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qed: iWARP - Add check for errors on a SYN packet

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A SYN packet which arrives with errors from FW should be dropped.
This required adding an additional field to the ll2
rx completion data.

Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michal Kalderon 2017-09-24 12:09:45 +03:00 committed by David S. Miller
parent 471115ab98
commit 1e99c49701
3 changed files with 10 additions and 0 deletions
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8
drivers/net/ethernet/qlogic/qed/qed_iwarp.c
View File

@ -1733,6 +1733,14 @@ qed_iwarp_ll2_comp_syn_pkt(void *cxt, struct qed_ll2_comp_rx_data *data)
memset(&cm_info, 0, sizeof(cm_info));
ll2_syn_handle = p_hwfn->p_rdma_info->iwarp.ll2_syn_handle;
/* Check if packet was received with errors... */
if (data->err_flags) {
DP_NOTICE(p_hwfn, "Error received on SYN packet: 0x%x\n",
data->err_flags);
goto err;
}
if (GET_FIELD(data->parse_flags,
PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED) &&
GET_FIELD(data->parse_flags, PARSING_AND_ERR_FLAGS_L4CHKSMERROR)) {

1
drivers/net/ethernet/qlogic/qed/qed_ll2.c
View File

@ -413,6 +413,7 @@ static void qed_ll2_rxq_parse_reg(struct qed_hwfn *p_hwfn,
struct qed_ll2_comp_rx_data *data)
{
data->parse_flags = le16_to_cpu(p_cqe->rx_cqe_fp.parse_flags.flags);
data->err_flags = le16_to_cpu(p_cqe->rx_cqe_fp.err_flags.flags);
data->length.packet_length =
le16_to_cpu(p_cqe->rx_cqe_fp.packet_length);
data->vlan = le16_to_cpu(p_cqe->rx_cqe_fp.vlan);

1
include/linux/qed/qed_ll2_if.h
View File

@ -101,6 +101,7 @@ struct qed_ll2_comp_rx_data {
void *cookie;
dma_addr_t rx_buf_addr;
u16 parse_flags;
u16 err_flags;
u16 vlan;
bool b_last_packet;
u8 connection_handle;