1fe56b9e6SYuval Mintz /* QLogic qed NIC Driver
2fe56b9e6SYuval Mintz  * Copyright (c) 2015 QLogic Corporation
3fe56b9e6SYuval Mintz  *
4fe56b9e6SYuval Mintz  * This software is available under the terms of the GNU General Public License
5fe56b9e6SYuval Mintz  * (GPL) Version 2, available from the file COPYING in the main directory of
6fe56b9e6SYuval Mintz  * this source tree.
7fe56b9e6SYuval Mintz  */
8fe56b9e6SYuval Mintz 
9fe56b9e6SYuval Mintz #include <linux/types.h>
10fe56b9e6SYuval Mintz #include <asm/byteorder.h>
11fe56b9e6SYuval Mintz #include <linux/delay.h>
12fe56b9e6SYuval Mintz #include <linux/errno.h>
13fe56b9e6SYuval Mintz #include <linux/kernel.h>
14fe56b9e6SYuval Mintz #include <linux/slab.h>
155529bad9STomer Tayar #include <linux/spinlock.h>
16fe56b9e6SYuval Mintz #include <linux/string.h>
17fe56b9e6SYuval Mintz #include "qed.h"
1839651abdSSudarsana Reddy Kalluru #include "qed_dcbx.h"
19fe56b9e6SYuval Mintz #include "qed_hsi.h"
20fe56b9e6SYuval Mintz #include "qed_hw.h"
21fe56b9e6SYuval Mintz #include "qed_mcp.h"
22fe56b9e6SYuval Mintz #include "qed_reg_addr.h"
231408cc1fSYuval Mintz #include "qed_sriov.h"
241408cc1fSYuval Mintz 
25fe56b9e6SYuval Mintz #define CHIP_MCP_RESP_ITER_US 10
26fe56b9e6SYuval Mintz 
27fe56b9e6SYuval Mintz #define QED_DRV_MB_MAX_RETRIES	(500 * 1000)	/* Account for 5 sec */
28fe56b9e6SYuval Mintz #define QED_MCP_RESET_RETRIES	(50 * 1000)	/* Account for 500 msec */
29fe56b9e6SYuval Mintz 
30fe56b9e6SYuval Mintz #define DRV_INNER_WR(_p_hwfn, _p_ptt, _ptr, _offset, _val)	     \
31fe56b9e6SYuval Mintz 	qed_wr(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset), \
32fe56b9e6SYuval Mintz 	       _val)
33fe56b9e6SYuval Mintz 
34fe56b9e6SYuval Mintz #define DRV_INNER_RD(_p_hwfn, _p_ptt, _ptr, _offset) \
35fe56b9e6SYuval Mintz 	qed_rd(_p_hwfn, _p_ptt, (_p_hwfn->mcp_info->_ptr + _offset))
36fe56b9e6SYuval Mintz 
37fe56b9e6SYuval Mintz #define DRV_MB_WR(_p_hwfn, _p_ptt, _field, _val)  \
38fe56b9e6SYuval Mintz 	DRV_INNER_WR(p_hwfn, _p_ptt, drv_mb_addr, \
39fe56b9e6SYuval Mintz 		     offsetof(struct public_drv_mb, _field), _val)
40fe56b9e6SYuval Mintz 
41fe56b9e6SYuval Mintz #define DRV_MB_RD(_p_hwfn, _p_ptt, _field)	   \
42fe56b9e6SYuval Mintz 	DRV_INNER_RD(_p_hwfn, _p_ptt, drv_mb_addr, \
43fe56b9e6SYuval Mintz 		     offsetof(struct public_drv_mb, _field))
44fe56b9e6SYuval Mintz 
45fe56b9e6SYuval Mintz #define PDA_COMP (((FW_MAJOR_VERSION) + (FW_MINOR_VERSION << 8)) << \
46fe56b9e6SYuval Mintz 		  DRV_ID_PDA_COMP_VER_SHIFT)
47fe56b9e6SYuval Mintz 
48fe56b9e6SYuval Mintz #define MCP_BYTES_PER_MBIT_SHIFT 17
49fe56b9e6SYuval Mintz 
50fe56b9e6SYuval Mintz bool qed_mcp_is_init(struct qed_hwfn *p_hwfn)
51fe56b9e6SYuval Mintz {
52fe56b9e6SYuval Mintz 	if (!p_hwfn->mcp_info || !p_hwfn->mcp_info->public_base)
53fe56b9e6SYuval Mintz 		return false;
54fe56b9e6SYuval Mintz 	return true;
55fe56b9e6SYuval Mintz }
56fe56b9e6SYuval Mintz 
571a635e48SYuval Mintz void qed_mcp_cmd_port_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
58fe56b9e6SYuval Mintz {
59fe56b9e6SYuval Mintz 	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
60fe56b9e6SYuval Mintz 					PUBLIC_PORT);
61fe56b9e6SYuval Mintz 	u32 mfw_mb_offsize = qed_rd(p_hwfn, p_ptt, addr);
62fe56b9e6SYuval Mintz 
63fe56b9e6SYuval Mintz 	p_hwfn->mcp_info->port_addr = SECTION_ADDR(mfw_mb_offsize,
64fe56b9e6SYuval Mintz 						   MFW_PORT(p_hwfn));
65fe56b9e6SYuval Mintz 	DP_VERBOSE(p_hwfn, QED_MSG_SP,
66fe56b9e6SYuval Mintz 		   "port_addr = 0x%x, port_id 0x%02x\n",
67fe56b9e6SYuval Mintz 		   p_hwfn->mcp_info->port_addr, MFW_PORT(p_hwfn));
68fe56b9e6SYuval Mintz }
69fe56b9e6SYuval Mintz 
701a635e48SYuval Mintz void qed_mcp_read_mb(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
71fe56b9e6SYuval Mintz {
72fe56b9e6SYuval Mintz 	u32 length = MFW_DRV_MSG_MAX_DWORDS(p_hwfn->mcp_info->mfw_mb_length);
73fe56b9e6SYuval Mintz 	u32 tmp, i;
74fe56b9e6SYuval Mintz 
75fe56b9e6SYuval Mintz 	if (!p_hwfn->mcp_info->public_base)
76fe56b9e6SYuval Mintz 		return;
77fe56b9e6SYuval Mintz 
78fe56b9e6SYuval Mintz 	for (i = 0; i < length; i++) {
79fe56b9e6SYuval Mintz 		tmp = qed_rd(p_hwfn, p_ptt,
80fe56b9e6SYuval Mintz 			     p_hwfn->mcp_info->mfw_mb_addr +
81fe56b9e6SYuval Mintz 			     (i << 2) + sizeof(u32));
82fe56b9e6SYuval Mintz 
83fe56b9e6SYuval Mintz 		/* The MB data is actually BE; Need to force it to cpu */
84fe56b9e6SYuval Mintz 		((u32 *)p_hwfn->mcp_info->mfw_mb_cur)[i] =
85fe56b9e6SYuval Mintz 			be32_to_cpu((__force __be32)tmp);
86fe56b9e6SYuval Mintz 	}
87fe56b9e6SYuval Mintz }
88fe56b9e6SYuval Mintz 
89fe56b9e6SYuval Mintz int qed_mcp_free(struct qed_hwfn *p_hwfn)
90fe56b9e6SYuval Mintz {
91fe56b9e6SYuval Mintz 	if (p_hwfn->mcp_info) {
92fe56b9e6SYuval Mintz 		kfree(p_hwfn->mcp_info->mfw_mb_cur);
93fe56b9e6SYuval Mintz 		kfree(p_hwfn->mcp_info->mfw_mb_shadow);
94fe56b9e6SYuval Mintz 	}
95fe56b9e6SYuval Mintz 	kfree(p_hwfn->mcp_info);
96fe56b9e6SYuval Mintz 
97fe56b9e6SYuval Mintz 	return 0;
98fe56b9e6SYuval Mintz }
99fe56b9e6SYuval Mintz 
1001a635e48SYuval Mintz static int qed_load_mcp_offsets(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
101fe56b9e6SYuval Mintz {
102fe56b9e6SYuval Mintz 	struct qed_mcp_info *p_info = p_hwfn->mcp_info;
103fe56b9e6SYuval Mintz 	u32 drv_mb_offsize, mfw_mb_offsize;
104fe56b9e6SYuval Mintz 	u32 mcp_pf_id = MCP_PF_ID(p_hwfn);
105fe56b9e6SYuval Mintz 
106fe56b9e6SYuval Mintz 	p_info->public_base = qed_rd(p_hwfn, p_ptt, MISC_REG_SHARED_MEM_ADDR);
107fe56b9e6SYuval Mintz 	if (!p_info->public_base)
108fe56b9e6SYuval Mintz 		return 0;
109fe56b9e6SYuval Mintz 
110fe56b9e6SYuval Mintz 	p_info->public_base |= GRCBASE_MCP;
111fe56b9e6SYuval Mintz 
112fe56b9e6SYuval Mintz 	/* Calculate the driver and MFW mailbox address */
113fe56b9e6SYuval Mintz 	drv_mb_offsize = qed_rd(p_hwfn, p_ptt,
114fe56b9e6SYuval Mintz 				SECTION_OFFSIZE_ADDR(p_info->public_base,
115fe56b9e6SYuval Mintz 						     PUBLIC_DRV_MB));
116fe56b9e6SYuval Mintz 	p_info->drv_mb_addr = SECTION_ADDR(drv_mb_offsize, mcp_pf_id);
117fe56b9e6SYuval Mintz 	DP_VERBOSE(p_hwfn, QED_MSG_SP,
118fe56b9e6SYuval Mintz 		   "drv_mb_offsiz = 0x%x, drv_mb_addr = 0x%x mcp_pf_id = 0x%x\n",
119fe56b9e6SYuval Mintz 		   drv_mb_offsize, p_info->drv_mb_addr, mcp_pf_id);
120fe56b9e6SYuval Mintz 
121fe56b9e6SYuval Mintz 	/* Set the MFW MB address */
122fe56b9e6SYuval Mintz 	mfw_mb_offsize = qed_rd(p_hwfn, p_ptt,
123fe56b9e6SYuval Mintz 				SECTION_OFFSIZE_ADDR(p_info->public_base,
124fe56b9e6SYuval Mintz 						     PUBLIC_MFW_MB));
125fe56b9e6SYuval Mintz 	p_info->mfw_mb_addr = SECTION_ADDR(mfw_mb_offsize, mcp_pf_id);
126fe56b9e6SYuval Mintz 	p_info->mfw_mb_length =	(u16)qed_rd(p_hwfn, p_ptt, p_info->mfw_mb_addr);
127fe56b9e6SYuval Mintz 
128fe56b9e6SYuval Mintz 	/* Get the current driver mailbox sequence before sending
129fe56b9e6SYuval Mintz 	 * the first command
130fe56b9e6SYuval Mintz 	 */
131fe56b9e6SYuval Mintz 	p_info->drv_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
132fe56b9e6SYuval Mintz 			     DRV_MSG_SEQ_NUMBER_MASK;
133fe56b9e6SYuval Mintz 
134fe56b9e6SYuval Mintz 	/* Get current FW pulse sequence */
135fe56b9e6SYuval Mintz 	p_info->drv_pulse_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_pulse_mb) &
136fe56b9e6SYuval Mintz 				DRV_PULSE_SEQ_MASK;
137fe56b9e6SYuval Mintz 
138fe56b9e6SYuval Mintz 	p_info->mcp_hist = (u16)qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
139fe56b9e6SYuval Mintz 
140fe56b9e6SYuval Mintz 	return 0;
141fe56b9e6SYuval Mintz }
142fe56b9e6SYuval Mintz 
