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Commit ff33a6e2 authored by Suresh R's avatar Suresh R Committed by David S. Miller
Browse files

be2net: Add support for ethtool self test 



This patch adds support for ethtool selftest.

From: Suresh R <sureshr@serverengines.com>
Signed-off-by: default avatarAjit Khaparde <ajitk@serverengines.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 49d09007

drivers/net/benet/be_cmds.c

+93 −0
Original line number Diff line number Diff line
@@ -1478,3 +1478,96 @@ extern int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac, 
	spin_unlock_bh(&adapter->mcc_lock);

	return status;

}



int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,

		u32 loopback_type, u32 pkt_size, u32 num_pkts, u64 pattern)

{

	struct be_mcc_wrb *wrb;

	struct be_cmd_req_loopback_test *req;

	int status;



	spin_lock_bh(&adapter->mcc_lock);



	wrb = wrb_from_mccq(adapter);

	if (!wrb) {

		status = -EBUSY;

		goto err;

	}



	req = embedded_payload(wrb);



	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0,

				OPCODE_LOWLEVEL_LOOPBACK_TEST);



	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_LOWLEVEL,

			OPCODE_LOWLEVEL_LOOPBACK_TEST, sizeof(*req));



	req->pattern = cpu_to_le64(pattern);

	req->src_port = cpu_to_le32(port_num);

	req->dest_port = cpu_to_le32(port_num);

	req->pkt_size = cpu_to_le32(pkt_size);

	req->num_pkts = cpu_to_le32(num_pkts);

	req->loopback_type = cpu_to_le32(loopback_type);



	status = be_mcc_notify_wait(adapter);

	if (!status) {

		struct be_cmd_resp_loopback_test *resp = embedded_payload(wrb);

		status = le32_to_cpu(resp->status);

	}



err:

	spin_unlock_bh(&adapter->mcc_lock);

	return status;

}



int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern,

				u32 byte_cnt, struct be_dma_mem *cmd)

{

	struct be_mcc_wrb *wrb;

	struct be_cmd_req_ddrdma_test *req;

	struct be_sge *sge;

	int status;

	int i, j = 0;



	spin_lock_bh(&adapter->mcc_lock);



	wrb = wrb_from_mccq(adapter);

	if (!wrb) {

		status = -EBUSY;

		goto err;

	}

	req = cmd->va;

	sge = nonembedded_sgl(wrb);

	be_wrb_hdr_prepare(wrb, cmd->size, false, 1,

				OPCODE_LOWLEVEL_HOST_DDR_DMA);

	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_LOWLEVEL,

			OPCODE_LOWLEVEL_HOST_DDR_DMA, cmd->size);



	sge->pa_hi = cpu_to_le32(upper_32_bits(cmd->dma));

	sge->pa_lo = cpu_to_le32(cmd->dma & 0xFFFFFFFF);

	sge->len = cpu_to_le32(cmd->size);



	req->pattern = cpu_to_le64(pattern);

	req->byte_count = cpu_to_le32(byte_cnt);

	for (i = 0; i < byte_cnt; i++) {

		req->snd_buff[i] = (u8)(pattern >> (j*8));

		j++;

		if (j > 7)

			j = 0;

	}



	status = be_mcc_notify_wait(adapter);



	if (!status) {

		struct be_cmd_resp_ddrdma_test *resp;

		resp = cmd->va;

		if ((memcmp(resp->rcv_buff, req->snd_buff, byte_cnt) != 0) ||

				resp->snd_err) {

			status = -1;

		}

	}



err:

	spin_unlock_bh(&adapter->mcc_lock);

	return status;

}

drivers/net/benet/be_cmds.h

+48 −0
Original line number Diff line number Diff line
@@ -112,6 +112,7 @@ struct be_mcc_mailbox { 


#define CMD_SUBSYSTEM_COMMON	0x1

#define CMD_SUBSYSTEM_ETH 	0x3

#define CMD_SUBSYSTEM_LOWLEVEL  0xb



#define OPCODE_COMMON_NTWK_MAC_QUERY			1

#define OPCODE_COMMON_NTWK_MAC_SET			2
@@ -152,6 +153,9 @@ struct be_mcc_mailbox { 
#define OPCODE_ETH_RX_DESTROY           		10

#define OPCODE_ETH_ACPI_WOL_MAGIC_CONFIG		12



#define OPCODE_LOWLEVEL_HOST_DDR_DMA                    17

#define OPCODE_LOWLEVEL_LOOPBACK_TEST                   18



struct be_cmd_req_hdr {

	u8 opcode;		/* dword 0 */

	u8 subsystem;		/* dword 0 */
@@ -797,6 +801,45 @@ struct be_cmd_req_acpi_wol_magic_config{ 
	u8 rsvd2[2];

} __packed;



/********************** LoopBack test *********************/

struct be_cmd_req_loopback_test {

	struct be_cmd_req_hdr hdr;

	u32 loopback_type;

	u32 num_pkts;

	u64 pattern;

	u32 src_port;

	u32 dest_port;

	u32 pkt_size;

};



struct be_cmd_resp_loopback_test {

	struct be_cmd_resp_hdr resp_hdr;

	u32    status;

	u32    num_txfer;

	u32    num_rx;

	u32    miscomp_off;

	u32    ticks_compl;

