdev->dev,
- "Previous dump not cleared, not capturing dump\n");
- return -EIO;
- }
- /* Calculate the size for dump data area only */
- for (i = 2, k = 1; (i & QLCNIC_DUMP_MASK_MAX); i <<= 1, k++)
- if (i & tmpl_hdr->drv_cap_mask)
- dump_size += tmpl_hdr->cap_sizes[k];
- if (!dump_size)
- return -EIO;
-
- fw_dump->data = vzalloc(dump_size);
- if (!fw_dump->data) {
- dev_info(&adapter->pdev->dev,
- "Unable to allocate (%d KB) for fw dump\n",
- dump_size/1024);
- return -ENOMEM;
- }
- buffer = fw_dump->data;
- fw_dump->size = dump_size;
- no_entries = tmpl_hdr->num_entries;
- ops_cnt = ARRAY_SIZE(fw_dump_ops);
- entry_offset = tmpl_hdr->offset;
- tmpl_hdr->sys_info[0] = QLCNIC_DRIVER_VERSION;
- tmpl_hdr->sys_info[1] = adapter->fw_version;
-
- for (i = 0; i < no_entries; i++) {
- entry = (void *)tmpl_hdr + entry_offset;
- if (!(entry->hdr.mask & tmpl_hdr->drv_cap_mask)) {
- entry->hdr.flags |= QLCNIC_DUMP_SKIP;
- entry_offset += entry->hdr.offset;
- continue;
- }
- /* Find the handler for this entry */
- ops_index = 0;
- while (ops_index < ops_cnt) {
- if (entry->hdr.type == fw_dump_ops[ops_index].opcode)
- break;
- ops_index++;
- }
- if (ops_index == ops_cnt) {
- dev_info(&adapter->pdev->dev,
- "Invalid entry type %d, exiting dump\n",
- entry->hdr.type);
- goto error;
- }
- /* Collect dump for this entry */
- dump = fw_dump_ops[ops_index].handler(adapter, entry, buffer);
- if (dump && !qlcnic_valid_dump_entry(&adapter->pdev->dev, entry,
- dump))
- entry->hdr.flags |= QLCNIC_DUMP_SKIP;
- buf_offset += entry->hdr.cap_size;
- entry_offset += entry->hdr.offset;
- buffer = fw_dump->data + buf_offset;
- }
- if (dump_size != buf_offset) {
- dev_info(&adapter->pdev->dev,
- "Captured(%d) and expected size(%d) do not match\n",
- buf_offset, dump_size);
- goto error;
- } else {
- fw_dump->clr = 1;
- snprintf(mesg, sizeof(mesg), "FW_DUMP=%s",
- adapter->netdev->name);
- dev_info(&adapter->pdev->dev, "Dump data, %d bytes captured\n",
- fw_dump->size);
- /* Send a udev event to notify availability of FW dump */
- kobject_uevent_env(&adapter->pdev->dev.kobj, KOBJ_CHANGE, msg);
- return 0;
- }
-error:
- vfree(fw_dump->data);
- return -EINVAL;
-}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
new file mode 100644
index 0000000..5e22c62
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
@@ -0,0 +1,629 @@
+#include "qlcnic.h"
+#include "qlcnic_hdr.h"
+
+#include <net/ip.h>
+
+#define QLCNIC_DUMP_WCRB BIT_0
+#define QLCNIC_DUMP_RWCRB BIT_1
+#define QLCNIC_DUMP_ANDCRB BIT_2
+#define QLCNIC_DUMP_ORCRB BIT_3
+#define QLCNIC_DUMP_POLLCRB BIT_4
+#define QLCNIC_DUMP_RD_SAVE BIT_5
+#define QLCNIC_DUMP_WRT_SAVED BIT_6
+#define QLCNIC_DUMP_MOD_SAVE_ST BIT_7
+#define QLCNIC_DUMP_SKIP BIT_7
+
+#define QLCNIC_DUMP_MASK_MAX 0xff
+
+struct qlcnic_common_entry_hdr {
+ u32 type;
+ u32 offset;
+ u32 cap_size;
+ u8 mask;
+ u8 rsvd[2];
+ u8 flags;
+} __packed;
+
+struct __crb {
+ u32 addr;
+ u8 stride;
+ u8 rsvd1[3];
+ u32 data_size;
+ u32 no_ops;
+ u32 rsvd2[4];