1431a635e48SYuval Mintz int qed_mcp_cmd_init(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
144fe56b9e6SYuval Mintz {
145fe56b9e6SYuval Mintz 	struct qed_mcp_info *p_info;
146fe56b9e6SYuval Mintz 	u32 size;
147fe56b9e6SYuval Mintz 
148fe56b9e6SYuval Mintz 	/* Allocate mcp_info structure */
14960fffb3bSYuval Mintz 	p_hwfn->mcp_info = kzalloc(sizeof(*p_hwfn->mcp_info), GFP_KERNEL);
150fe56b9e6SYuval Mintz 	if (!p_hwfn->mcp_info)
151fe56b9e6SYuval Mintz 		goto err;
152fe56b9e6SYuval Mintz 	p_info = p_hwfn->mcp_info;
153fe56b9e6SYuval Mintz 
154fe56b9e6SYuval Mintz 	if (qed_load_mcp_offsets(p_hwfn, p_ptt) != 0) {
155fe56b9e6SYuval Mintz 		DP_NOTICE(p_hwfn, "MCP is not initialized\n");
156fe56b9e6SYuval Mintz 		/* Do not free mcp_info here, since public_base indicate that
157fe56b9e6SYuval Mintz 		 * the MCP is not initialized
158fe56b9e6SYuval Mintz 		 */
159fe56b9e6SYuval Mintz 		return 0;
160fe56b9e6SYuval Mintz 	}
161fe56b9e6SYuval Mintz 
162fe56b9e6SYuval Mintz 	size = MFW_DRV_MSG_MAX_DWORDS(p_info->mfw_mb_length) * sizeof(u32);
16360fffb3bSYuval Mintz 	p_info->mfw_mb_cur = kzalloc(size, GFP_KERNEL);
16483aeb933SYuval Mintz 	p_info->mfw_mb_shadow = kzalloc(size, GFP_KERNEL);
165fe56b9e6SYuval Mintz 	if (!p_info->mfw_mb_shadow || !p_info->mfw_mb_addr)
166fe56b9e6SYuval Mintz 		goto err;
167fe56b9e6SYuval Mintz 
1685529bad9STomer Tayar 	/* Initialize the MFW spinlock */
1695529bad9STomer Tayar 	spin_lock_init(&p_info->lock);
170fe56b9e6SYuval Mintz 
171fe56b9e6SYuval Mintz 	return 0;
172fe56b9e6SYuval Mintz 
173fe56b9e6SYuval Mintz err:
174fe56b9e6SYuval Mintz 	DP_NOTICE(p_hwfn, "Failed to allocate mcp memory\n");
175fe56b9e6SYuval Mintz 	qed_mcp_free(p_hwfn);
176fe56b9e6SYuval Mintz 	return -ENOMEM;
177fe56b9e6SYuval Mintz }
178fe56b9e6SYuval Mintz 
1795529bad9STomer Tayar /* Locks the MFW mailbox of a PF to ensure a single access.
1805529bad9STomer Tayar  * The lock is achieved in most cases by holding a spinlock, causing other
1815529bad9STomer Tayar  * threads to wait till a previous access is done.
1825529bad9STomer Tayar  * In some cases (currently when a [UN]LOAD_REQ commands are sent), the single
1835529bad9STomer Tayar  * access is achieved by setting a blocking flag, which will fail other
1845529bad9STomer Tayar  * competing contexts to send their mailboxes.
1855529bad9STomer Tayar  */
1861a635e48SYuval Mintz static int qed_mcp_mb_lock(struct qed_hwfn *p_hwfn, u32 cmd)
1875529bad9STomer Tayar {
1885529bad9STomer Tayar 	spin_lock_bh(&p_hwfn->mcp_info->lock);
1895529bad9STomer Tayar 
1905529bad9STomer Tayar 	/* The spinlock shouldn't be acquired when the mailbox command is
1915529bad9STomer Tayar 	 * [UN]LOAD_REQ, since the engine is locked by the MFW, and a parallel
1925529bad9STomer Tayar 	 * pending [UN]LOAD_REQ command of another PF together with a spinlock
1935529bad9STomer Tayar 	 * (i.e. interrupts are disabled) - can lead to a deadlock.
1945529bad9STomer Tayar 	 * It is assumed that for a single PF, no other mailbox commands can be
1955529bad9STomer Tayar 	 * sent from another context while sending LOAD_REQ, and that any
1965529bad9STomer Tayar 	 * parallel commands to UNLOAD_REQ can be cancelled.
1975529bad9STomer Tayar 	 */
1985529bad9STomer Tayar 	if (cmd == DRV_MSG_CODE_LOAD_DONE || cmd == DRV_MSG_CODE_UNLOAD_DONE)
1995529bad9STomer Tayar 		p_hwfn->mcp_info->block_mb_sending = false;
2005529bad9STomer Tayar 
2015529bad9STomer Tayar 	if (p_hwfn->mcp_info->block_mb_sending) {
2025529bad9STomer Tayar 		DP_NOTICE(p_hwfn,
2035529bad9STomer Tayar 			  "Trying to send a MFW mailbox command [0x%x] in parallel to [UN]LOAD_REQ. Aborting.\n",
2045529bad9STomer Tayar 			  cmd);
2055529bad9STomer Tayar 		spin_unlock_bh(&p_hwfn->mcp_info->lock);
2065529bad9STomer Tayar 		return -EBUSY;
2075529bad9STomer Tayar 	}
2085529bad9STomer Tayar 
2095529bad9STomer Tayar 	if (cmd == DRV_MSG_CODE_LOAD_REQ || cmd == DRV_MSG_CODE_UNLOAD_REQ) {
2105529bad9STomer Tayar 		p_hwfn->mcp_info->block_mb_sending = true;
2115529bad9STomer Tayar 		spin_unlock_bh(&p_hwfn->mcp_info->lock);
2125529bad9STomer Tayar 	}
2135529bad9STomer Tayar 
2145529bad9STomer Tayar 	return 0;
2155529bad9STomer Tayar }
2165529bad9STomer Tayar 
2171a635e48SYuval Mintz static void qed_mcp_mb_unlock(struct qed_hwfn *p_hwfn, u32 cmd)
2185529bad9STomer Tayar {
2195529bad9STomer Tayar 	if (cmd != DRV_MSG_CODE_LOAD_REQ && cmd != DRV_MSG_CODE_UNLOAD_REQ)
2205529bad9STomer Tayar 		spin_unlock_bh(&p_hwfn->mcp_info->lock);
2215529bad9STomer Tayar }
2225529bad9STomer Tayar 
2231a635e48SYuval Mintz int qed_mcp_reset(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
224fe56b9e6SYuval Mintz {
225fe56b9e6SYuval Mintz 	u32 seq = ++p_hwfn->mcp_info->drv_mb_seq;
226fe56b9e6SYuval Mintz 	u8 delay = CHIP_MCP_RESP_ITER_US;
227fe56b9e6SYuval Mintz 	u32 org_mcp_reset_seq, cnt = 0;
228fe56b9e6SYuval Mintz 	int rc = 0;
229fe56b9e6SYuval Mintz 
2305529bad9STomer Tayar 	/* Ensure that only a single thread is accessing the mailbox at a
2315529bad9STomer Tayar 	 * certain time.
2325529bad9STomer Tayar 	 */
2335529bad9STomer Tayar 	rc = qed_mcp_mb_lock(p_hwfn, DRV_MSG_CODE_MCP_RESET);
2345529bad9STomer Tayar 	if (rc != 0)
2355529bad9STomer Tayar 		return rc;
2365529bad9STomer Tayar 
237fe56b9e6SYuval Mintz 	/* Set drv command along with the updated sequence */
238fe56b9e6SYuval Mintz 	org_mcp_reset_seq = qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0);
239fe56b9e6SYuval Mintz 	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header,
240fe56b9e6SYuval Mintz 		  (DRV_MSG_CODE_MCP_RESET | seq));
241fe56b9e6SYuval Mintz 
242fe56b9e6SYuval Mintz 	do {
243fe56b9e6SYuval Mintz 		/* Wait for MFW response */
244fe56b9e6SYuval Mintz 		udelay(delay);
245fe56b9e6SYuval Mintz 		/* Give the FW up to 500 second (50*1000*10usec) */
246fe56b9e6SYuval Mintz 	} while ((org_mcp_reset_seq == qed_rd(p_hwfn, p_ptt,
247fe56b9e6SYuval Mintz 					      MISCS_REG_GENERIC_POR_0)) &&
248fe56b9e6SYuval Mintz 		 (cnt++ < QED_MCP_RESET_RETRIES));
249fe56b9e6SYuval Mintz 
250fe56b9e6SYuval Mintz 	if (org_mcp_reset_seq !=
251fe56b9e6SYuval Mintz 	    qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
252fe56b9e6SYuval Mintz 		DP_VERBOSE(p_hwfn, QED_MSG_SP,
253fe56b9e6SYuval Mintz 			   "MCP was reset after %d usec\n", cnt * delay);
254fe56b9e6SYuval Mintz 	} else {
255fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "Failed to reset MCP\n");
256fe56b9e6SYuval Mintz 		rc = -EAGAIN;
257fe56b9e6SYuval Mintz 	}
258fe56b9e6SYuval Mintz 
2595529bad9STomer Tayar 	qed_mcp_mb_unlock(p_hwfn, DRV_MSG_CODE_MCP_RESET);
2605529bad9STomer Tayar 
261fe56b9e6SYuval Mintz 	return rc;
262fe56b9e6SYuval Mintz }
263fe56b9e6SYuval Mintz 
264fe56b9e6SYuval Mintz static int qed_do_mcp_cmd(struct qed_hwfn *p_hwfn,
265fe56b9e6SYuval Mintz 			  struct qed_ptt *p_ptt,
266fe56b9e6SYuval Mintz 			  u32 cmd,
267fe56b9e6SYuval Mintz 			  u32 param,
268fe56b9e6SYuval Mintz 			  u32 *o_mcp_resp,
269fe56b9e6SYuval Mintz 			  u32 *o_mcp_param)
270fe56b9e6SYuval Mintz {
271fe56b9e6SYuval Mintz 	u8 delay = CHIP_MCP_RESP_ITER_US;
272fe56b9e6SYuval Mintz 	u32 seq, cnt = 1, actual_mb_seq;
273fe56b9e6SYuval Mintz 	int rc = 0;
274fe56b9e6SYuval Mintz 
275fe56b9e6SYuval Mintz 	/* Get actual driver mailbox sequence */
276fe56b9e6SYuval Mintz 	actual_mb_seq = DRV_MB_RD(p_hwfn, p_ptt, drv_mb_header) &
277fe56b9e6SYuval Mintz 			DRV_MSG_SEQ_NUMBER_MASK;
278fe56b9e6SYuval Mintz 
279fe56b9e6SYuval Mintz 	/* Use MCP history register to check if MCP reset occurred between
280fe56b9e6SYuval Mintz 	 * init time and now.
