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cxgb4: Add a debugfs entry to dump CIM MA logic analyzer logs

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Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2015-06-09 18:27:50 +05:30 committed by David S. Miller
parent 9d92dafee9
commit 26fae93fda
5 changed files with 84 additions and 0 deletions
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1
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
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@ -1337,6 +1337,7 @@ int t4_cim_read(struct adapter *adap, unsigned int addr, unsigned int n,
int t4_cim_write(struct adapter *adap, unsigned int addr, unsigned int n,
const unsigned int *valp);
int t4_cim_read_la(struct adapter *adap, u32 *la_buf, unsigned int *wrptr);
void t4_cim_read_ma_la(struct adapter *adap, u32 *ma_req, u32 *ma_rsp);
void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres);
const char *t4_get_port_type_description(enum fw_port_type port_type);
void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p);

47
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
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@ -182,6 +182,52 @@ static const struct file_operations cim_la_fops = {
.release = seq_release_private
};
static int cim_ma_la_show(struct seq_file *seq, void *v, int idx)
{
const u32 *p = v;
if (v == SEQ_START_TOKEN) {
seq_puts(seq, "\n");
} else if (idx < CIM_MALA_SIZE) {
seq_printf(seq, "%02x%08x%08x%08x%08x\n",
p[4], p[3], p[2], p[1], p[0]);
} else {
if (idx == CIM_MALA_SIZE)
seq_puts(seq,
"\nCnt ID Tag UE Data RDY VLD\n");
seq_printf(seq, "%3u %2u %x %u %08x%08x %u %u\n",
(p[2] >> 10) & 0xff, (p[2] >> 7) & 7,
(p[2] >> 3) & 0xf, (p[2] >> 2) & 1,
(p[1] >> 2) | ((p[2] & 3) << 30),
(p[0] >> 2) | ((p[1] & 3) << 30), (p[0] >> 1) & 1,
p[0] & 1);
}
return 0;
}
static int cim_ma_la_open(struct inode *inode, struct file *file)
{
struct seq_tab *p;
struct adapter *adap = inode->i_private;
p = seq_open_tab(file, 2 * CIM_MALA_SIZE, 5 * sizeof(u32), 1,
cim_ma_la_show);
if (!p)
return -ENOMEM;
t4_cim_read_ma_la(adap, (u32 *)p->data,
(u32 *)p->data + 5 * CIM_MALA_SIZE);
return 0;
}
static const struct file_operations cim_ma_la_fops = {
.owner = THIS_MODULE,
.open = cim_ma_la_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private
};
static int cim_qcfg_show(struct seq_file *seq, void *v)
{
static const char * const qname[] = {
@ -2128,6 +2174,7 @@ int t4_setup_debugfs(struct adapter *adap)
static struct t4_debugfs_entry t4_debugfs_files[] = {
{ "cim_la", &cim_la_fops, S_IRUSR, 0 },
{ "cim_ma_la", &cim_ma_la_fops, S_IRUSR, 0 },
{ "cim_qcfg", &cim_qcfg_fops, S_IRUSR, 0 },
{ "clk", &clk_debugfs_fops, S_IRUSR, 0 },
{ "devlog", &devlog_fops, S_IRUSR, 0 },

21
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
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@ -2586,6 +2586,27 @@ int t4_fwcache(struct adapter *adap, enum fw_params_param_dev_fwcache op)
return t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), NULL);
}
void t4_cim_read_ma_la(struct adapter *adap, u32 *ma_req, u32 *ma_rsp)
{
u32 cfg;
int i, j, idx;
cfg = t4_read_reg(adap, CIM_DEBUGCFG_A);
if (cfg & LADBGEN_F)
t4_write_reg(adap, CIM_DEBUGCFG_A, cfg ^ LADBGEN_F);
for (i = 0; i < CIM_MALA_SIZE; i++) {
for (j = 0; j < 5; j++) {
idx = 8 * i + j;
t4_write_reg(adap, CIM_DEBUGCFG_A, POLADBGRDPTR_V(idx) |
PILADBGRDPTR_V(idx));
*ma_req++ = t4_read_reg(adap, CIM_PO_LA_MADEBUGDATA_A);
*ma_rsp++ = t4_read_reg(adap, CIM_PI_LA_MADEBUGDATA_A);
}
}
t4_write_reg(adap, CIM_DEBUGCFG_A, cfg);
}
void t4_ulprx_read_la(struct adapter *adap, u32 *la_buf)
{
unsigned int i, j;

1
drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
View File

@ -59,6 +59,7 @@ enum {
CIM_NUM_OBQ = 6, /* # of CIM OBQs */
CIM_NUM_OBQ_T5 = 8, /* # of CIM OBQs for T5 adapter */
CIMLA_SIZE = 2048, /* # of 32-bit words in CIM LA */
CIM_MALA_SIZE = 64, /* # of 160-bit words in CIM MA LA */
CIM_IBQ_SIZE = 128, /* # of 128-bit words in a CIM IBQ */
CIM_OBQ_SIZE = 128, /* # of 128-bit words in a CIM OBQ */
TPLA_SIZE = 128, /* # of 64-bit words in TP LA */

14
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
View File

@ -2759,6 +2759,20 @@
#define CIM_IBQ_DBG_DATA_A 0x7b68
#define CIM_OBQ_DBG_DATA_A 0x7b6c
#define CIM_DEBUGCFG_A 0x7b70
#define POLADBGRDPTR_S 23
#define POLADBGRDPTR_V(x) ((x) << POLADBGRDPTR_S)
#define PILADBGRDPTR_S 14
#define PILADBGRDPTR_V(x) ((x) << PILADBGRDPTR_S)
#define LADBGEN_S 12
#define LADBGEN_V(x) ((x) << LADBGEN_S)
#define LADBGEN_F LADBGEN_V(1U)
#define CIM_PO_LA_MADEBUGDATA_A 0x7b80
#define CIM_PI_LA_MADEBUGDATA_A 0x7b84
#define UPDBGLARDEN_S 1
#define UPDBGLARDEN_V(x) ((x) << UPDBGLARDEN_S)