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Commit 1e99c497 authored by Michal Kalderon's avatar Michal Kalderon Committed by David S. Miller
Browse files

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



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: default avatarMichal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: default avatarAriel Elior <Ariel.Elior@cavium.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 471115ab

drivers/net/ethernet/qlogic/qed/qed_iwarp.c

+8 −0
Original line number Diff line number Diff line
@@ -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)) {

drivers/net/ethernet/qlogic/qed/qed_ll2.c

+1 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/qed/qed_ll2_if.h

+1 −0
Original line number Diff line number Diff line
@@ -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;