281fe56b9e6SYuval Mintz 	 */
282fe56b9e6SYuval Mintz 	if (p_hwfn->mcp_info->mcp_hist !=
283fe56b9e6SYuval Mintz 	    qed_rd(p_hwfn, p_ptt, MISCS_REG_GENERIC_POR_0)) {
284fe56b9e6SYuval Mintz 		DP_VERBOSE(p_hwfn, QED_MSG_SP, "Rereading MCP offsets\n");
285fe56b9e6SYuval Mintz 		qed_load_mcp_offsets(p_hwfn, p_ptt);
286fe56b9e6SYuval Mintz 		qed_mcp_cmd_port_init(p_hwfn, p_ptt);
287fe56b9e6SYuval Mintz 	}
288fe56b9e6SYuval Mintz 	seq = ++p_hwfn->mcp_info->drv_mb_seq;
289fe56b9e6SYuval Mintz 
290fe56b9e6SYuval Mintz 	/* Set drv param */
291fe56b9e6SYuval Mintz 	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_param, param);
292fe56b9e6SYuval Mintz 
293fe56b9e6SYuval Mintz 	/* Set drv command along with the updated sequence */
294fe56b9e6SYuval Mintz 	DRV_MB_WR(p_hwfn, p_ptt, drv_mb_header, (cmd | seq));
295fe56b9e6SYuval Mintz 
296fe56b9e6SYuval Mintz 	DP_VERBOSE(p_hwfn, QED_MSG_SP,
297fe56b9e6SYuval Mintz 		   "wrote command (%x) to MFW MB param 0x%08x\n",
298fe56b9e6SYuval Mintz 		   (cmd | seq), param);
299fe56b9e6SYuval Mintz 
300fe56b9e6SYuval Mintz 	do {
301fe56b9e6SYuval Mintz 		/* Wait for MFW response */
302fe56b9e6SYuval Mintz 		udelay(delay);
303fe56b9e6SYuval Mintz 		*o_mcp_resp = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_header);
304fe56b9e6SYuval Mintz 
305fe56b9e6SYuval Mintz 		/* Give the FW up to 5 second (500*10ms) */
306fe56b9e6SYuval Mintz 	} while ((seq != (*o_mcp_resp & FW_MSG_SEQ_NUMBER_MASK)) &&
307fe56b9e6SYuval Mintz 		 (cnt++ < QED_DRV_MB_MAX_RETRIES));
308fe56b9e6SYuval Mintz 
309fe56b9e6SYuval Mintz 	DP_VERBOSE(p_hwfn, QED_MSG_SP,
310fe56b9e6SYuval Mintz 		   "[after %d ms] read (%x) seq is (%x) from FW MB\n",
311fe56b9e6SYuval Mintz 		   cnt * delay, *o_mcp_resp, seq);
312fe56b9e6SYuval Mintz 
313fe56b9e6SYuval Mintz 	/* Is this a reply to our command? */
314fe56b9e6SYuval Mintz 	if (seq == (*o_mcp_resp & FW_MSG_SEQ_NUMBER_MASK)) {
315fe56b9e6SYuval Mintz 		*o_mcp_resp &= FW_MSG_CODE_MASK;
316fe56b9e6SYuval Mintz 		/* Get the MCP param */
317fe56b9e6SYuval Mintz 		*o_mcp_param = DRV_MB_RD(p_hwfn, p_ptt, fw_mb_param);
318fe56b9e6SYuval Mintz 	} else {
319fe56b9e6SYuval Mintz 		/* FW BUG! */
320fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "MFW failed to respond!\n");
321fe56b9e6SYuval Mintz 		*o_mcp_resp = 0;
322fe56b9e6SYuval Mintz 		rc = -EAGAIN;
323fe56b9e6SYuval Mintz 	}
324fe56b9e6SYuval Mintz 	return rc;
325fe56b9e6SYuval Mintz }
326fe56b9e6SYuval Mintz 
3275529bad9STomer Tayar static int qed_mcp_cmd_and_union(struct qed_hwfn *p_hwfn,
328fe56b9e6SYuval Mintz 				 struct qed_ptt *p_ptt,
3295529bad9STomer Tayar 				 struct qed_mcp_mb_params *p_mb_params)
330fe56b9e6SYuval Mintz {
3315529bad9STomer Tayar 	u32 union_data_addr;
3325529bad9STomer Tayar 	int rc;
333fe56b9e6SYuval Mintz 
334fe56b9e6SYuval Mintz 	/* MCP not initialized */
335fe56b9e6SYuval Mintz 	if (!qed_mcp_is_init(p_hwfn)) {
336fe56b9e6SYuval Mintz 		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
337fe56b9e6SYuval Mintz 		return -EBUSY;
338fe56b9e6SYuval Mintz 	}
339fe56b9e6SYuval Mintz 
3405529bad9STomer Tayar 	union_data_addr = p_hwfn->mcp_info->drv_mb_addr +
3415529bad9STomer Tayar 			  offsetof(struct public_drv_mb, union_data);
3425529bad9STomer Tayar 
3435529bad9STomer Tayar 	/* Ensure that only a single thread is accessing the mailbox at a
3445529bad9STomer Tayar 	 * certain time.
345fe56b9e6SYuval Mintz 	 */
3465529bad9STomer Tayar 	rc = qed_mcp_mb_lock(p_hwfn, p_mb_params->cmd);
3475529bad9STomer Tayar 	if (rc)
3485529bad9STomer Tayar 		return rc;
3495529bad9STomer Tayar 
3505529bad9STomer Tayar 	if (p_mb_params->p_data_src != NULL)
3515529bad9STomer Tayar 		qed_memcpy_to(p_hwfn, p_ptt, union_data_addr,
3525529bad9STomer Tayar 			      p_mb_params->p_data_src,
3535529bad9STomer Tayar 			      sizeof(*p_mb_params->p_data_src));
3545529bad9STomer Tayar 
3555529bad9STomer Tayar 	rc = qed_do_mcp_cmd(p_hwfn, p_ptt, p_mb_params->cmd,
3565529bad9STomer Tayar 			    p_mb_params->param, &p_mb_params->mcp_resp,
3575529bad9STomer Tayar 			    &p_mb_params->mcp_param);
3585529bad9STomer Tayar 
3595529bad9STomer Tayar 	if (p_mb_params->p_data_dst != NULL)
3605529bad9STomer Tayar 		qed_memcpy_from(p_hwfn, p_ptt, p_mb_params->p_data_dst,
3615529bad9STomer Tayar 				union_data_addr,
3625529bad9STomer Tayar 				sizeof(*p_mb_params->p_data_dst));
3635529bad9STomer Tayar 
3645529bad9STomer Tayar 	qed_mcp_mb_unlock(p_hwfn, p_mb_params->cmd);
365fe56b9e6SYuval Mintz 
366fe56b9e6SYuval Mintz 	return rc;
367fe56b9e6SYuval Mintz }
368fe56b9e6SYuval Mintz 
3695529bad9STomer Tayar int qed_mcp_cmd(struct qed_hwfn *p_hwfn,
3705529bad9STomer Tayar 		struct qed_ptt *p_ptt,
3715529bad9STomer Tayar 		u32 cmd,
3725529bad9STomer Tayar 		u32 param,
3735529bad9STomer Tayar 		u32 *o_mcp_resp,
3745529bad9STomer Tayar 		u32 *o_mcp_param)
375fe56b9e6SYuval Mintz {
3765529bad9STomer Tayar 	struct qed_mcp_mb_params mb_params;
3775529bad9STomer Tayar 	int rc;
378fe56b9e6SYuval Mintz 
3795529bad9STomer Tayar 	memset(&mb_params, 0, sizeof(mb_params));
3805529bad9STomer Tayar 	mb_params.cmd = cmd;
3815529bad9STomer Tayar 	mb_params.param = param;
3825529bad9STomer Tayar 	rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
3835529bad9STomer Tayar 	if (rc)
3845529bad9STomer Tayar 		return rc;
3855529bad9STomer Tayar 
3865529bad9STomer Tayar 	*o_mcp_resp = mb_params.mcp_resp;
3875529bad9STomer Tayar 	*o_mcp_param = mb_params.mcp_param;
3885529bad9STomer Tayar 
3895529bad9STomer Tayar 	return 0;
390fe56b9e6SYuval Mintz }
391fe56b9e6SYuval Mintz 
392fe56b9e6SYuval Mintz int qed_mcp_load_req(struct qed_hwfn *p_hwfn,
3931a635e48SYuval Mintz 		     struct qed_ptt *p_ptt, u32 *p_load_code)
394fe56b9e6SYuval Mintz {
395fe56b9e6SYuval Mintz 	struct qed_dev *cdev = p_hwfn->cdev;
3965529bad9STomer Tayar 	struct qed_mcp_mb_params mb_params;
3975529bad9STomer Tayar 	union drv_union_data union_data;
398fe56b9e6SYuval Mintz 	int rc;
399fe56b9e6SYuval Mintz 
4005529bad9STomer Tayar 	memset(&mb_params, 0, sizeof(mb_params));
401fe56b9e6SYuval Mintz 	/* Load Request */
4025529bad9STomer Tayar 	mb_params.cmd = DRV_MSG_CODE_LOAD_REQ;
4035529bad9STomer Tayar 	mb_params.param = PDA_COMP | DRV_ID_MCP_HSI_VER_CURRENT |
4045529bad9STomer Tayar 			  cdev->drv_type;
4055529bad9STomer Tayar 	memcpy(&union_data.ver_str, cdev->ver_str, MCP_DRV_VER_STR_SIZE);
4065529bad9STomer Tayar 	mb_params.p_data_src = &union_data;
4075529bad9STomer Tayar 	rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
408fe56b9e6SYuval Mintz 
409fe56b9e6SYuval Mintz 	/* if mcp fails to respond we must abort */
410fe56b9e6SYuval Mintz 	if (rc) {
411fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
412fe56b9e6SYuval Mintz 		return rc;
413fe56b9e6SYuval Mintz 	}
414fe56b9e6SYuval Mintz 
4155529bad9STomer Tayar 	*p_load_code = mb_params.mcp_resp;
4165529bad9STomer Tayar 
417fe56b9e6SYuval Mintz 	/* If MFW refused (e.g. other port is in diagnostic mode) we
418fe56b9e6SYuval Mintz 	 * must abort. This can happen in the following cases:
419fe56b9e6SYuval Mintz 	 * - Other port is in diagnostic mode
420fe56b9e6SYuval Mintz 	 * - Previously loaded function on the engine is not compliant with
421fe56b9e6SYuval Mintz 	 *   the requester.
