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authorHariprasad Shenai <hariprasad@chelsio.com>2015-02-06 17:02:53 +0300
committerDavid S. Miller <davem@davemloft.net>2015-02-08 09:52:39 +0300
commit797ff0f573184778771b6d1186eca72f7e3adb4d (patch)
treef6d52ac12953de1ed7c448592240e1cf6df191fc /drivers/net/ethernet
parent2d277b3b44ede5c1812f5e49d2c8bdb7869f1661 (diff)
downloadlinux-797ff0f573184778771b6d1186eca72f7e3adb4d.tar.xz
cxgb4: Add support for ULP RX logic analyzer output in debugfs
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>
Diffstat (limited to 'drivers/net/ethernet')
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h2
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c36
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.c15
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.h1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_regs.h4
5 files changed, 58 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index d827bb65103e..6e18b42cafb3 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -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,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 1304fe045e7c..5a462730bdbe 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -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)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index e82c0ba66d55..9938f2aa5ef7 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -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)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
index f0b98d7d74da..380b15c0417a 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
@@ -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 {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 15d0eccfa6ec..91e0ea1954f0 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -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)