+} __packed;
+
+struct __ctrl {
+ u32 addr;
+ u8 stride;
+ u8 index_a;
+ u16 timeout;
+ u32 data_size;
+ u32 no_ops;
+ u8 opcode;
+ u8 index_v;
+ u8 shl_val;
+ u8 shr_val;
+ u32 val1;
+ u32 val2;
+ u32 val3;
+} __packed;
+
+struct __cache {
+ u32 addr;
+ u16 stride;
+ u16 init_tag_val;
+ u32 size;
+ u32 no_ops;
+ u32 ctrl_addr;
+ u32 ctrl_val;
+ u32 read_addr;
+ u8 read_addr_stride;
+ u8 read_addr_num;
+ u8 rsvd1[2];
+} __packed;
+
+struct __ocm {
+ u8 rsvd[8];
+ u32 size;
+ u32 no_ops;
+ u8 rsvd1[8];
+ u32 read_addr;
+ u32 read_addr_stride;
+} __packed;
+
+struct __mem {
+ u8 rsvd[24];
+ u32 addr;
+ u32 size;
+} __packed;
+
+struct __mux {
+ u32 addr;
+ u8 rsvd[4];
+ u32 size;
+ u32 no_ops;
+ u32 val;
+ u32 val_stride;
+ u32 read_addr;
+ u8 rsvd2[4];
+} __packed;
+
+struct __queue {
+ u32 sel_addr;
+ u16 stride;
+ u8 rsvd[2];
+ u32 size;
+ u32 no_ops;
+ u8 rsvd2[8];
+ u32 read_addr;
+ u8 read_addr_stride;
+ u8 read_addr_cnt;
+ u8 rsvd3[2];
+} __packed;
+
+struct qlcnic_dump_entry {
+ struct qlcnic_common_entry_hdr hdr;
+ union {
+ struct __crb crb;
+ struct __cache cache;
+ struct __ocm ocm;
+ struct __mem mem;
+ struct __mux mux;
+ struct __queue que;
+ struct __ctrl ctrl;
+ } region;
+} __packed;
+
+enum op_codes {
+ QLCNIC_DUMP_NOP = 0,
+ QLCNIC_DUMP_READ_CRB = 1,
+ QLCNIC_DUMP_READ_MUX = 2,
+ QLCNIC_DUMP_QUEUE = 3,
+ QLCNIC_DUMP_BRD_CONFIG = 4,
+ QLCNIC_DUMP_READ_OCM = 6,
+ QLCNIC_DUMP_PEG_REG = 7,
+ QLCNIC_DUMP_L1_DTAG = 8,
+ QLCNIC_DUMP_L1_ITAG = 9,
+ QLCNIC_DUMP_L1_DATA = 11,
+ QLCNIC_DUMP_L1_INST = 12,
+ QLCNIC_DUMP_L2_DTAG = 21,
+ QLCNIC_DUMP_L2_ITAG = 22,
+ QLCNIC_DUMP_L2_DATA = 23,
+ QLCNIC_DUMP_L2_INST = 24,
+ QLCNIC_DUMP_READ_ROM = 71,
+ QLCNIC_DUMP_READ_MEM = 72,
+ QLCNIC_DUMP_READ_CTRL = 98,
+ QLCNIC_DUMP_TLHDR = 99,
+ QLCNIC_DUMP_RDEND = 255
+};
+
+struct qlcnic_dump_operations {
+ enum op_codes opcode;
+ u32 (*handler)(struct qlcnic_adapter *, struct qlcnic_dump_entry *,
+ __le32 *);
+};
+
+static void qlcnic_read_dump_reg(u32 addr, void __iomem *bar0, u32 *data)
+{
+ u32 dest;
+ void __iomem *window_reg;
+
+ dest = addr & 0xFFFF0000;
+ window_reg = bar0 + QLCNIC_FW_DUMP_REG1;
+ writel(dest, window_reg);
+ readl(window_reg);
+ window_reg = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
+ *data = readl(window_reg);
+}
+
+static void qlcnic_write_dump_reg(u32 addr, void __iomem *bar0, u32 data)
+{
+ u32 dest;
+ void __iomem *window_reg;
+
+ dest = addr & 0xFFFF0000;
+ window_reg = bar0 + QLCNIC_FW_DUMP_REG1;
+ writel(dest, window_reg);
+ readl(window_reg);
+ window_reg = bar0 + QLCNIC_FW_DUMP_REG2 + LSW(addr);
+ writel(data, window_reg);
+ readl(window_reg);
+}
+
+/* FW dump related functions */
+static u32 qlcnic_dump_crb(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i;
+ u32 addr, data;
+ struct __crb *crb = &entry->region.crb;
+ void __iomem *base = adapter->ahw->pci_base0;
+
+ addr = crb->addr;
+
+ for (i = 0; i < crb->no_ops; i++) {
+ qlcnic_read_dump_reg(addr, base, &data);
+ *buffer++ = cpu_to_le32(addr);