422fe56b9e6SYuval Mintz 	 * - MFW cannot cope with the requester's DRV_MFW_HSI_VERSION.
423fe56b9e6SYuval Mintz 	 *      -
424fe56b9e6SYuval Mintz 	 */
425fe56b9e6SYuval Mintz 	if (!(*p_load_code) ||
426fe56b9e6SYuval Mintz 	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_HSI) ||
427fe56b9e6SYuval Mintz 	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_PDA) ||
428fe56b9e6SYuval Mintz 	    ((*p_load_code) == FW_MSG_CODE_DRV_LOAD_REFUSED_DIAG)) {
429fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "MCP refused load request, aborting\n");
430fe56b9e6SYuval Mintz 		return -EBUSY;
431fe56b9e6SYuval Mintz 	}
432fe56b9e6SYuval Mintz 
433fe56b9e6SYuval Mintz 	return 0;
434fe56b9e6SYuval Mintz }
435fe56b9e6SYuval Mintz 
4360b55e27dSYuval Mintz static void qed_mcp_handle_vf_flr(struct qed_hwfn *p_hwfn,
4370b55e27dSYuval Mintz 				  struct qed_ptt *p_ptt)
4380b55e27dSYuval Mintz {
4390b55e27dSYuval Mintz 	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
4400b55e27dSYuval Mintz 					PUBLIC_PATH);
4410b55e27dSYuval Mintz 	u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
4420b55e27dSYuval Mintz 	u32 path_addr = SECTION_ADDR(mfw_path_offsize,
4430b55e27dSYuval Mintz 				     QED_PATH_ID(p_hwfn));
4440b55e27dSYuval Mintz 	u32 disabled_vfs[VF_MAX_STATIC / 32];
4450b55e27dSYuval Mintz 	int i;
4460b55e27dSYuval Mintz 
4470b55e27dSYuval Mintz 	DP_VERBOSE(p_hwfn,
4480b55e27dSYuval Mintz 		   QED_MSG_SP,
4490b55e27dSYuval Mintz 		   "Reading Disabled VF information from [offset %08x], path_addr %08x\n",
4500b55e27dSYuval Mintz 		   mfw_path_offsize, path_addr);
4510b55e27dSYuval Mintz 
4520b55e27dSYuval Mintz 	for (i = 0; i < (VF_MAX_STATIC / 32); i++) {
4530b55e27dSYuval Mintz 		disabled_vfs[i] = qed_rd(p_hwfn, p_ptt,
4540b55e27dSYuval Mintz 					 path_addr +
4550b55e27dSYuval Mintz 					 offsetof(struct public_path,
4560b55e27dSYuval Mintz 						  mcp_vf_disabled) +
4570b55e27dSYuval Mintz 					 sizeof(u32) * i);
4580b55e27dSYuval Mintz 		DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
4590b55e27dSYuval Mintz 			   "FLR-ed VFs [%08x,...,%08x] - %08x\n",
4600b55e27dSYuval Mintz 			   i * 32, (i + 1) * 32 - 1, disabled_vfs[i]);
4610b55e27dSYuval Mintz 	}
4620b55e27dSYuval Mintz 
4630b55e27dSYuval Mintz 	if (qed_iov_mark_vf_flr(p_hwfn, disabled_vfs))
4640b55e27dSYuval Mintz 		qed_schedule_iov(p_hwfn, QED_IOV_WQ_FLR_FLAG);
4650b55e27dSYuval Mintz }
4660b55e27dSYuval Mintz 
4670b55e27dSYuval Mintz int qed_mcp_ack_vf_flr(struct qed_hwfn *p_hwfn,
4680b55e27dSYuval Mintz 		       struct qed_ptt *p_ptt, u32 *vfs_to_ack)
4690b55e27dSYuval Mintz {
4700b55e27dSYuval Mintz 	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
4710b55e27dSYuval Mintz 					PUBLIC_FUNC);
4720b55e27dSYuval Mintz 	u32 mfw_func_offsize = qed_rd(p_hwfn, p_ptt, addr);
4730b55e27dSYuval Mintz 	u32 func_addr = SECTION_ADDR(mfw_func_offsize,
4740b55e27dSYuval Mintz 				     MCP_PF_ID(p_hwfn));
4750b55e27dSYuval Mintz 	struct qed_mcp_mb_params mb_params;
4760b55e27dSYuval Mintz 	union drv_union_data union_data;
4770b55e27dSYuval Mintz 	int rc;
4780b55e27dSYuval Mintz 	int i;
4790b55e27dSYuval Mintz 
4800b55e27dSYuval Mintz 	for (i = 0; i < (VF_MAX_STATIC / 32); i++)
4810b55e27dSYuval Mintz 		DP_VERBOSE(p_hwfn, (QED_MSG_SP | QED_MSG_IOV),
4820b55e27dSYuval Mintz 			   "Acking VFs [%08x,...,%08x] - %08x\n",
4830b55e27dSYuval Mintz 			   i * 32, (i + 1) * 32 - 1, vfs_to_ack[i]);
4840b55e27dSYuval Mintz 
4850b55e27dSYuval Mintz 	memset(&mb_params, 0, sizeof(mb_params));
4860b55e27dSYuval Mintz 	mb_params.cmd = DRV_MSG_CODE_VF_DISABLED_DONE;
4870b55e27dSYuval Mintz 	memcpy(&union_data.ack_vf_disabled, vfs_to_ack, VF_MAX_STATIC / 8);
4880b55e27dSYuval Mintz 	mb_params.p_data_src = &union_data;
4890b55e27dSYuval Mintz 	rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
4900b55e27dSYuval Mintz 	if (rc) {
4910b55e27dSYuval Mintz 		DP_NOTICE(p_hwfn, "Failed to pass ACK for VF flr to MFW\n");
4920b55e27dSYuval Mintz 		return -EBUSY;
4930b55e27dSYuval Mintz 	}
4940b55e27dSYuval Mintz 
4950b55e27dSYuval Mintz 	/* Clear the ACK bits */
4960b55e27dSYuval Mintz 	for (i = 0; i < (VF_MAX_STATIC / 32); i++)
4970b55e27dSYuval Mintz 		qed_wr(p_hwfn, p_ptt,
4980b55e27dSYuval Mintz 		       func_addr +
4990b55e27dSYuval Mintz 		       offsetof(struct public_func, drv_ack_vf_disabled) +
5000b55e27dSYuval Mintz 		       i * sizeof(u32), 0);
5010b55e27dSYuval Mintz 
5020b55e27dSYuval Mintz 	return rc;
5030b55e27dSYuval Mintz }
5040b55e27dSYuval Mintz 
505334c03b5SZvi Nachmani static void qed_mcp_handle_transceiver_change(struct qed_hwfn *p_hwfn,
506334c03b5SZvi Nachmani 					      struct qed_ptt *p_ptt)
507334c03b5SZvi Nachmani {
508334c03b5SZvi Nachmani 	u32 transceiver_state;
509334c03b5SZvi Nachmani 
510334c03b5SZvi Nachmani 	transceiver_state = qed_rd(p_hwfn, p_ptt,
511334c03b5SZvi Nachmani 				   p_hwfn->mcp_info->port_addr +
512334c03b5SZvi Nachmani 				   offsetof(struct public_port,
513334c03b5SZvi Nachmani 					    transceiver_data));
514334c03b5SZvi Nachmani 
515334c03b5SZvi Nachmani 	DP_VERBOSE(p_hwfn,
516334c03b5SZvi Nachmani 		   (NETIF_MSG_HW | QED_MSG_SP),
517334c03b5SZvi Nachmani 		   "Received transceiver state update [0x%08x] from mfw [Addr 0x%x]\n",
518334c03b5SZvi Nachmani 		   transceiver_state,
519334c03b5SZvi Nachmani 		   (u32)(p_hwfn->mcp_info->port_addr +
5201a635e48SYuval Mintz 			  offsetof(struct public_port, transceiver_data)));
521334c03b5SZvi Nachmani 
522334c03b5SZvi Nachmani 	transceiver_state = GET_FIELD(transceiver_state,
523351a4dedSYuval Mintz 				      ETH_TRANSCEIVER_STATE);
524334c03b5SZvi Nachmani 
525351a4dedSYuval Mintz 	if (transceiver_state == ETH_TRANSCEIVER_STATE_PRESENT)
526334c03b5SZvi Nachmani 		DP_NOTICE(p_hwfn, "Transceiver is present.\n");
527334c03b5SZvi Nachmani 	else
528334c03b5SZvi Nachmani 		DP_NOTICE(p_hwfn, "Transceiver is unplugged.\n");
529334c03b5SZvi Nachmani }
530334c03b5SZvi Nachmani 
531cc875c2eSYuval Mintz static void qed_mcp_handle_link_change(struct qed_hwfn *p_hwfn,
5321a635e48SYuval Mintz 				       struct qed_ptt *p_ptt, bool b_reset)
533cc875c2eSYuval Mintz {
534cc875c2eSYuval Mintz 	struct qed_mcp_link_state *p_link;
535a64b02d5SManish Chopra 	u8 max_bw, min_bw;
536cc875c2eSYuval Mintz 	u32 status = 0;
537cc875c2eSYuval Mintz 
538cc875c2eSYuval Mintz 	p_link = &p_hwfn->mcp_info->link_output;
539cc875c2eSYuval Mintz 	memset(p_link, 0, sizeof(*p_link));
540cc875c2eSYuval Mintz 	if (!b_reset) {
541cc875c2eSYuval Mintz 		status = qed_rd(p_hwfn, p_ptt,
542cc875c2eSYuval Mintz 				p_hwfn->mcp_info->port_addr +
543cc875c2eSYuval Mintz 				offsetof(struct public_port, link_status));
544cc875c2eSYuval Mintz 		DP_VERBOSE(p_hwfn, (NETIF_MSG_LINK | QED_MSG_SP),
545cc875c2eSYuval Mintz 			   "Received link update [0x%08x] from mfw [Addr 0x%x]\n",
546cc875c2eSYuval Mintz 			   status,
547cc875c2eSYuval Mintz 			   (u32)(p_hwfn->mcp_info->port_addr +
5481a635e48SYuval Mintz 				 offsetof(struct public_port, link_status)));
549cc875c2eSYuval Mintz 	} else {
550cc875c2eSYuval Mintz 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
551cc875c2eSYuval Mintz 			   "Resetting link indications\n");
552cc875c2eSYuval Mintz 		return;
553cc875c2eSYuval Mintz 	}
554cc875c2eSYuval Mintz 
555fc916ff2SSudarsana Reddy Kalluru 	if (p_hwfn->b_drv_link_init)
