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Subject[PATCH v2 4/7] net: thunderx: add new messages for handle ndo_set_rx_mode callback
Date
From: Vadim Lomovtsev <Vadim.Lomovtsev@cavium.com>

The kernel calls ndo_set_rx_mode() callback supplying it will all necessary
info, such as device state flags, multicast mac addresses list and so on.
Since we have only 128 bits to communicate with PF we need to initiate
several requests to PF with small/short operation each based on input data.

So this commit implements following PF messages codes along with new
data structures for them:
NIC_MBOX_MSG_RESET_XCAST to flush all filters configured for this
particular network interface (VF)
NIC_MBOX_MSG_ADD_MCAST to add new MAC address to DMAC filter registers
for this particular network interface (VF)
NIC_MBOX_MSG_SET_XCAST to apply filtering configuration to filter control
register

Signed-off-by: Vadim Lomovtsev <Vadim.Lomovtsev@cavium.com>
---
drivers/net/ethernet/cavium/thunder/nic.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h
index 4cacce5d2b16..069289b4f968 100644
--- a/drivers/net/ethernet/cavium/thunder/nic.h
+++ b/drivers/net/ethernet/cavium/thunder/nic.h
@@ -403,6 +403,9 @@ struct nicvf {
#define NIC_MBOX_MSG_PTP_CFG 0x19 /* HW packet timestamp */
#define NIC_MBOX_MSG_CFG_DONE 0xF0 /* VF configuration done */
#define NIC_MBOX_MSG_SHUTDOWN 0xF1 /* VF is being shutdown */
+#define NIC_MBOX_MSG_RESET_XCAST 0xF2 /* Reset DCAM filtering mode */
+#define NIC_MBOX_MSG_ADD_MCAST 0xF3 /* Add MAC to DCAM filters */
+#define NIC_MBOX_MSG_SET_XCAST 0xF4 /* Set MCAST/BCAST RX mode */

struct nic_cfg_msg {
u8 msg;
@@ -556,6 +559,14 @@ struct set_ptp {
bool enable;
};

+struct xcast {
+ u8 msg;
+ union {
+ u8 mode;
+ u64 mac;
+ } data;
+};
+
/* 128 bit shared memory between PF and each VF */
union nic_mbx {
struct { u8 msg; } msg;
@@ -576,6 +587,7 @@ union nic_mbx {
struct reset_stat_cfg reset_stat;
struct pfc pfc;
struct set_ptp ptp;
+ struct xcast xcast;
};

#define NIC_NODE_ID_MASK 0x03
--
2.14.3
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