C++ FW_LEN16函数代码示例

/**
 *	t4vf_port_init - initialize port hardware/software state
 *	@adapter: the adapter
 *	@pidx: the adapter port index
 */
int t4vf_port_init(struct adapter *adapter, int pidx)
{
	struct port_info *pi = adap2pinfo(adapter, pidx);
	struct fw_vi_cmd vi_cmd, vi_rpl;
	struct fw_port_cmd port_cmd, port_rpl;
	int v;
	u32 word;

	/*
	 * Execute a VI Read command to get our Virtual Interface information
	 * like MAC address, etc.
	 */
	memset(&vi_cmd, 0, sizeof(vi_cmd));
	vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
				       FW_CMD_REQUEST |
				       FW_CMD_READ);
	vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
	vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(pi->viid));
	v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
	if (v)
		return v;

	BUG_ON(pi->port_id != FW_VI_CMD_PORTID_GET(vi_rpl.portid_pkd));
	pi->rss_size = FW_VI_CMD_RSSSIZE_GET(be16_to_cpu(vi_rpl.rsssize_pkd));
	t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);

	/*
	 * If we don't have read access to our port information, we're done
	 * now.  Otherwise, execute a PORT Read command to get it ...
	 */
	if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
		return 0;

	memset(&port_cmd, 0, sizeof(port_cmd));
	port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP(FW_PORT_CMD) |
					    FW_CMD_REQUEST |
					    FW_CMD_READ |
					    FW_PORT_CMD_PORTID(pi->port_id));
	port_cmd.action_to_len16 =
		cpu_to_be32(FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
			    FW_LEN16(port_cmd));
	v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
	if (v)
		return v;

	v = 0;
	word = be16_to_cpu(port_rpl.u.info.pcap);
	if (word & FW_PORT_CAP_SPEED_100M)
		v |= SUPPORTED_100baseT_Full;
	if (word & FW_PORT_CAP_SPEED_1G)
		v |= SUPPORTED_1000baseT_Full;
	if (word & FW_PORT_CAP_SPEED_10G)
		v |= SUPPORTED_10000baseT_Full;
	if (word & FW_PORT_CAP_ANEG)
		v |= SUPPORTED_Autoneg;
	init_link_config(&pi->link_cfg, v);

	return 0;
}

/**
 *	t4vf_set_rxmode - set Rx properties of a virtual interface
 *	@adapter: the adapter
 *	@viid: the VI id
 *	@mtu: the new MTU or -1 for no change
 *	@promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
 *	@all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
 *	@bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
 *	@vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
 *		-1 no change
 *
 *	Sets Rx properties of a virtual interface.
 */
int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
		    int mtu, int promisc, int all_multi, int bcast, int vlanex,
		    bool sleep_ok)
{
	struct fw_vi_rxmode_cmd cmd;

	/* convert to FW values */
	if (mtu < 0)
		mtu = FW_VI_RXMODE_CMD_MTU_MASK;
	if (promisc < 0)
		promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK;
	if (all_multi < 0)
		all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK;
	if (bcast < 0)
		bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK;
	if (vlanex < 0)
		vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_RXMODE_CMD) |
				     FW_CMD_REQUEST |
				     FW_CMD_WRITE |
				     FW_VI_RXMODE_CMD_VIID(viid));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	cmd.mtu_to_vlanexen =
		cpu_to_be32(FW_VI_RXMODE_CMD_MTU(mtu) |
			    FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
			    FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
			    FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
			    FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
	return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
}