556cc875c2eSYuval Mintz 		p_link->link_up = !!(status & LINK_STATUS_LINK_UP);
557fc916ff2SSudarsana Reddy Kalluru 	else
558fc916ff2SSudarsana Reddy Kalluru 		p_link->link_up = false;
559cc875c2eSYuval Mintz 
560cc875c2eSYuval Mintz 	p_link->full_duplex = true;
561cc875c2eSYuval Mintz 	switch ((status & LINK_STATUS_SPEED_AND_DUPLEX_MASK)) {
562cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_100G:
563cc875c2eSYuval Mintz 		p_link->speed = 100000;
564cc875c2eSYuval Mintz 		break;
565cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_50G:
566cc875c2eSYuval Mintz 		p_link->speed = 50000;
567cc875c2eSYuval Mintz 		break;
568cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_40G:
569cc875c2eSYuval Mintz 		p_link->speed = 40000;
570cc875c2eSYuval Mintz 		break;
571cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_25G:
572cc875c2eSYuval Mintz 		p_link->speed = 25000;
573cc875c2eSYuval Mintz 		break;
574cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_20G:
575cc875c2eSYuval Mintz 		p_link->speed = 20000;
576cc875c2eSYuval Mintz 		break;
577cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_10G:
578cc875c2eSYuval Mintz 		p_link->speed = 10000;
579cc875c2eSYuval Mintz 		break;
580cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_1000THD:
581cc875c2eSYuval Mintz 		p_link->full_duplex = false;
582cc875c2eSYuval Mintz 	/* Fall-through */
583cc875c2eSYuval Mintz 	case LINK_STATUS_SPEED_AND_DUPLEX_1000TFD:
584cc875c2eSYuval Mintz 		p_link->speed = 1000;
585cc875c2eSYuval Mintz 		break;
586cc875c2eSYuval Mintz 	default:
587cc875c2eSYuval Mintz 		p_link->speed = 0;
588cc875c2eSYuval Mintz 	}
589cc875c2eSYuval Mintz 
5904b01e519SManish Chopra 	if (p_link->link_up && p_link->speed)
5914b01e519SManish Chopra 		p_link->line_speed = p_link->speed;
5924b01e519SManish Chopra 	else
5934b01e519SManish Chopra 		p_link->line_speed = 0;
5944b01e519SManish Chopra 
5954b01e519SManish Chopra 	max_bw = p_hwfn->mcp_info->func_info.bandwidth_max;
596a64b02d5SManish Chopra 	min_bw = p_hwfn->mcp_info->func_info.bandwidth_min;
5974b01e519SManish Chopra 
598a64b02d5SManish Chopra 	/* Max bandwidth configuration */
5994b01e519SManish Chopra 	__qed_configure_pf_max_bandwidth(p_hwfn, p_ptt, p_link, max_bw);
600cc875c2eSYuval Mintz 
601a64b02d5SManish Chopra 	/* Min bandwidth configuration */
602a64b02d5SManish Chopra 	__qed_configure_pf_min_bandwidth(p_hwfn, p_ptt, p_link, min_bw);
603a64b02d5SManish Chopra 	qed_configure_vp_wfq_on_link_change(p_hwfn->cdev, p_link->min_pf_rate);
604a64b02d5SManish Chopra 
605cc875c2eSYuval Mintz 	p_link->an = !!(status & LINK_STATUS_AUTO_NEGOTIATE_ENABLED);
606cc875c2eSYuval Mintz 	p_link->an_complete = !!(status &
607cc875c2eSYuval Mintz 				 LINK_STATUS_AUTO_NEGOTIATE_COMPLETE);
608cc875c2eSYuval Mintz 	p_link->parallel_detection = !!(status &
609cc875c2eSYuval Mintz 					LINK_STATUS_PARALLEL_DETECTION_USED);
610cc875c2eSYuval Mintz 	p_link->pfc_enabled = !!(status & LINK_STATUS_PFC_ENABLED);
611cc875c2eSYuval Mintz 
612cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
613cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_1000TFD_CAPABLE) ?
614cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_1G_FD : 0;
615cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
616cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_1000THD_CAPABLE) ?
617cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_1G_HD : 0;
618cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
619cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_10G_CAPABLE) ?
620cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_10G : 0;
621cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
622cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_20G_CAPABLE) ?
623cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_20G : 0;
624cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
625054c67d1SSudarsana Reddy Kalluru 		(status & LINK_STATUS_LINK_PARTNER_25G_CAPABLE) ?
626054c67d1SSudarsana Reddy Kalluru 		QED_LINK_PARTNER_SPEED_25G : 0;
627054c67d1SSudarsana Reddy Kalluru 	p_link->partner_adv_speed |=
628cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_40G_CAPABLE) ?
629cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_40G : 0;
630cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
631cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_50G_CAPABLE) ?
632cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_50G : 0;
633cc875c2eSYuval Mintz 	p_link->partner_adv_speed |=
634cc875c2eSYuval Mintz 		(status & LINK_STATUS_LINK_PARTNER_100G_CAPABLE) ?
635cc875c2eSYuval Mintz 		QED_LINK_PARTNER_SPEED_100G : 0;
636cc875c2eSYuval Mintz 
637cc875c2eSYuval Mintz 	p_link->partner_tx_flow_ctrl_en =
638cc875c2eSYuval Mintz 		!!(status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED);
639cc875c2eSYuval Mintz 	p_link->partner_rx_flow_ctrl_en =
640cc875c2eSYuval Mintz 		!!(status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED);
641cc875c2eSYuval Mintz 
642cc875c2eSYuval Mintz 	switch (status & LINK_STATUS_LINK_PARTNER_FLOW_CONTROL_MASK) {
643cc875c2eSYuval Mintz 	case LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE:
644cc875c2eSYuval Mintz 		p_link->partner_adv_pause = QED_LINK_PARTNER_SYMMETRIC_PAUSE;
645cc875c2eSYuval Mintz 		break;
646cc875c2eSYuval Mintz 	case LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE:
647cc875c2eSYuval Mintz 		p_link->partner_adv_pause = QED_LINK_PARTNER_ASYMMETRIC_PAUSE;
648cc875c2eSYuval Mintz 		break;
649cc875c2eSYuval Mintz 	case LINK_STATUS_LINK_PARTNER_BOTH_PAUSE:
650cc875c2eSYuval Mintz 		p_link->partner_adv_pause = QED_LINK_PARTNER_BOTH_PAUSE;
651cc875c2eSYuval Mintz 		break;
652cc875c2eSYuval Mintz 	default:
653cc875c2eSYuval Mintz 		p_link->partner_adv_pause = 0;
654cc875c2eSYuval Mintz 	}
655cc875c2eSYuval Mintz 
656cc875c2eSYuval Mintz 	p_link->sfp_tx_fault = !!(status & LINK_STATUS_SFP_TX_FAULT);
657cc875c2eSYuval Mintz 
658cc875c2eSYuval Mintz 	qed_link_update(p_hwfn);
659cc875c2eSYuval Mintz }
660cc875c2eSYuval Mintz 
661351a4dedSYuval Mintz int qed_mcp_set_link(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt, bool b_up)
662cc875c2eSYuval Mintz {
663cc875c2eSYuval Mintz 	struct qed_mcp_link_params *params = &p_hwfn->mcp_info->link_input;
6645529bad9STomer Tayar 	struct qed_mcp_mb_params mb_params;
6655529bad9STomer Tayar 	union drv_union_data union_data;
666351a4dedSYuval Mintz 	struct eth_phy_cfg *phy_cfg;
667cc875c2eSYuval Mintz 	int rc = 0;
6685529bad9STomer Tayar 	u32 cmd;
669cc875c2eSYuval Mintz 
670cc875c2eSYuval Mintz 	/* Set the shmem configuration according to params */
6715529bad9STomer Tayar 	phy_cfg = &union_data.drv_phy_cfg;
6725529bad9STomer Tayar 	memset(phy_cfg, 0, sizeof(*phy_cfg));
673cc875c2eSYuval Mintz 	cmd = b_up ? DRV_MSG_CODE_INIT_PHY : DRV_MSG_CODE_LINK_RESET;
674cc875c2eSYuval Mintz 	if (!params->speed.autoneg)
6755529bad9STomer Tayar 		phy_cfg->speed = params->speed.forced_speed;
676351a4dedSYuval Mintz 	phy_cfg->pause |= (params->pause.autoneg) ? ETH_PAUSE_AUTONEG : 0;
677351a4dedSYuval Mintz 	phy_cfg->pause |= (params->pause.forced_rx) ? ETH_PAUSE_RX : 0;
678351a4dedSYuval Mintz 	phy_cfg->pause |= (params->pause.forced_tx) ? ETH_PAUSE_TX : 0;
6795529bad9STomer Tayar 	phy_cfg->adv_speed = params->speed.advertised_speeds;