+ *buffer++ = cpu_to_le32(data);
+ addr += crb->stride;
+ }
+ return crb->no_ops * 2 * sizeof(u32);
+}
+
+static u32 qlcnic_dump_ctrl(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i, k, timeout = 0;
+ void __iomem *base = adapter->ahw->pci_base0;
+ u32 addr, data;
+ u8 opcode, no_ops;
+ struct __ctrl *ctr = &entry->region.ctrl;
+ struct qlcnic_dump_template_hdr *t_hdr = adapter->ahw->fw_dump.tmpl_hdr;
+
+ addr = ctr->addr;
+ no_ops = ctr->no_ops;
+
+ for (i = 0; i < no_ops; i++) {
+ k = 0;
+ opcode = 0;
+ for (k = 0; k < 8; k++) {
+ if (!(ctr->opcode & (1 << k)))
+ continue;
+ switch (1 << k) {
+ case QLCNIC_DUMP_WCRB:
+ qlcnic_write_dump_reg(addr, base, ctr->val1);
+ break;
+ case QLCNIC_DUMP_RWCRB:
+ qlcnic_read_dump_reg(addr, base, &data);
+ qlcnic_write_dump_reg(addr, base, data);
+ break;
+ case QLCNIC_DUMP_ANDCRB:
+ qlcnic_read_dump_reg(addr, base, &data);
+ qlcnic_write_dump_reg(addr, base,
+ data & ctr->val2);
+ break;
+ case QLCNIC_DUMP_ORCRB:
+ qlcnic_read_dump_reg(addr, base, &data);
+ qlcnic_write_dump_reg(addr, base,
+ data | ctr->val3);
+ break;
+ case QLCNIC_DUMP_POLLCRB:
+ while (timeout <= ctr->timeout) {
+ qlcnic_read_dump_reg(addr, base, &data);
+ if ((data & ctr->val2) == ctr->val1)
+ break;
+ msleep(1);
+ timeout++;
+ }
+ if (timeout > ctr->timeout) {
+ dev_info(&adapter->pdev->dev,
+ "Timed out, aborting poll CRB\n");
+ return -EINVAL;
+ }
+ break;
+ case QLCNIC_DUMP_RD_SAVE:
+ if (ctr->index_a)
+ addr = t_hdr->saved_state[ctr->index_a];
+ qlcnic_read_dump_reg(addr, base, &data);
+ t_hdr->saved_state[ctr->index_v] = data;
+ break;
+ case QLCNIC_DUMP_WRT_SAVED:
+ if (ctr->index_v)
+ data = t_hdr->saved_state[ctr->index_v];
+ else
+ data = ctr->val1;
+ if (ctr->index_a)
+ addr = t_hdr->saved_state[ctr->index_a];
+ qlcnic_write_dump_reg(addr, base, data);
+ break;
+ case QLCNIC_DUMP_MOD_SAVE_ST:
+ data = t_hdr->saved_state[ctr->index_v];
+ data <<= ctr->shl_val;
+ data >>= ctr->shr_val;
+ if (ctr->val2)
+ data &= ctr->val2;
+ data |= ctr->val3;
+ data += ctr->val1;
+ t_hdr->saved_state[ctr->index_v] = data;
+ break;
+ default:
+ dev_info(&adapter->pdev->dev,
+ "Unknown opcode\n");
+ break;
+ }
+ }
+ addr += ctr->stride;
+ }
+ return 0;
+}
+
+static u32 qlcnic_dump_mux(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int loop;
+ u32 val, data = 0;
+ struct __mux *mux = &entry->region.mux;
+ void __iomem *base = adapter->ahw->pci_base0;
+
+ val = mux->val;
+ for (loop = 0; loop < mux->no_ops; loop++) {
+ qlcnic_write_dump_reg(mux->addr, base, val);
+ qlcnic_read_dump_reg(mux->read_addr, base, &data);
+ *buffer++ = cpu_to_le32(val);
+ *buffer++ = cpu_to_le32(data);
+ val += mux->val_stride;
+ }
+ return 2 * mux->no_ops * sizeof(u32);
+}
+
+static u32 qlcnic_dump_que(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i, loop;
+ u32 cnt, addr, data, que_id = 0;
+ void __iomem *base = adapter->ahw->pci_base0;
+ struct __queue *que = &entry->region.que;
+
+ addr = que->read_addr;
+ cnt = que->read_addr_cnt;
