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* Mon May 15 2006 Stuarth Hughes <stuarth@freescale.com> u
on behalf of Joseph Palazzo:
This patch provides user access for three additional TSEC parameters. These are:
fifo-tx-thr
fifo-tx-starve
fifo-tx-starve-shutoff
---
ethtool-copy.h | 15 +++++++++++++++
ethtool.c | 23 ++++++++++++++++++++---
2 files changed, 35 insertions(+), 3 deletions(-)
--- ethtool-2.6.35.orig/ethtool-copy.h
+++ ethtool-2.6.35/ethtool-copy.h
@@ -201,6 +201,21 @@ struct ethtool_coalesce {
* measured in seconds. Must not be zero.
*/
__u32 rate_sample_interval;
+ /* The main purpose of the threshold register is to trigger the unloading of FIFO data to the PHY. It
+ * represents the numerical SRAM entry (0-511 for 2-Kbyte FIFO) to trigger the threshold function.
+ * If the number of valid entries in the FIFO is equal to or greater than the threshold register,
+ * transmission can begin.
+ */
+ __u32 fifo_tx_thr;
+ /* The purpose of the starve register is to inform the system of extremely
+ * imminent underrun conditions.
+ */
+ __u32 fifo_tx_starve;
+ /* The starve shutoff register contains the watermark level to be used for
+ * exiting the starve state.
+ */
+ __u32 fifo_tx_starve_shutoff;
+
};
/* for configuring RX/TX ring parameters */
--- ethtool-2.6.35.orig/ethtool.c
+++ ethtool-2.6.35/ethtool.c
@@ -183,7 +183,10 @@ static struct option {
" [rx-frames-high N]\n"
" [tx-usecs-high N]\n"
" [tx-frames-high N]\n"
- " [sample-interval N]\n" },
+ " [fifo-tx-thr N] \n"
+ " [fifo-tx-starve N] \n"
+ " [fifo-tx-starve-shutoff N] \n"
+ " [sample-interval N]\n" },
{ "-g", "--show-ring", MODE_GRING, "Query RX/TX ring parameters" },
{ "-G", "--set-ring", MODE_SRING, "Set RX/TX ring parameters",
" [ rx N ]\n"
@@ -330,6 +333,9 @@ static s32 coal_rx_usec_high_wanted = -1
static s32 coal_rx_frames_high_wanted = -1;
static s32 coal_tx_usec_high_wanted = -1;
static s32 coal_tx_frames_high_wanted = -1;
+static int coal_fifo_tx_thr = -1;
+static int coal_fifo_tx_starve = -1;
+static int coal_fifo_tx_starve_shutoff = -1;
static int speed_wanted = -1;
static int duplex_wanted = -1;
@@ -477,6 +483,9 @@ static struct cmdline_info cmdline_coale
{ "rx-frames-high", CMDL_S32, &coal_rx_frames_high_wanted, &ecoal.rx_max_coalesced_frames_high },
{ "tx-usecs-high", CMDL_S32, &coal_tx_usec_high_wanted, &ecoal.tx_coalesce_usecs_high },
{ "tx-frames-high", CMDL_S32, &coal_tx_frames_high_wanted, &ecoal.tx_max_coalesced_frames_high },
+ { "fifo-tx-thr", CMDL_S32, &coal_fifo_tx_thr, &ecoal.fifo_tx_thr },
+ { "fifo-tx-starve", CMDL_S32, &coal_fifo_tx_starve, &ecoal.fifo_tx_starve },
+ { "fifo-tx-starve-shutoff", CMDL_S32, &coal_fifo_tx_starve_shutoff, &ecoal.fifo_tx_starve_shutoff },
};
static struct cmdline_info cmdline_ntuple[] = {
@@ -1702,6 +1711,10 @@ static int dump_coalesce(void)
"rx-frame-high: %u\n"
"tx-usecs-high: %u\n"
"tx-frame-high: %u\n"
+ "\n"
+ "fifo-tx-thr: %u\n"
+ "fifo-tx-starve: %u\n"
+ "fifo-tx-starve-shutoff: %u\n"
"\n",
ecoal.stats_block_coalesce_usecs,
ecoal.rate_sample_interval,
@@ -1726,9 +1739,13 @@ static int dump_coalesce(void)
ecoal.rx_coalesce_usecs_high,
ecoal.rx_max_coalesced_frames_high,
ecoal.tx_coalesce_usecs_high,
- ecoal.tx_max_coalesced_frames_high);
+ ecoal.tx_max_coalesced_frames_high,
- return 0;
+ ecoal.fifo_tx_thr,
+ ecoal.fifo_tx_starve,
+ ecoal.fifo_tx_starve_shutoff
+ );
+ return 0;
}
static int dump_offload(int rx, int tx, int sg, int tso, int ufo, int gso,
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