6805529bad9STomer Tayar 	phy_cfg->loopback_mode = params->loopback_mode;
681cc875c2eSYuval Mintz 
682fc916ff2SSudarsana Reddy Kalluru 	p_hwfn->b_drv_link_init = b_up;
683fc916ff2SSudarsana Reddy Kalluru 
684cc875c2eSYuval Mintz 	if (b_up) {
685cc875c2eSYuval Mintz 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
686cc875c2eSYuval Mintz 			   "Configuring Link: Speed 0x%08x, Pause 0x%08x, adv_speed 0x%08x, loopback 0x%08x, features 0x%08x\n",
6875529bad9STomer Tayar 			   phy_cfg->speed,
6885529bad9STomer Tayar 			   phy_cfg->pause,
6895529bad9STomer Tayar 			   phy_cfg->adv_speed,
6905529bad9STomer Tayar 			   phy_cfg->loopback_mode,
6915529bad9STomer Tayar 			   phy_cfg->feature_config_flags);
692cc875c2eSYuval Mintz 	} else {
693cc875c2eSYuval Mintz 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
694cc875c2eSYuval Mintz 			   "Resetting link\n");
695cc875c2eSYuval Mintz 	}
696cc875c2eSYuval Mintz 
6975529bad9STomer Tayar 	memset(&mb_params, 0, sizeof(mb_params));
6985529bad9STomer Tayar 	mb_params.cmd = cmd;
6995529bad9STomer Tayar 	mb_params.p_data_src = &union_data;
7005529bad9STomer Tayar 	rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
701cc875c2eSYuval Mintz 
702cc875c2eSYuval Mintz 	/* if mcp fails to respond we must abort */
703cc875c2eSYuval Mintz 	if (rc) {
704cc875c2eSYuval Mintz 		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
705cc875c2eSYuval Mintz 		return rc;
706cc875c2eSYuval Mintz 	}
707cc875c2eSYuval Mintz 
708cc875c2eSYuval Mintz 	/* Reset the link status if needed */
709cc875c2eSYuval Mintz 	if (!b_up)
710cc875c2eSYuval Mintz 		qed_mcp_handle_link_change(p_hwfn, p_ptt, true);
711cc875c2eSYuval Mintz 
712cc875c2eSYuval Mintz 	return 0;
713cc875c2eSYuval Mintz }
714cc875c2eSYuval Mintz 
7154b01e519SManish Chopra static void qed_read_pf_bandwidth(struct qed_hwfn *p_hwfn,
7164b01e519SManish Chopra 				  struct public_func *p_shmem_info)
7174b01e519SManish Chopra {
7184b01e519SManish Chopra 	struct qed_mcp_function_info *p_info;
7194b01e519SManish Chopra 
7204b01e519SManish Chopra 	p_info = &p_hwfn->mcp_info->func_info;
7214b01e519SManish Chopra 
7224b01e519SManish Chopra 	p_info->bandwidth_min = (p_shmem_info->config &
7234b01e519SManish Chopra 				 FUNC_MF_CFG_MIN_BW_MASK) >>
7244b01e519SManish Chopra 					FUNC_MF_CFG_MIN_BW_SHIFT;
7254b01e519SManish Chopra 	if (p_info->bandwidth_min < 1 || p_info->bandwidth_min > 100) {
7264b01e519SManish Chopra 		DP_INFO(p_hwfn,
7274b01e519SManish Chopra 			"bandwidth minimum out of bounds [%02x]. Set to 1\n",
7284b01e519SManish Chopra 			p_info->bandwidth_min);
7294b01e519SManish Chopra 		p_info->bandwidth_min = 1;
7304b01e519SManish Chopra 	}
7314b01e519SManish Chopra 
7324b01e519SManish Chopra 	p_info->bandwidth_max = (p_shmem_info->config &
7334b01e519SManish Chopra 				 FUNC_MF_CFG_MAX_BW_MASK) >>
7344b01e519SManish Chopra 					FUNC_MF_CFG_MAX_BW_SHIFT;
7354b01e519SManish Chopra 	if (p_info->bandwidth_max < 1 || p_info->bandwidth_max > 100) {
7364b01e519SManish Chopra 		DP_INFO(p_hwfn,
7374b01e519SManish Chopra 			"bandwidth maximum out of bounds [%02x]. Set to 100\n",
7384b01e519SManish Chopra 			p_info->bandwidth_max);
7394b01e519SManish Chopra 		p_info->bandwidth_max = 100;
7404b01e519SManish Chopra 	}
7414b01e519SManish Chopra }
7424b01e519SManish Chopra 
7434b01e519SManish Chopra static u32 qed_mcp_get_shmem_func(struct qed_hwfn *p_hwfn,
7444b01e519SManish Chopra 				  struct qed_ptt *p_ptt,
7451a635e48SYuval Mintz 				  struct public_func *p_data, int pfid)
7464b01e519SManish Chopra {
7474b01e519SManish Chopra 	u32 addr = SECTION_OFFSIZE_ADDR(p_hwfn->mcp_info->public_base,
7484b01e519SManish Chopra 					PUBLIC_FUNC);
7494b01e519SManish Chopra 	u32 mfw_path_offsize = qed_rd(p_hwfn, p_ptt, addr);
7504b01e519SManish Chopra 	u32 func_addr = SECTION_ADDR(mfw_path_offsize, pfid);
7514b01e519SManish Chopra 	u32 i, size;
7524b01e519SManish Chopra 
7534b01e519SManish Chopra 	memset(p_data, 0, sizeof(*p_data));
7544b01e519SManish Chopra 
7551a635e48SYuval Mintz 	size = min_t(u32, sizeof(*p_data), QED_SECTION_SIZE(mfw_path_offsize));
7564b01e519SManish Chopra 	for (i = 0; i < size / sizeof(u32); i++)
7574b01e519SManish Chopra 		((u32 *)p_data)[i] = qed_rd(p_hwfn, p_ptt,
7584b01e519SManish Chopra 					    func_addr + (i << 2));
7594b01e519SManish Chopra 	return size;
7604b01e519SManish Chopra }
7614b01e519SManish Chopra 
762351a4dedSYuval Mintz int qed_hw_init_first_eth(struct qed_hwfn *p_hwfn,
763351a4dedSYuval Mintz 			  struct qed_ptt *p_ptt, u8 *p_pf)
764351a4dedSYuval Mintz {
765351a4dedSYuval Mintz 	struct public_func shmem_info;
766351a4dedSYuval Mintz 	int i;
767351a4dedSYuval Mintz 
768351a4dedSYuval Mintz 	/* Find first Ethernet interface in port */
769351a4dedSYuval Mintz 	for (i = 0; i < NUM_OF_ENG_PFS(p_hwfn->cdev);
770351a4dedSYuval Mintz 	     i += p_hwfn->cdev->num_ports_in_engines) {
771351a4dedSYuval Mintz 		qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info,
772351a4dedSYuval Mintz 				       MCP_PF_ID_BY_REL(p_hwfn, i));
773351a4dedSYuval Mintz 
774351a4dedSYuval Mintz 		if (shmem_info.config & FUNC_MF_CFG_FUNC_HIDE)
775351a4dedSYuval Mintz 			continue;
776351a4dedSYuval Mintz 
777351a4dedSYuval Mintz 		if ((shmem_info.config & FUNC_MF_CFG_PROTOCOL_MASK) ==
778351a4dedSYuval Mintz 		    FUNC_MF_CFG_PROTOCOL_ETHERNET) {
779351a4dedSYuval Mintz 			*p_pf = (u8)i;
780351a4dedSYuval Mintz 			return 0;
781351a4dedSYuval Mintz 		}
782351a4dedSYuval Mintz 	}
783351a4dedSYuval Mintz 
784351a4dedSYuval Mintz 	DP_NOTICE(p_hwfn,
785351a4dedSYuval Mintz 		  "Failed to find on port an ethernet interface in MF_SI mode\n");
786351a4dedSYuval Mintz 
787351a4dedSYuval Mintz 	return -EINVAL;
788351a4dedSYuval Mintz }
789351a4dedSYuval Mintz 
7901a635e48SYuval Mintz static void qed_mcp_update_bw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
7914b01e519SManish Chopra {
7924b01e519SManish Chopra 	struct qed_mcp_function_info *p_info;
7934b01e519SManish Chopra 	struct public_func shmem_info;
7944b01e519SManish Chopra 	u32 resp = 0, param = 0;
7954b01e519SManish Chopra 
7961a635e48SYuval Mintz 	qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
7974b01e519SManish Chopra 
7984b01e519SManish Chopra 	qed_read_pf_bandwidth(p_hwfn, &shmem_info);
7994b01e519SManish Chopra 
8004b01e519SManish Chopra 	p_info = &p_hwfn->mcp_info->func_info;
8014b01e519SManish Chopra 
802a64b02d5SManish Chopra 	qed_configure_pf_min_bandwidth(p_hwfn->cdev, p_info->bandwidth_min);
8034b01e519SManish Chopra 	qed_configure_pf_max_bandwidth(p_hwfn->cdev, p_info->bandwidth_max);
8044b01e519SManish Chopra 
8054b01e519SManish Chopra 	/* Acknowledge the MFW */
8064b01e519SManish Chopra 	qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BW_UPDATE_ACK, 0, &resp,
8074b01e519SManish Chopra 		    &param);
8084b01e519SManish Chopra }
8094b01e519SManish Chopra 
810cc875c2eSYuval Mintz int qed_mcp_handle_events(struct qed_hwfn *p_hwfn,
811cc875c2eSYuval Mintz 			  struct qed_ptt *p_ptt)
812cc875c2eSYuval Mintz {
813cc875c2eSYuval Mintz 	struct qed_mcp_info *info = p_hwfn->mcp_info;
814cc875c2eSYuval Mintz 	int rc = 0;
815cc875c2eSYuval Mintz 	bool found = false;
816cc875c2eSYuval Mintz 	u16 i;
817cc875c2eSYuval Mintz 
818cc875c2eSYuval Mintz 	DP_VERBOSE(p_hwfn, QED_MSG_SP, "Received message from MFW\n");
819cc875c2eSYuval Mintz 