+
+ for (loop = 0; loop < que->no_ops; loop++) {
+ qlcnic_write_dump_reg(que->sel_addr, base, que_id);
+ addr = que->read_addr;
+ for (i = 0; i < cnt; i++) {
+ qlcnic_read_dump_reg(addr, base, &data);
+ *buffer++ = cpu_to_le32(data);
+ addr += que->read_addr_stride;
+ }
+ que_id += que->stride;
+ }
+ return que->no_ops * cnt * sizeof(u32);
+}
+
+static u32 qlcnic_dump_ocm(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i;
+ u32 data;
+ void __iomem *addr;
+ struct __ocm *ocm = &entry->region.ocm;
+
+ addr = adapter->ahw->pci_base0 + ocm->read_addr;
+ for (i = 0; i < ocm->no_ops; i++) {
+ data = readl(addr);
+ *buffer++ = cpu_to_le32(data);
+ addr += ocm->read_addr_stride;
+ }
+ return ocm->no_ops * sizeof(u32);
+}
+
+static u32 qlcnic_read_rom(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i, count = 0;
+ u32 fl_addr, size, val, lck_val, addr;
+ struct __mem *rom = &entry->region.mem;
+ void __iomem *base = adapter->ahw->pci_base0;
+
+ fl_addr = rom->addr;
+ size = rom->size/4;
+lock_try:
+ lck_val = readl(base + QLCNIC_FLASH_SEM2_LK);
+ if (!lck_val && count < MAX_CTL_CHECK) {
+ msleep(10);
+ count++;
+ goto lock_try;
+ }
+ writel(adapter->ahw->pci_func, (base + QLCNIC_FLASH_LOCK_ID));
+ for (i = 0; i < size; i++) {
+ addr = fl_addr & 0xFFFF0000;
+ qlcnic_write_dump_reg(FLASH_ROM_WINDOW, base, addr);
+ addr = LSW(fl_addr) + FLASH_ROM_DATA;
+ qlcnic_read_dump_reg(addr, base, &val);
+ fl_addr += 4;
+ *buffer++ = cpu_to_le32(val);
+ }
+ readl(base + QLCNIC_FLASH_SEM2_ULK);
+ return rom->size;
+}
+
+static u32 qlcnic_dump_l1_cache(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i;
+ u32 cnt, val, data, addr;
+ void __iomem *base = adapter->ahw->pci_base0;
+ struct __cache *l1 = &entry->region.cache;
+
+ val = l1->init_tag_val;
+
+ for (i = 0; i < l1->no_ops; i++) {
+ qlcnic_write_dump_reg(l1->addr, base, val);
+ qlcnic_write_dump_reg(l1->ctrl_addr, base, LSW(l1->ctrl_val));
+ addr = l1->read_addr;
+ cnt = l1->read_addr_num;
+ while (cnt) {
+ qlcnic_read_dump_reg(addr, base, &data);
+ *buffer++ = cpu_to_le32(data);
+ addr += l1->read_addr_stride;
+ cnt--;
+ }
+ val += l1->stride;
+ }
+ return l1->no_ops * l1->read_addr_num * sizeof(u32);
+}
+
+static u32 qlcnic_dump_l2_cache(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ int i;
+ u32 cnt, val, data, addr;
+ u8 poll_mask, poll_to, time_out = 0;
+ void __iomem *base = adapter->ahw->pci_base0;
+ struct __cache *l2 = &entry->region.cache;
+
+ val = l2->init_tag_val;
+ poll_mask = LSB(MSW(l2->ctrl_val));
+ poll_to = MSB(MSW(l2->ctrl_val));
+
+ for (i = 0; i < l2->no_ops; i++) {
+ qlcnic_write_dump_reg(l2->addr, base, val);
+ if (LSW(l2->ctrl_val))
+ qlcnic_write_dump_reg(l2->ctrl_addr, base,
+ LSW(l2->ctrl_val));
+ if (!poll_mask)
+ goto skip_poll;
+ do {
+ qlcnic_read_dump_reg(l2->ctrl_addr, base, &data);
+ if (!(data & poll_mask))
+ break;
+ msleep(1);
+ time_out++;
+ } while (time_out <= poll_to);
+
+ if (time_out > poll_to) {
+ dev_err(&adapter->pdev->dev,