/**
 *      t4vf_fw_reset - issue a reset to FW
 *      @adapter: the adapter
 *
 *	Issues a reset command to FW.  For a Physical Function this would
 *	result in the Firmware reseting all of its state.  For a Virtual
 *	Function this just resets the state associated with the VF.
 */
int t4vf_fw_reset(struct adapter *adapter)
{
	struct fw_reset_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RESET_CMD) |
				      FW_CMD_WRITE);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_eth_eq_free - free an Ethernet egress queue
 *	@adapter: the adapter
 *	@eqid: egress queue ID
 *
 *	Frees an Ethernet egress queue.
 */
int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
{
	struct fw_eq_eth_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_EQ_ETH_CMD) |
				    FW_CMD_REQUEST |
				    FW_CMD_EXEC);
	cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE |
					 FW_LEN16(cmd));
	cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID(eqid));
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_identify_port - identify a VI's port by blinking its LED
 *	@adapter: the adapter
 *	@viid: the Virtual Interface ID
 *	@nblinks: how many times to blink LED at 2.5 Hz
 *
 *	Identifies a VI's port by blinking its LED.
 */
int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
		       unsigned int nblinks)
{
	struct fw_vi_enable_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
				     FW_CMD_REQUEST |
				     FW_CMD_EXEC |
				     FW_VI_ENABLE_CMD_VIID(viid));
	cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED |
				       FW_LEN16(cmd));
	cmd.blinkdur = cpu_to_be16(nblinks);
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_enable_vi - enable/disable a virtual interface
 *	@adapter: the adapter
 *	@viid: the Virtual Interface ID
 *	@rx_en: 1=enable Rx, 0=disable Rx
 *	@tx_en: 1=enable Tx, 0=disable Tx
 *
 *	Enables/disables a virtual interface.
 */
int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
		   bool rx_en, bool tx_en)
{
	struct fw_vi_enable_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
				     FW_CMD_REQUEST |
				     FW_CMD_EXEC |
				     FW_VI_ENABLE_CMD_VIID(viid));
	cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN(rx_en) |
				       FW_VI_ENABLE_CMD_EEN(tx_en) |
				       FW_LEN16(cmd));
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_free_vi -- free a virtual interface
 *	@adapter: the adapter
 *	@viid: the virtual interface identifier
 *
 *	Free a previously allocated Virtual Interface.  Return an error on
 *	failure.
 */
int t4vf_free_vi(struct adapter *adapter, int viid)
{
	struct fw_vi_cmd cmd;

	/*
	 * Execute a VI command to free the Virtual Interface.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
				    FW_CMD_REQUEST |
				    FW_CMD_EXEC);
	cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
					 FW_VI_CMD_FREE);
	cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(viid));
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_get_vfres - retrieve VF resource limits
 *	@adapter: the adapter
 *
 *	Retrieves configured resource limits and capabilities for a virtual
 *	function.  The results are stored in @adapter->vfres.
 */
int t4vf_get_vfres(struct adapter *adapter)
{
	struct vf_resources *vfres = &adapter->params.vfres;
	struct fw_pfvf_cmd cmd, rpl;
	int v;
	u32 word;

	/*
	 * Execute PFVF Read command to get VF resource limits; bail out early
	 * with error on command failure.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PFVF_CMD) |
				    FW_CMD_REQUEST |
				    FW_CMD_READ);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
	if (v)
		return v;

	/*
	 * Extract VF resource limits and return success.
	 */
	word = be32_to_cpu(rpl.niqflint_niq);
	vfres->niqflint = FW_PFVF_CMD_NIQFLINT_GET(word);
	vfres->niq = FW_PFVF_CMD_NIQ_GET(word);

	word = be32_to_cpu(rpl.type_to_neq);
	vfres->neq = FW_PFVF_CMD_NEQ_GET(word);
	vfres->pmask = FW_PFVF_CMD_PMASK_GET(word);

	word = be32_to_cpu(rpl.tc_to_nexactf);
	vfres->tc = FW_PFVF_CMD_TC_GET(word);
	vfres->nvi = FW_PFVF_CMD_NVI_GET(word);
	vfres->nexactf = FW_PFVF_CMD_NEXACTF_GET(word);

	word = be32_to_cpu(rpl.r_caps_to_nethctrl);
	vfres->r_caps = FW_PFVF_CMD_R_CAPS_GET(word);
	vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_GET(word);
	vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_GET(word);

	return 0;
}

/**
 *	t4vf_iq_free - free an ingress queue and its free lists
 *	@adapter: the adapter
 *	@iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
 *	@iqid: ingress queue ID
 *	@fl0id: FL0 queue ID or 0xffff if no attached FL0
 *	@fl1id: FL1 queue ID or 0xffff if no attached FL1
 *
 *	Frees an ingress queue and its associated free lists, if any.
 */
int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
		 unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
{
	struct fw_iq_cmd cmd;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_IQ_CMD) |
				    FW_CMD_REQUEST |
				    FW_CMD_EXEC);
	cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE |
					 FW_LEN16(cmd));
	cmd.type_to_iqandstindex =
		cpu_to_be32(FW_IQ_CMD_TYPE(iqtype));

	cmd.iqid = cpu_to_be16(iqid);
	cmd.fl0id = cpu_to_be16(fl0id);
	cmd.fl1id = cpu_to_be16(fl1id);
	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
}