820cc875c2eSYuval Mintz 	/* Read Messages from MFW */
821cc875c2eSYuval Mintz 	qed_mcp_read_mb(p_hwfn, p_ptt);
822cc875c2eSYuval Mintz 
823cc875c2eSYuval Mintz 	/* Compare current messages to old ones */
824cc875c2eSYuval Mintz 	for (i = 0; i < info->mfw_mb_length; i++) {
825cc875c2eSYuval Mintz 		if (info->mfw_mb_cur[i] == info->mfw_mb_shadow[i])
826cc875c2eSYuval Mintz 			continue;
827cc875c2eSYuval Mintz 
828cc875c2eSYuval Mintz 		found = true;
829cc875c2eSYuval Mintz 
830cc875c2eSYuval Mintz 		DP_VERBOSE(p_hwfn, NETIF_MSG_LINK,
831cc875c2eSYuval Mintz 			   "Msg [%d] - old CMD 0x%02x, new CMD 0x%02x\n",
832cc875c2eSYuval Mintz 			   i, info->mfw_mb_shadow[i], info->mfw_mb_cur[i]);
833cc875c2eSYuval Mintz 
834cc875c2eSYuval Mintz 		switch (i) {
835cc875c2eSYuval Mintz 		case MFW_DRV_MSG_LINK_CHANGE:
836cc875c2eSYuval Mintz 			qed_mcp_handle_link_change(p_hwfn, p_ptt, false);
837cc875c2eSYuval Mintz 			break;
8380b55e27dSYuval Mintz 		case MFW_DRV_MSG_VF_DISABLED:
8390b55e27dSYuval Mintz 			qed_mcp_handle_vf_flr(p_hwfn, p_ptt);
8400b55e27dSYuval Mintz 			break;
84139651abdSSudarsana Reddy Kalluru 		case MFW_DRV_MSG_LLDP_DATA_UPDATED:
84239651abdSSudarsana Reddy Kalluru 			qed_dcbx_mib_update_event(p_hwfn, p_ptt,
84339651abdSSudarsana Reddy Kalluru 						  QED_DCBX_REMOTE_LLDP_MIB);
84439651abdSSudarsana Reddy Kalluru 			break;
84539651abdSSudarsana Reddy Kalluru 		case MFW_DRV_MSG_DCBX_REMOTE_MIB_UPDATED:
84639651abdSSudarsana Reddy Kalluru 			qed_dcbx_mib_update_event(p_hwfn, p_ptt,
84739651abdSSudarsana Reddy Kalluru 						  QED_DCBX_REMOTE_MIB);
84839651abdSSudarsana Reddy Kalluru 			break;
84939651abdSSudarsana Reddy Kalluru 		case MFW_DRV_MSG_DCBX_OPERATIONAL_MIB_UPDATED:
85039651abdSSudarsana Reddy Kalluru 			qed_dcbx_mib_update_event(p_hwfn, p_ptt,
85139651abdSSudarsana Reddy Kalluru 						  QED_DCBX_OPERATIONAL_MIB);
85239651abdSSudarsana Reddy Kalluru 			break;
853334c03b5SZvi Nachmani 		case MFW_DRV_MSG_TRANSCEIVER_STATE_CHANGE:
854334c03b5SZvi Nachmani 			qed_mcp_handle_transceiver_change(p_hwfn, p_ptt);
855334c03b5SZvi Nachmani 			break;
8564b01e519SManish Chopra 		case MFW_DRV_MSG_BW_UPDATE:
8574b01e519SManish Chopra 			qed_mcp_update_bw(p_hwfn, p_ptt);
8584b01e519SManish Chopra 			break;
859cc875c2eSYuval Mintz 		default:
860cc875c2eSYuval Mintz 			DP_NOTICE(p_hwfn, "Unimplemented MFW message %d\n", i);
861cc875c2eSYuval Mintz 			rc = -EINVAL;
862cc875c2eSYuval Mintz 		}
863cc875c2eSYuval Mintz 	}
864cc875c2eSYuval Mintz 
865cc875c2eSYuval Mintz 	/* ACK everything */
866cc875c2eSYuval Mintz 	for (i = 0; i < MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length); i++) {
867cc875c2eSYuval Mintz 		__be32 val = cpu_to_be32(((u32 *)info->mfw_mb_cur)[i]);
868cc875c2eSYuval Mintz 
869cc875c2eSYuval Mintz 		/* MFW expect answer in BE, so we force write in that format */
870cc875c2eSYuval Mintz 		qed_wr(p_hwfn, p_ptt,
871cc875c2eSYuval Mintz 		       info->mfw_mb_addr + sizeof(u32) +
872cc875c2eSYuval Mintz 		       MFW_DRV_MSG_MAX_DWORDS(info->mfw_mb_length) *
873cc875c2eSYuval Mintz 		       sizeof(u32) + i * sizeof(u32),
874cc875c2eSYuval Mintz 		       (__force u32)val);
875cc875c2eSYuval Mintz 	}
876cc875c2eSYuval Mintz 
877cc875c2eSYuval Mintz 	if (!found) {
878cc875c2eSYuval Mintz 		DP_NOTICE(p_hwfn,
879cc875c2eSYuval Mintz 			  "Received an MFW message indication but no new message!\n");
880cc875c2eSYuval Mintz 		rc = -EINVAL;
881cc875c2eSYuval Mintz 	}
882cc875c2eSYuval Mintz 
883cc875c2eSYuval Mintz 	/* Copy the new mfw messages into the shadow */
884cc875c2eSYuval Mintz 	memcpy(info->mfw_mb_shadow, info->mfw_mb_cur, info->mfw_mb_length);
885cc875c2eSYuval Mintz 
886cc875c2eSYuval Mintz 	return rc;
887cc875c2eSYuval Mintz }
888cc875c2eSYuval Mintz 
8891408cc1fSYuval Mintz int qed_mcp_get_mfw_ver(struct qed_hwfn *p_hwfn,
8901408cc1fSYuval Mintz 			struct qed_ptt *p_ptt,
8911408cc1fSYuval Mintz 			u32 *p_mfw_ver, u32 *p_running_bundle_id)
892fe56b9e6SYuval Mintz {
893fe56b9e6SYuval Mintz 	u32 global_offsize;
894fe56b9e6SYuval Mintz 
8951408cc1fSYuval Mintz 	if (IS_VF(p_hwfn->cdev)) {
8961408cc1fSYuval Mintz 		if (p_hwfn->vf_iov_info) {
8971408cc1fSYuval Mintz 			struct pfvf_acquire_resp_tlv *p_resp;
8981408cc1fSYuval Mintz 
8991408cc1fSYuval Mintz 			p_resp = &p_hwfn->vf_iov_info->acquire_resp;
9001408cc1fSYuval Mintz 			*p_mfw_ver = p_resp->pfdev_info.mfw_ver;
9011408cc1fSYuval Mintz 			return 0;
9021408cc1fSYuval Mintz 		} else {
9031408cc1fSYuval Mintz 			DP_VERBOSE(p_hwfn,
9041408cc1fSYuval Mintz 				   QED_MSG_IOV,
9051408cc1fSYuval Mintz 				   "VF requested MFW version prior to ACQUIRE\n");
9061408cc1fSYuval Mintz 			return -EINVAL;
9071408cc1fSYuval Mintz 		}
9081408cc1fSYuval Mintz 	}
909fe56b9e6SYuval Mintz 
910fe56b9e6SYuval Mintz 	global_offsize = qed_rd(p_hwfn, p_ptt,
9111408cc1fSYuval Mintz 				SECTION_OFFSIZE_ADDR(p_hwfn->
9121408cc1fSYuval Mintz 						     mcp_info->public_base,
913fe56b9e6SYuval Mintz 						     PUBLIC_GLOBAL));
9141408cc1fSYuval Mintz 	*p_mfw_ver =
9151408cc1fSYuval Mintz 	    qed_rd(p_hwfn, p_ptt,
9161408cc1fSYuval Mintz 		   SECTION_ADDR(global_offsize,
9171408cc1fSYuval Mintz 				0) + offsetof(struct public_global, mfw_ver));
918fe56b9e6SYuval Mintz 
9191408cc1fSYuval Mintz 	if (p_running_bundle_id != NULL) {
9201408cc1fSYuval Mintz 		*p_running_bundle_id = qed_rd(p_hwfn, p_ptt,
9211408cc1fSYuval Mintz 					      SECTION_ADDR(global_offsize, 0) +
9221408cc1fSYuval Mintz 					      offsetof(struct public_global,
9231408cc1fSYuval Mintz 						       running_bundle_id));
9241408cc1fSYuval Mintz 	}
925fe56b9e6SYuval Mintz 
926fe56b9e6SYuval Mintz 	return 0;
927fe56b9e6SYuval Mintz }
928fe56b9e6SYuval Mintz 
9291a635e48SYuval Mintz int qed_mcp_get_media_type(struct qed_dev *cdev, u32 *p_media_type)
930cc875c2eSYuval Mintz {
931cc875c2eSYuval Mintz 	struct qed_hwfn *p_hwfn = &cdev->hwfns[0];
932cc875c2eSYuval Mintz 	struct qed_ptt  *p_ptt;
933cc875c2eSYuval Mintz 
9341408cc1fSYuval Mintz 	if (IS_VF(cdev))
9351408cc1fSYuval Mintz 		return -EINVAL;
9361408cc1fSYuval Mintz 
937cc875c2eSYuval Mintz 	if (!qed_mcp_is_init(p_hwfn)) {
938cc875c2eSYuval Mintz 		DP_NOTICE(p_hwfn, "MFW is not initialized !\n");
939cc875c2eSYuval Mintz 		return -EBUSY;
940cc875c2eSYuval Mintz 	}
941cc875c2eSYuval Mintz 
942cc875c2eSYuval Mintz 	*p_media_type = MEDIA_UNSPECIFIED;
943cc875c2eSYuval Mintz 
944cc875c2eSYuval Mintz 	p_ptt = qed_ptt_acquire(p_hwfn);
945cc875c2eSYuval Mintz 	if (!p_ptt)
946cc875c2eSYuval Mintz 		return -EBUSY;
947cc875c2eSYuval Mintz 
948cc875c2eSYuval Mintz 	*p_media_type = qed_rd(p_hwfn, p_ptt, p_hwfn->mcp_info->port_addr +
949cc875c2eSYuval Mintz 			       offsetof(struct public_port, media_type));
950cc875c2eSYuval Mintz 
951cc875c2eSYuval Mintz 	qed_ptt_release(p_hwfn, p_ptt);
952cc875c2eSYuval Mintz 
953cc875c2eSYuval Mintz 	return 0;
954cc875c2eSYuval Mintz }
955cc875c2eSYuval Mintz 
956fe56b9e6SYuval Mintz static int
957fe56b9e6SYuval Mintz qed_mcp_get_shmem_proto(struct qed_hwfn *p_hwfn,
958fe56b9e6SYuval Mintz 			struct public_func *p_info,
959fe56b9e6SYuval Mintz 			enum qed_pci_personality *p_proto)
960fe56b9e6SYuval Mintz {
961fe56b9e6SYuval Mintz 	int rc = 0;
962fe56b9e6SYuval Mintz 
963fe56b9e6SYuval Mintz 	switch (p_info->config & FUNC_MF_CFG_PROTOCOL_MASK) {
964fe56b9e6SYuval Mintz 	case FUNC_MF_CFG_PROTOCOL_ETHERNET:
