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cxgb4: Add support for ULP RX logic analyzer output in debugfs

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Dump Upper Layer Protocol RX module command trace

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2015-02-06 19:32:53 +05:30 committed by David S. Miller
parent 2d277b3b44
commit 797ff0f573
5 changed files with 58 additions and 0 deletions
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2
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
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@ -1181,6 +1181,8 @@ void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
const unsigned short *alpha, const unsigned short *beta);
void t4_ulprx_read_la(struct adapter *adap, u32 *la_buf);
void t4_mk_filtdelwr(unsigned int ftid, struct fw_filter_wr *wr, int qid);
void t4_wol_magic_enable(struct adapter *adap, unsigned int port,

36
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
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@ -562,6 +562,41 @@ static const struct file_operations tp_la_fops = {
.write = tp_la_write
};
static int ulprx_la_show(struct seq_file *seq, void *v, int idx)
{
const u32 *p = v;
if (v == SEQ_START_TOKEN)
seq_puts(seq, " Pcmd Type Message"
" Data\n");
else
seq_printf(seq, "%08x%08x %4x %08x %08x%08x%08x%08x\n",
p[1], p[0], p[2], p[3], p[7], p[6], p[5], p[4]);
return 0;
}
static int ulprx_la_open(struct inode *inode, struct file *file)
{
struct seq_tab *p;
struct adapter *adap = inode->i_private;
p = seq_open_tab(file, ULPRX_LA_SIZE, 8 * sizeof(u32), 1,
ulprx_la_show);
if (!p)
return -ENOMEM;
t4_ulprx_read_la(adap, (u32 *)p->data);
return 0;
}
static const struct file_operations ulprx_la_fops = {
.owner = THIS_MODULE,
.open = ulprx_la_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private
};
/* Show the PM memory stats. These stats include:
*
* TX:
@ -1867,6 +1902,7 @@ int t4_setup_debugfs(struct adapter *adap)
{ "obq_sge", &cim_obq_fops, S_IRUSR, 4 },
{ "obq_ncsi", &cim_obq_fops, S_IRUSR, 5 },
{ "tp_la", &tp_la_fops, S_IRUSR, 0 },
{ "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 },
{ "sensors", &sensors_debugfs_fops, S_IRUSR, 0 },
{ "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 },
#if IS_ENABLED(CONFIG_IPV6)

15
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
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@ -1263,6 +1263,21 @@ 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_ulprx_read_la(struct adapter *adap, u32 *la_buf)
{
unsigned int i, j;
for (i = 0; i < 8; i++) {
u32 *p = la_buf + i;
t4_write_reg(adap, ULP_RX_LA_CTL_A, i);
j = t4_read_reg(adap, ULP_RX_LA_WRPTR_A);
t4_write_reg(adap, ULP_RX_LA_RDPTR_A, j);
for (j = 0; j < ULPRX_LA_SIZE; j++, p += 8)
*p = t4_read_reg(adap, ULP_RX_LA_RDDATA_A);
}
}
#define ADVERT_MASK (FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G |\
FW_PORT_CAP_SPEED_10G | FW_PORT_CAP_SPEED_40G | \
FW_PORT_CAP_ANEG)

1
drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
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@ -64,6 +64,7 @@ enum {
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 */
ULPRX_LA_SIZE = 512, /* # of 256-bit words in ULP_RX LA */
};
enum {

4
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
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@ -2270,6 +2270,10 @@
#define ULP_RX_INT_CAUSE_A 0x19158
#define ULP_RX_ISCSI_TAGMASK_A 0x19164
#define ULP_RX_ISCSI_PSZ_A 0x19168
#define ULP_RX_LA_CTL_A 0x1923c
#define ULP_RX_LA_RDPTR_A 0x19240
#define ULP_RX_LA_RDDATA_A 0x19244
#define ULP_RX_LA_WRPTR_A 0x19248
#define HPZ3_S 24
#define HPZ3_V(x) ((x) << HPZ3_S)