diff options
author | Hariprasad Shenai <hariprasad@chelsio.com> | 2015-02-06 09:02:55 -0500 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2015-02-08 01:52:39 -0500 |
commit | bad4379263d2c2442f5273adc856dd67e4274f3f (patch) | |
tree | eaee8c8a3ec8c75dce02aac7888b519aed4bd12e /drivers/net/ethernet | |
parent | bf7c781d576823e5d71f40585aeeac430a1845c8 (diff) |
cxgb4: Add support in debugfs to dump the congestion control table
Dump Transport Processor modules congestion control configuration
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.h | 1 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 28 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 21 | ||||
-rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 3 |
4 files changed, 53 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 6e18b42cafb3..0fe3a52fb0b8 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | |||
@@ -1173,6 +1173,7 @@ void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres); | |||
1173 | const char *t4_get_port_type_description(enum fw_port_type port_type); | 1173 | const char *t4_get_port_type_description(enum fw_port_type port_type); |
1174 | void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p); | 1174 | void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p); |
1175 | void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log); | 1175 | void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log); |
1176 | void t4_read_cong_tbl(struct adapter *adap, u16 incr[NMTUS][NCCTRL_WIN]); | ||
1176 | void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr, | 1177 | void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr, |
1177 | unsigned int mask, unsigned int val); | 1178 | unsigned int mask, unsigned int val); |
1178 | void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr); | 1179 | void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr); |
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c index 83e29320a945..a1029eecef02 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | |||
@@ -663,6 +663,33 @@ static const struct file_operations pm_stats_debugfs_fops = { | |||
663 | .write = pm_stats_clear | 663 | .write = pm_stats_clear |
664 | }; | 664 | }; |
665 | 665 | ||
666 | static int cctrl_tbl_show(struct seq_file *seq, void *v) | ||
667 | { | ||
668 | static const char * const dec_fac[] = { | ||
669 | "0.5", "0.5625", "0.625", "0.6875", "0.75", "0.8125", "0.875", | ||
670 | "0.9375" }; | ||
671 | |||
672 | int i; | ||
673 | u16 incr[NMTUS][NCCTRL_WIN]; | ||
674 | struct adapter *adap = seq->private; | ||
675 | |||
676 | t4_read_cong_tbl(adap, incr); | ||
677 | |||
678 | for (i = 0; i < NCCTRL_WIN; ++i) { | ||
679 | seq_printf(seq, "%2d: %4u %4u %4u %4u %4u %4u %4u %4u\n", i, | ||
680 | incr[0][i], incr[1][i], incr[2][i], incr[3][i], | ||
681 | incr[4][i], incr[5][i], incr[6][i], incr[7][i]); | ||
682 | seq_printf(seq, "%8u %4u %4u %4u %4u %4u %4u %4u %5u %s\n", | ||
683 | incr[8][i], incr[9][i], incr[10][i], incr[11][i], | ||
684 | incr[12][i], incr[13][i], incr[14][i], incr[15][i], | ||
685 | adap->params.a_wnd[i], | ||
686 | dec_fac[adap->params.b_wnd[i]]); | ||
687 | } | ||
688 | return 0; | ||
689 | } | ||
690 | |||
691 | DEFINE_SIMPLE_DEBUGFS_FILE(cctrl_tbl); | ||
692 | |||
666 | /* Format a value in a unit that differs from the value's native unit by the | 693 | /* Format a value in a unit that differs from the value's native unit by the |
667 | * given factor. | 694 | * given factor. |
668 | */ | 695 | */ |
@@ -1990,6 +2017,7 @@ int t4_setup_debugfs(struct adapter *adap) | |||
1990 | { "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 }, | 2017 | { "ulprx_la", &ulprx_la_fops, S_IRUSR, 0 }, |
1991 | { "sensors", &sensors_debugfs_fops, S_IRUSR, 0 }, | 2018 | { "sensors", &sensors_debugfs_fops, S_IRUSR, 0 }, |
1992 | { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 }, | 2019 | { "pm_stats", &pm_stats_debugfs_fops, S_IRUSR, 0 }, |
2020 | { "cctrl", &cctrl_tbl_debugfs_fops, S_IRUSR, 0 }, | ||
1993 | #if IS_ENABLED(CONFIG_IPV6) | 2021 | #if IS_ENABLED(CONFIG_IPV6) |
1994 | { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 }, | 2022 | { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 }, |
1995 | #endif | 2023 | #endif |
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 9938f2aa5ef7..2c13e8005319 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | |||
@@ -2419,6 +2419,27 @@ void t4_read_mtu_tbl(struct adapter *adap, u16 *mtus, u8 *mtu_log) | |||
2419 | } | 2419 | } |
2420 | 2420 | ||
2421 | /** | 2421 | /** |
2422 | * t4_read_cong_tbl - reads the congestion control table | ||
2423 | * @adap: the adapter | ||
2424 | * @incr: where to store the alpha values | ||
2425 | * | ||
2426 | * Reads the additive increments programmed into the HW congestion | ||
2427 | * control table. | ||
2428 | */ | ||
2429 | void t4_read_cong_tbl(struct adapter *adap, u16 incr[NMTUS][NCCTRL_WIN]) | ||
2430 | { | ||
2431 | unsigned int mtu, w; | ||
2432 | |||
2433 | for (mtu = 0; mtu < NMTUS; ++mtu) | ||
2434 | for (w = 0; w < NCCTRL_WIN; ++w) { | ||
2435 | t4_write_reg(adap, TP_CCTRL_TABLE_A, | ||
2436 | ROWINDEX_V(0xffff) | (mtu << 5) | w); | ||
2437 | incr[mtu][w] = (u16)t4_read_reg(adap, | ||
2438 | TP_CCTRL_TABLE_A) & 0x1fff; | ||
2439 | } | ||
2440 | } | ||
2441 | |||
2442 | /** | ||
2422 | * t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register | 2443 | * t4_tp_wr_bits_indirect - set/clear bits in an indirect TP register |
2423 | * @adap: the adapter | 2444 | * @adap: the adapter |
2424 | * @addr: the indirect TP register address | 2445 | * @addr: the indirect TP register address |
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index 3f18d5c5e7f0..231a725f6d5d 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | |||
@@ -1292,6 +1292,9 @@ | |||
1292 | #define KEEPALIVEMAXR2_V(x) ((x) << KEEPALIVEMAXR2_S) | 1292 | #define KEEPALIVEMAXR2_V(x) ((x) << KEEPALIVEMAXR2_S) |
1293 | #define KEEPALIVEMAXR2_G(x) (((x) >> KEEPALIVEMAXR2_S) & KEEPALIVEMAXR2_M) | 1293 | #define KEEPALIVEMAXR2_G(x) (((x) >> KEEPALIVEMAXR2_S) & KEEPALIVEMAXR2_M) |
1294 | 1294 | ||
1295 | #define ROWINDEX_S 16 | ||
1296 | #define ROWINDEX_V(x) ((x) << ROWINDEX_S) | ||
1297 | |||
1295 | #define TP_CCTRL_TABLE_A 0x7ddc | 1298 | #define TP_CCTRL_TABLE_A 0x7ddc |
1296 | #define TP_MTU_TABLE_A 0x7de4 | 1299 | #define TP_MTU_TABLE_A 0x7de4 |
1297 | 1300 | ||