+ "Timeout exceeded in %s, aborting dump\n",
+ __func__);
+ return -EINVAL;
+ }
+skip_poll:
+ addr = l2->read_addr;
+ cnt = l2->read_addr_num;
+ while (cnt) {
+ qlcnic_read_dump_reg(addr, base, &data);
+ *buffer++ = cpu_to_le32(data);
+ addr += l2->read_addr_stride;
+ cnt--;
+ }
+ val += l2->stride;
+ }
+ return l2->no_ops * l2->read_addr_num * sizeof(u32);
+}
+
+static u32 qlcnic_read_memory(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ u32 addr, data, test, ret = 0;
+ int i, reg_read;
+ struct __mem *mem = &entry->region.mem;
+ void __iomem *base = adapter->ahw->pci_base0;
+
+ reg_read = mem->size;
+ addr = mem->addr;
+ /* check for data size of multiple of 16 and 16 byte alignment */
+ if ((addr & 0xf) || (reg_read%16)) {
+ dev_info(&adapter->pdev->dev,
+ "Unaligned memory addr:0x%x size:0x%x\n",
+ addr, reg_read);
+ return -EINVAL;
+ }
+
+ mutex_lock(&adapter->ahw->mem_lock);
+
+ while (reg_read != 0) {
+ qlcnic_write_dump_reg(MIU_TEST_ADDR_LO, base, addr);
+ qlcnic_write_dump_reg(MIU_TEST_ADDR_HI, base, 0);
+ qlcnic_write_dump_reg(MIU_TEST_CTR, base,
+ TA_CTL_ENABLE | TA_CTL_START);
+
+ for (i = 0; i < MAX_CTL_CHECK; i++) {
+ qlcnic_read_dump_reg(MIU_TEST_CTR, base, &test);
+ if (!(test & TA_CTL_BUSY))
+ break;
+ }
+ if (i == MAX_CTL_CHECK) {
+ if (printk_ratelimit()) {
+ dev_err(&adapter->pdev->dev,
+ "failed to read through agent\n");
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+ for (i = 0; i < 4; i++) {
+ qlcnic_read_dump_reg(MIU_TEST_READ_DATA[i], base,
+ &data);
+ *buffer++ = cpu_to_le32(data);
+ }
+ addr += 16;
+ reg_read -= 16;
+ ret += 16;
+ }
+out:
+ mutex_unlock(&adapter->ahw->mem_lock);
+ return mem->size;
+}
+
+static u32 qlcnic_dump_nop(struct qlcnic_adapter *adapter,
+ struct qlcnic_dump_entry *entry, __le32 *buffer)
+{
+ entry->hdr.flags |= QLCNIC_DUMP_SKIP;
+ return 0;
+}
+
+static const struct qlcnic_dump_operations fw_dump_ops[] = {
+ { QLCNIC_DUMP_NOP, qlcnic_dump_nop },
+ { QLCNIC_DUMP_READ_CRB, qlcnic_dump_crb },
+ { QLCNIC_DUMP_READ_MUX, qlcnic_dump_mux },
+ { QLCNIC_DUMP_QUEUE, qlcnic_dump_que },
+ { QLCNIC_DUMP_BRD_CONFIG, qlcnic_read_rom },
+ { QLCNIC_DUMP_READ_OCM, qlcnic_dump_ocm },
+ { QLCNIC_DUMP_PEG_REG, qlcnic_dump_ctrl },
+ { QLCNIC_DUMP_L1_DTAG, qlcnic_dump_l1_cache },
+ { QLCNIC_DUMP_L1_ITAG, qlcnic_dump_l1_cache },
+ { QLCNIC_DUMP_L1_DATA, qlcnic_dump_l1_cache },
+ { QLCNIC_DUMP_L1_INST, qlcnic_dump_l1_cache },
+ { QLCNIC_DUMP_L2_DTAG, qlcnic_dump_l2_cache },
+ { QLCNIC_DUMP_L2_ITAG, qlcnic_dump_l2_cache },
+ { QLCNIC_DUMP_L2_DATA, qlcnic_dump_l2_cache },
+ { QLCNIC_DUMP_L2_INST, qlcnic_dump_l2_cache },
+ { QLCNIC_DUMP_READ_ROM, qlcnic_read_rom },
+ { QLCNIC_DUMP_READ_MEM, qlcnic_read_memory },
+ { QLCNIC_DUMP_READ_CTRL, qlcnic_dump_ctrl },
+ { QLCNIC_DUMP_TLHDR, qlcnic_dump_nop },
+ { QLCNIC_DUMP_RDEND, qlcnic_dump_nop },
+};
+
+/* Walk the template and collect dump for each entry in the dump template */
+static int
+qlcnic_valid_dump_entry(struct device *dev, struct qlcnic_dump_entry *entry,
