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Software for White Rabbit PTP Core
Commit 5500bfaa authored by Alessandro Rubini's avatar Alessandro Rubini
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pfilter: use R_TMP, not R12 or R20, for temporary storage 

Uses of R20 and R12 are temporaries, and very local. Thus,
we can reuse R14, already blessed R_TMP.
Signed-off-by: Alessandro Rubini's avatarAlessandro Rubini <rubini@gnudd.com>
parent 8bfd46c2
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Showing with 4 additions and 4 deletions
dev/ep_pfilter.c
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......@@ -302,9 +302,9 @@ void pfilter_init_default()
pfilter_logic3(R_CLASS(7), FRAME_FOR_CPU, OR, FRAME_PORT_ETHERBONE, NOT, R_ZERO); /* class 7: Rest => NIC Core */
#else
pfilter_logic3(R_20, FRAME_IP_OK, AND, FRAME_UDP, OR, FRAME_FOR_CPU); /* r16 = Something we accept */
pfilter_logic3(R_TMP, FRAME_IP_OK, AND, FRAME_UDP, OR, FRAME_FOR_CPU); /* Something we accept */
pfilter_logic3(R_DROP, R_20, OR, FRAME_TYPE_STREAMER, NOT, R_ZERO); /* None match? drop */
pfilter_logic3(R_DROP, R_TMP, OR, FRAME_TYPE_STREAMER, NOT, R_ZERO); /* None match? drop */
pfilter_logic2(R_CLASS(7), FRAME_IP_OK, AND, FRAME_UDP); /* class 7: UDP/IP(unicast|broadcast) => external fabric */
pfilter_logic2(R_CLASS(6), FRAME_BROADCAST, AND, FRAME_TYPE_STREAMER); /* class 6: streamer broadcasts => external fabric */
......@@ -315,9 +315,9 @@ void pfilter_init_default()
#else
pfilter_logic3(FRAME_IP_UNI, FRAME_OUR_MAC, OR, FRAME_PTP_MCAST, AND, FRAME_TYPE_PTP2); /* r10 = PTP (multicast or unicast) */
pfilter_logic2(FRAME_IP_OK, FRAME_BROADCAST, AND, FRAME_TYPE_STREAMER); /* r11 = streamer broadcast */
pfilter_logic3(R_12, FRAME_IP_UNI, OR, FRAME_IP_OK, NOT, R_ZERO); /* r12 = all non-PTP and non-streamer traffic */
pfilter_logic3(R_TMP, FRAME_IP_UNI, OR, FRAME_IP_OK, NOT, R_ZERO); /* all non-PTP and non-streamer traffic */
pfilter_logic2(R_CLASS(7), R_12, MOV, R_ZERO); /* class 7: all non PTP and non-streamer
pfilter_logic2(R_CLASS(7), R_TMP, MOV, R_ZERO); /* class 7: all non PTP and non-streamer
traffic => external fabric */
pfilter_logic2(R_CLASS(6), FRAME_IP_OK, MOV, R_ZERO); /* class 6: streamer broadcasts =>
external fabric */
......
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