/**
 *	t4vf_read_rss_vi_config - read a VI's RSS configuration
 *	@adapter: the adapter
 *	@viid: Virtual Interface ID
 *	@config: pointer to host-native VI RSS Configuration buffer
 *
 *	Reads the Virtual Interface's RSS configuration information and
 *	translates it into CPU-native format.
 */
int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
			    union rss_vi_config *config)
{
	struct fw_rss_vi_config_cmd cmd, rpl;
	int v;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
				     FW_CMD_REQUEST |
				     FW_CMD_READ |
				     FW_RSS_VI_CONFIG_CMD_VIID(viid));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
	if (v)
		return v;

	switch (adapter->params.rss.mode) {
	case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
		u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);

		config->basicvirtual.ip6fourtupen =
			((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) != 0);
		config->basicvirtual.ip6twotupen =
			((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) != 0);
		config->basicvirtual.ip4fourtupen =
			((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) != 0);
		config->basicvirtual.ip4twotupen =
			((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) != 0);
		config->basicvirtual.udpen =
			((word & FW_RSS_VI_CONFIG_CMD_UDPEN) != 0);
		config->basicvirtual.defaultq =
			FW_RSS_VI_CONFIG_CMD_DEFAULTQ_GET(word);
		break;
	}

	default:
		return -EINVAL;
	}

	return 0;
}

/**
 *	t4vf_alloc_vi - allocate a virtual interface on a port
 *	@adapter: the adapter
 *	@port_id: physical port associated with the VI
 *
 *	Allocate a new Virtual Interface and bind it to the indicated
 *	physical port.  Return the new Virtual Interface Identifier on
 *	success, or a [negative] error number on failure.
 */
int t4vf_alloc_vi(struct adapter *adapter, int port_id)
{
	struct fw_vi_cmd cmd, rpl;
	int v;

	/*
	 * Execute a VI command to allocate Virtual Interface and return its
	 * VIID.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
				    FW_CMD_REQUEST |
				    FW_CMD_WRITE |
				    FW_CMD_EXEC);
	cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
					 FW_VI_CMD_ALLOC);
	cmd.portid_pkd = FW_VI_CMD_PORTID(port_id);
	v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
	if (v)
		return v;

	return FW_VI_CMD_VIID_GET(be16_to_cpu(rpl.type_viid));
}

/**
 *	t4vf_write_rss_vi_config - write a VI's RSS configuration
 *	@adapter: the adapter
 *	@viid: Virtual Interface ID
 *	@config: pointer to host-native VI RSS Configuration buffer
 *
 *	Write the Virtual Interface's RSS configuration information
 *	(translating it into firmware-native format before writing).
 */
int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
			     union rss_vi_config *config)
{
	struct fw_rss_vi_config_cmd cmd, rpl;

	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP_V(FW_RSS_VI_CONFIG_CMD) |
				     FW_CMD_REQUEST_F |
				     FW_CMD_WRITE_F |
				     FW_RSS_VI_CONFIG_CMD_VIID(viid));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	switch (adapter->params.rss.mode) {
	case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
		u32 word = 0;

		if (config->basicvirtual.ip6fourtupen)
			word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN_F;
		if (config->basicvirtual.ip6twotupen)
			word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN_F;
		if (config->basicvirtual.ip4fourtupen)
			word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN_F;
		if (config->basicvirtual.ip4twotupen)
			word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN_F;
		if (config->basicvirtual.udpen)
			word |= FW_RSS_VI_CONFIG_CMD_UDPEN_F;
		word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ_V(
				config->basicvirtual.defaultq);
		cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
		break;
	}

	default:
		return -EINVAL;
	}

	return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
}

/**
 *	t4vf_config_rss_range - configure a portion of the RSS mapping table
 *	@adapter: the adapter
 *	@viid: Virtual Interface of RSS Table Slice
 *	@start: starting entry in the table to write
 *	@n: how many table entries to write
 *	@rspq: values for the "Response Queue" (Ingress Queue) lookup table
 *	@nrspq: number of values in @rspq
 *
 *	Programs the selected part of the VI's RSS mapping table with the
 *	provided values.  If @nrspq < @n the supplied values are used repeatedly
 *	until the full table range is populated.
 *
 *	The caller must ensure the values in @rspq are in the range 0..1023.
 */
int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
			  int start, int n, const u16 *rspq, int nrspq)
{
	const u16 *rsp = rspq;
	const u16 *rsp_end = rspq+nrspq;
	struct fw_rss_ind_tbl_cmd cmd;

