diff options
Diffstat (limited to 'hw/net/fsl_etsec/rings.c')
| -rw-r--r-- | hw/net/fsl_etsec/rings.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/hw/net/fsl_etsec/rings.c b/hw/net/fsl_etsec/rings.c index 628648a9c3..121415abfe 100644 --- a/hw/net/fsl_etsec/rings.c +++ b/hw/net/fsl_etsec/rings.c @@ -183,13 +183,11 @@ static void process_tx_fcb(eTSEC *etsec) uint8_t *l3_header = etsec->tx_buffer + 8 + l3_header_offset; /* L4 header */ uint8_t *l4_header = l3_header + l4_header_offset; + int csum = 0; /* if packet is IP4 and IP checksum is requested */ if (flags & FCB_TX_IP && flags & FCB_TX_CIP) { - /* do IP4 checksum (TODO This function does TCP/UDP checksum - * but not sure if it also does IP4 checksum.) */ - net_checksum_calculate(etsec->tx_buffer + 8, - etsec->tx_buffer_len - 8); + csum |= CSUM_IP; } /* TODO Check the correct usage of the PHCS field of the FCB in case the NPH * flag is on */ @@ -201,9 +199,7 @@ static void process_tx_fcb(eTSEC *etsec) /* if checksum is requested */ if (flags & FCB_TX_CTU) { /* do UDP checksum */ - - net_checksum_calculate(etsec->tx_buffer + 8, - etsec->tx_buffer_len - 8); + csum |= CSUM_UDP; } else { /* set checksum field to 0 */ l4_header[6] = 0; @@ -211,10 +207,14 @@ static void process_tx_fcb(eTSEC *etsec) } } else if (flags & FCB_TX_CTU) { /* if TCP and checksum is requested */ /* do TCP checksum */ - net_checksum_calculate(etsec->tx_buffer + 8, - etsec->tx_buffer_len - 8); + csum |= CSUM_TCP; } } + + if (csum) { + net_checksum_calculate(etsec->tx_buffer + 8, + etsec->tx_buffer_len - 8, csum); + } } static void process_tx_bd(eTSEC *etsec, |