adamfeuer commented on a change in pull request #372: SAMA5 GMAC driver
improvements: prevent txtimeout from always firing and fix txbuffer leak during
high-volume sends
URL: https://github.com/apache/incubator-nuttx/pull/372#discussion_r383946147
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File path: arch/arm/src/sama5/sam_gmac.c
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@@ -1337,8 +1347,9 @@ static void sam_txdone(struct sam_gmac_s *priv)
up_invalidate_dcache((uintptr_t)txdesc,
(uintptr_t)txdesc + sizeof(struct gmac_txdesc_s));
- /* Is this TX descriptor still in use? */
+ // Is this TX descriptor done transmitting? (SAMA5D36 datasheet, p. 934)
+ // First TX descriptor in chain GMACTXD_STA_USED = 1
Review comment:
@Ouss4 will fix
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