	/*
	 * Initialize firmware command template to write the RSS table.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
				     FW_CMD_REQUEST |
				     FW_CMD_WRITE |
				     FW_RSS_IND_TBL_CMD_VIID(viid));
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));

	/*
	 * Each firmware RSS command can accommodate up to 32 RSS Ingress
	 * Queue Identifiers.  These Ingress Queue IDs are packed three to
	 * a 32-bit word as 10-bit values with the upper remaining 2 bits
	 * reserved.
	 */
	while (n > 0) {
		__be32 *qp = &cmd.iq0_to_iq2;
		int nq = min(n, 32);
		int ret;

		/*
		 * Set up the firmware RSS command header to send the next
		 * "nq" Ingress Queue IDs to the firmware.
		 */
		cmd.niqid = cpu_to_be16(nq);
		cmd.startidx = cpu_to_be16(start);

		/*
		 * "nq" more done for the start of the next loop.
		 */
		start += nq;
		n -= nq;

		/*
		 * While there are still Ingress Queue IDs to stuff into the
		 * current firmware RSS command, retrieve them from the
		 * Ingress Queue ID array and insert them into the command.
		 */
		while (nq > 0) {
			/*
			 * Grab up to the next 3 Ingress Queue IDs (wrapping
			 * around the Ingress Queue ID array if necessary) and
			 * insert them into the firmware RSS command at the
			 * current 3-tuple position within the commad.
			 */
			u16 qbuf[3];
			u16 *qbp = qbuf;
			int nqbuf = min(3, nq);

			nq -= nqbuf;
			qbuf[0] = qbuf[1] = qbuf[2] = 0;
			while (nqbuf) {
				nqbuf--;
				*qbp++ = *rsp++;
				if (rsp >= rsp_end)
					rsp = rspq;
			}
			*qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
					    FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
					    FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
		}

		/*
		 * Send this portion of the RRS table update to the firmware;
		 * bail out on any errors.
		 */
		ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
		if (ret)
			return ret;
	}
	return 0;
}

/**
 *	t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
 *	@adapter: the adapter
 *
 *	Retrieves global RSS mode and parameters with which we have to live
 *	and stores them in the @adapter's RSS parameters.
 */
int t4vf_get_rss_glb_config(struct adapter *adapter)
{
	struct rss_params *rss = &adapter->params.rss;
	struct fw_rss_glb_config_cmd cmd, rpl;
	int v;

	/*
	 * Execute an RSS Global Configuration read command to retrieve
	 * our RSS configuration.
	 */
	memset(&cmd, 0, sizeof(cmd));
	cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
				      FW_CMD_REQUEST |
				      FW_CMD_READ);
	cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
	v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
	if (v)
		return v;

	/*
	 * Transate the big-endian RSS Global Configuration into our
	 * cpu-endian format based on the RSS mode.  We also do first level
	 * filtering at this point to weed out modes which don't support
	 * VF Drivers ...
	 */
	rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_GET(
			be32_to_cpu(rpl.u.manual.mode_pkd));
	switch (rss->mode) {
	case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
		u32 word = be32_to_cpu(
				rpl.u.basicvirtual.synmapen_to_hashtoeplitz);

		rss->u.basicvirtual.synmapen =
			((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) != 0);
		rss->u.basicvirtual.syn4tupenipv6 =
			((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) != 0);
		rss->u.basicvirtual.syn2tupenipv6 =
			((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) != 0);
		rss->u.basicvirtual.syn4tupenipv4 =
			((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) != 0);
		rss->u.basicvirtual.syn2tupenipv4 =
			((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) != 0);

		rss->u.basicvirtual.ofdmapen =
			((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) != 0);

		rss->u.basicvirtual.tnlmapen =
			((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) != 0);
		rss->u.basicvirtual.tnlalllookup =
			((word  & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) != 0);

		rss->u.basicvirtual.hashtoeplitz =
			((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) != 0);

		/* we need at least Tunnel Map Enable to be set */
		if (!rss->u.basicvirtual.tnlmapen)
			return -EINVAL;
		break;
	}

	default:
		/* all unknown/unsupported RSS modes result in an error */
		return -EINVAL;
	}

	return 0;
}