};



/********************** DDR DMA test *********************/

struct be_cmd_req_ddrdma_test {

	struct be_cmd_req_hdr hdr;

	u64 pattern;

	u32 byte_count;

	u32 rsvd0;

	u8  snd_buff[4096];

	u8  rsvd1[4096];

};



struct be_cmd_resp_ddrdma_test {

	struct be_cmd_resp_hdr hdr;

	u64 pattern;

	u32 byte_cnt;

	u32 snd_err;

	u8  rsvd0[4096];

	u8  rcv_buff[4096];

};



extern int be_pci_fnum_get(struct be_adapter *adapter);

extern int be_cmd_POST(struct be_adapter *adapter);

extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
@@ -864,3 +907,8 @@ extern int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac, 
				struct be_dma_mem *nonemb_cmd);

extern int be_cmd_fw_init(struct be_adapter *adapter);

extern int be_cmd_fw_clean(struct be_adapter *adapter);

extern int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,

				u32 loopback_type, u32 pkt_size,

				u32 num_pkts, u64 pattern);

extern int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern,

			u32 byte_cnt, struct be_dma_mem *cmd);

drivers/net/benet/be_ethtool.c

+82 −0
Original line number Diff line number Diff line
@@ -107,6 +107,18 @@ static const struct be_ethtool_stat et_stats[] = { 
};

#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)



static const char et_self_tests[][ETH_GSTRING_LEN] = {

	"MAC Loopback test",

	"PHY Loopback test",

	"External Loopback test",

	"DDR DMA test"

};



#define ETHTOOL_TESTS_NUM ARRAY_SIZE(et_self_tests)

#define BE_MAC_LOOPBACK 0x0

#define BE_PHY_LOOPBACK 0x1

#define BE_ONE_PORT_EXT_LOOPBACK 0x2



static void

be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)

{
@@ -278,12 +290,20 @@ be_get_stat_strings(struct net_device *netdev, uint32_t stringset, 
			data += ETH_GSTRING_LEN;

		}

		break;

	case ETH_SS_TEST:

		for (i = 0; i < ETHTOOL_TESTS_NUM; i++) {

			memcpy(data, et_self_tests[i], ETH_GSTRING_LEN);

			data += ETH_GSTRING_LEN;

		}

		break;

	}

}



static int be_get_sset_count(struct net_device *netdev, int stringset)

{

	switch (stringset) {

	case ETH_SS_TEST:

		return ETHTOOL_TESTS_NUM;

	case ETH_SS_STATS:

		return ETHTOOL_STATS_NUM;

	default:
@@ -441,6 +461,67 @@ be_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 
	return 0;

}



static int

be_test_ddr_dma(struct be_adapter *adapter)

{

	int ret, i;

	struct be_dma_mem ddrdma_cmd;

	u64 pattern[2] = {0x5a5a5a5a5a5a5a5a, 0xa5a5a5a5a5a5a5a5};



	ddrdma_cmd.size = sizeof(struct be_cmd_req_ddrdma_test);

	ddrdma_cmd.va = pci_alloc_consistent(adapter->pdev, ddrdma_cmd.size,

					&ddrdma_cmd.dma);

	if (!ddrdma_cmd.va) {

		dev_err(&adapter->pdev->dev, "Memory allocation failure \n");

		return -ENOMEM;

	}



	for (i = 0; i < 2; i++) {

		ret = be_cmd_ddr_dma_test(adapter, pattern[i],

					4096, &ddrdma_cmd);

		if (ret != 0)

			goto err;

	}



err:

	pci_free_consistent(adapter->pdev, ddrdma_cmd.size,

			ddrdma_cmd.va, ddrdma_cmd.dma);

	return ret;

}



static void

be_self_test(struct net_device *netdev, struct ethtool_test *test, u64 *data)

{

	struct be_adapter *adapter = netdev_priv(netdev);



	memset(data, 0, sizeof(u64) * ETHTOOL_TESTS_NUM);



	if (test->flags & ETH_TEST_FL_OFFLINE) {

		data[0] = be_cmd_loopback_test(adapter, adapter->port_num,

						BE_MAC_LOOPBACK, 1500,

						2, 0xabc);

		if (data[0] != 0)

			test->flags |= ETH_TEST_FL_FAILED;



		data[1] = be_cmd_loopback_test(adapter, adapter->port_num,

						BE_PHY_LOOPBACK, 1500,

						2, 0xabc);

		if (data[1] != 0)

			test->flags |= ETH_TEST_FL_FAILED;



		data[2] = be_cmd_loopback_test(adapter, adapter->port_num,

						BE_ONE_PORT_EXT_LOOPBACK,

						1500, 2, 0xabc);

		if (data[2] != 0)

			test->flags |= ETH_TEST_FL_FAILED;



		data[3] = be_test_ddr_dma(adapter);

		if (data[3] != 0)

			test->flags |= ETH_TEST_FL_FAILED;

	}



}



static int

be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)

{
@@ -479,4 +560,5 @@ const struct ethtool_ops be_ethtool_ops = { 
	.get_sset_count = be_get_sset_count,

	.get_ethtool_stats = be_get_ethtool_stats,

	.flash_device = be_do_flash,

	.self_test = be_self_test,

};