+ u32 size)
+{
+ int ret = 1;
+ if (size != entry->hdr.cap_size) {
+ dev_info(dev,
+ "Invalidate dump, Type:%d\tMask:%d\tSize:%dCap_size:%d\n",
+ entry->hdr.type, entry->hdr.mask, size, entry->hdr.cap_size);
+ dev_info(dev, "Aborting further dump capture\n");
+ ret = 0;
+ }
+ return ret;
+}
+
+int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
+{
+ __le32 *buffer;
+ char mesg[64];
+ char *msg[] = {mesg, NULL};
+ int i, k, ops_cnt, ops_index, dump_size = 0;
+ u32 entry_offset, dump, no_entries, buf_offset = 0;
+ struct qlcnic_dump_entry *entry;
+ struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
+ struct qlcnic_dump_template_hdr *tmpl_hdr = fw_dump->tmpl_hdr;
+
+ if (fw_dump->clr) {
+ dev_info(&adapter->pdev->dev,
+ "Previous dump not cleared, not capturing dump\n");
+ return -EIO;
+ }
+ /* Calculate the size for dump data area only */
+ for (i = 2, k = 1; (i & QLCNIC_DUMP_MASK_MAX); i <<= 1, k++)
+ if (i & tmpl_hdr->drv_cap_mask)
+ dump_size += tmpl_hdr->cap_sizes[k];
+ if (!dump_size)
+ return -EIO;
+
+ fw_dump->data = vzalloc(dump_size);
+ if (!fw_dump->data) {
+ dev_info(&adapter->pdev->dev,
+ "Unable to allocate (%d KB) for fw dump\n",
+ dump_size/1024);
+ return -ENOMEM;
+ }
+ buffer = fw_dump->data;
+ fw_dump->size = dump_size;
+ no_entries = tmpl_hdr->num_entries;
+ ops_cnt = ARRAY_SIZE(fw_dump_ops);
+ entry_offset = tmpl_hdr->offset;
+ tmpl_hdr->sys_info[0] = QLCNIC_DRIVER_VERSION;
+ tmpl_hdr->sys_info[1] = adapter->fw_version;
+
+ for (i = 0; i < no_entries; i++) {
+ entry = (void *)tmpl_hdr + entry_offset;
+ if (!(entry->hdr.mask & tmpl_hdr->drv_cap_mask)) {
+ entry->hdr.flags |= QLCNIC_DUMP_SKIP;
+ entry_offset += entry->hdr.offset;
+ continue;
+ }
+ /* Find the handler for this entry */
+ ops_index = 0;
+ while (ops_index < ops_cnt) {
+ if (entry->hdr.type == fw_dump_ops[ops_index].opcode)
+ break;
+ ops_index++;
+ }
+ if (ops_index == ops_cnt) {
+ dev_info(&adapter->pdev->dev,
+ "Invalid entry type %d, exiting dump\n",
+ entry->hdr.type);
+ goto error;
+ }
+ /* Collect dump for this entry */
+ dump = fw_dump_ops[ops_index].handler(adapter, entry, buffer);
+ if (dump && !qlcnic_valid_dump_entry(&adapter->pdev->dev, entry,
+ dump))
+ entry->hdr.flags |= QLCNIC_DUMP_SKIP;
+ buf_offset += entry->hdr.cap_size;
+ entry_offset += entry->hdr.offset;
+ buffer = fw_dump->data + buf_offset;
+ }
+ if (dump_size != buf_offset) {
+ dev_info(&adapter->pdev->dev,
+ "Captured(%d) and expected size(%d) do not match\n",
+ buf_offset, dump_size);
+ goto error;
+ } else {
+ fw_dump->clr = 1;
+ snprintf(mesg, sizeof(mesg), "FW_DUMP=%s",
+ adapter->netdev->name);
+ dev_info(&adapter->pdev->dev, "Dump data, %d bytes captured\n",
+ fw_dump->size);
+ /* Send a udev event to notify availability of FW dump */
+ kobject_uevent_env(&adapter->pdev->dev.kobj, KOBJ_CHANGE, msg);
+ return 0;
+ }
+error:
+ vfree(fw_dump->data);
+ return -EINVAL;
+}
--
1.7.1
--
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