965c5ac9319SYuval Mintz 		if (test_bit(QED_DEV_CAP_ROCE,
966c5ac9319SYuval Mintz 			     &p_hwfn->hw_info.device_capabilities))
967c5ac9319SYuval Mintz 			*p_proto = QED_PCI_ETH_ROCE;
968c5ac9319SYuval Mintz 		else
969fe56b9e6SYuval Mintz 			*p_proto = QED_PCI_ETH;
970fe56b9e6SYuval Mintz 		break;
971c5ac9319SYuval Mintz 	case FUNC_MF_CFG_PROTOCOL_ISCSI:
972c5ac9319SYuval Mintz 		*p_proto = QED_PCI_ISCSI;
973c5ac9319SYuval Mintz 		break;
974c5ac9319SYuval Mintz 	case FUNC_MF_CFG_PROTOCOL_ROCE:
975c5ac9319SYuval Mintz 		DP_NOTICE(p_hwfn, "RoCE personality is not a valid value!\n");
976c5ac9319SYuval Mintz 		rc = -EINVAL;
977c5ac9319SYuval Mintz 		break;
978fe56b9e6SYuval Mintz 	default:
979fe56b9e6SYuval Mintz 		rc = -EINVAL;
980fe56b9e6SYuval Mintz 	}
981fe56b9e6SYuval Mintz 
982fe56b9e6SYuval Mintz 	return rc;
983fe56b9e6SYuval Mintz }
984fe56b9e6SYuval Mintz 
985fe56b9e6SYuval Mintz int qed_mcp_fill_shmem_func_info(struct qed_hwfn *p_hwfn,
986fe56b9e6SYuval Mintz 				 struct qed_ptt *p_ptt)
987fe56b9e6SYuval Mintz {
988fe56b9e6SYuval Mintz 	struct qed_mcp_function_info *info;
989fe56b9e6SYuval Mintz 	struct public_func shmem_info;
990fe56b9e6SYuval Mintz 
9911a635e48SYuval Mintz 	qed_mcp_get_shmem_func(p_hwfn, p_ptt, &shmem_info, MCP_PF_ID(p_hwfn));
992fe56b9e6SYuval Mintz 	info = &p_hwfn->mcp_info->func_info;
993fe56b9e6SYuval Mintz 
994fe56b9e6SYuval Mintz 	info->pause_on_host = (shmem_info.config &
995fe56b9e6SYuval Mintz 			       FUNC_MF_CFG_PAUSE_ON_HOST_RING) ? 1 : 0;
996fe56b9e6SYuval Mintz 
9971a635e48SYuval Mintz 	if (qed_mcp_get_shmem_proto(p_hwfn, &shmem_info, &info->protocol)) {
998fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "Unknown personality %08x\n",
999fe56b9e6SYuval Mintz 		       (u32)(shmem_info.config & FUNC_MF_CFG_PROTOCOL_MASK));
1000fe56b9e6SYuval Mintz 		return -EINVAL;
1001fe56b9e6SYuval Mintz 	}
1002fe56b9e6SYuval Mintz 
10034b01e519SManish Chopra 	qed_read_pf_bandwidth(p_hwfn, &shmem_info);
1004fe56b9e6SYuval Mintz 
1005fe56b9e6SYuval Mintz 	if (shmem_info.mac_upper || shmem_info.mac_lower) {
1006fe56b9e6SYuval Mintz 		info->mac[0] = (u8)(shmem_info.mac_upper >> 8);
1007fe56b9e6SYuval Mintz 		info->mac[1] = (u8)(shmem_info.mac_upper);
1008fe56b9e6SYuval Mintz 		info->mac[2] = (u8)(shmem_info.mac_lower >> 24);
1009fe56b9e6SYuval Mintz 		info->mac[3] = (u8)(shmem_info.mac_lower >> 16);
1010fe56b9e6SYuval Mintz 		info->mac[4] = (u8)(shmem_info.mac_lower >> 8);
1011fe56b9e6SYuval Mintz 		info->mac[5] = (u8)(shmem_info.mac_lower);
1012fe56b9e6SYuval Mintz 	} else {
1013fe56b9e6SYuval Mintz 		DP_NOTICE(p_hwfn, "MAC is 0 in shmem\n");
1014fe56b9e6SYuval Mintz 	}
1015fe56b9e6SYuval Mintz 
1016fe56b9e6SYuval Mintz 	info->wwn_port = (u64)shmem_info.fcoe_wwn_port_name_upper |
1017fe56b9e6SYuval Mintz 			 (((u64)shmem_info.fcoe_wwn_port_name_lower) << 32);
1018fe56b9e6SYuval Mintz 	info->wwn_node = (u64)shmem_info.fcoe_wwn_node_name_upper |
1019fe56b9e6SYuval Mintz 			 (((u64)shmem_info.fcoe_wwn_node_name_lower) << 32);
1020fe56b9e6SYuval Mintz 
1021fe56b9e6SYuval Mintz 	info->ovlan = (u16)(shmem_info.ovlan_stag & FUNC_MF_CFG_OV_STAG_MASK);
1022fe56b9e6SYuval Mintz 
1023fe56b9e6SYuval Mintz 	DP_VERBOSE(p_hwfn, (QED_MSG_SP | NETIF_MSG_IFUP),
1024fe56b9e6SYuval Mintz 		   "Read configuration from shmem: pause_on_host %02x protocol %02x BW [%02x - %02x] MAC %02x:%02x:%02x:%02x:%02x:%02x wwn port %llx node %llx ovlan %04x\n",
1025fe56b9e6SYuval Mintz 		info->pause_on_host, info->protocol,
1026fe56b9e6SYuval Mintz 		info->bandwidth_min, info->bandwidth_max,
1027fe56b9e6SYuval Mintz 		info->mac[0], info->mac[1], info->mac[2],
1028fe56b9e6SYuval Mintz 		info->mac[3], info->mac[4], info->mac[5],
1029fe56b9e6SYuval Mintz 		info->wwn_port, info->wwn_node, info->ovlan);
1030fe56b9e6SYuval Mintz 
1031fe56b9e6SYuval Mintz 	return 0;
1032fe56b9e6SYuval Mintz }
1033fe56b9e6SYuval Mintz 
1034cc875c2eSYuval Mintz struct qed_mcp_link_params
1035cc875c2eSYuval Mintz *qed_mcp_get_link_params(struct qed_hwfn *p_hwfn)
1036cc875c2eSYuval Mintz {
1037cc875c2eSYuval Mintz 	if (!p_hwfn || !p_hwfn->mcp_info)
1038cc875c2eSYuval Mintz 		return NULL;
1039cc875c2eSYuval Mintz 	return &p_hwfn->mcp_info->link_input;
1040cc875c2eSYuval Mintz }
1041cc875c2eSYuval Mintz 
1042cc875c2eSYuval Mintz struct qed_mcp_link_state
1043cc875c2eSYuval Mintz *qed_mcp_get_link_state(struct qed_hwfn *p_hwfn)
1044cc875c2eSYuval Mintz {
1045cc875c2eSYuval Mintz 	if (!p_hwfn || !p_hwfn->mcp_info)
1046cc875c2eSYuval Mintz 		return NULL;
1047cc875c2eSYuval Mintz 	return &p_hwfn->mcp_info->link_output;
1048cc875c2eSYuval Mintz }
1049cc875c2eSYuval Mintz 
1050cc875c2eSYuval Mintz struct qed_mcp_link_capabilities
1051cc875c2eSYuval Mintz *qed_mcp_get_link_capabilities(struct qed_hwfn *p_hwfn)
1052cc875c2eSYuval Mintz {
1053cc875c2eSYuval Mintz 	if (!p_hwfn || !p_hwfn->mcp_info)
1054cc875c2eSYuval Mintz 		return NULL;
1055cc875c2eSYuval Mintz 	return &p_hwfn->mcp_info->link_capabilities;
1056cc875c2eSYuval Mintz }
1057cc875c2eSYuval Mintz 
10581a635e48SYuval Mintz int qed_mcp_drain(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
1059fe56b9e6SYuval Mintz {
1060fe56b9e6SYuval Mintz 	u32 resp = 0, param = 0;
1061fe56b9e6SYuval Mintz 	int rc;
1062fe56b9e6SYuval Mintz 
1063fe56b9e6SYuval Mintz 	rc = qed_mcp_cmd(p_hwfn, p_ptt,
10641a635e48SYuval Mintz 			 DRV_MSG_CODE_NIG_DRAIN, 1000, &resp, &param);
1065fe56b9e6SYuval Mintz 
1066fe56b9e6SYuval Mintz 	/* Wait for the drain to complete before returning */
10678f60bafeSYuval Mintz 	msleep(1020);
1068fe56b9e6SYuval Mintz 
1069fe56b9e6SYuval Mintz 	return rc;
1070fe56b9e6SYuval Mintz }
1071fe56b9e6SYuval Mintz 
1072cee4d264SManish Chopra int qed_mcp_get_flash_size(struct qed_hwfn *p_hwfn,
10731a635e48SYuval Mintz 			   struct qed_ptt *p_ptt, u32 *p_flash_size)
1074cee4d264SManish Chopra {
1075cee4d264SManish Chopra 	u32 flash_size;
1076cee4d264SManish Chopra 
10771408cc1fSYuval Mintz 	if (IS_VF(p_hwfn->cdev))
10781408cc1fSYuval Mintz 		return -EINVAL;
10791408cc1fSYuval Mintz 
1080cee4d264SManish Chopra 	flash_size = qed_rd(p_hwfn, p_ptt, MCP_REG_NVM_CFG4);
1081cee4d264SManish Chopra 	flash_size = (flash_size & MCP_REG_NVM_CFG4_FLASH_SIZE) >>
1082cee4d264SManish Chopra 		      MCP_REG_NVM_CFG4_FLASH_SIZE_SHIFT;
1083cee4d264SManish Chopra 	flash_size = (1 << (flash_size + MCP_BYTES_PER_MBIT_SHIFT));
1084cee4d264SManish Chopra 
1085cee4d264SManish Chopra 	*p_flash_size = flash_size;
1086cee4d264SManish Chopra 
1087cee4d264SManish Chopra 	return 0;
1088cee4d264SManish Chopra }
1089cee4d264SManish Chopra 
10901408cc1fSYuval Mintz int qed_mcp_config_vf_msix(struct qed_hwfn *p_hwfn,
10911408cc1fSYuval Mintz 			   struct qed_ptt *p_ptt, u8 vf_id, u8 num)
10921408cc1fSYuval Mintz {
10931408cc1fSYuval Mintz 	u32 resp = 0, param = 0, rc_param = 0;
10941408cc1fSYuval Mintz 	int rc;
10951408cc1fSYuval Mintz 
10961408cc1fSYuval Mintz 	/* Only Leader can configure MSIX, and need to take CMT into account */
10971408cc1fSYuval Mintz 	if (!IS_LEAD_HWFN(p_hwfn))
10981408cc1fSYuval Mintz 		return 0;
10991408cc1fSYuval Mintz 	num *= p_hwfn->cdev->num_hwfns;
11001408cc1fSYuval Mintz 
11011408cc1fSYuval Mintz 	param |= (vf_id << DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_SHIFT) &
11021408cc1fSYuval Mintz 		 DRV_MB_PARAM_CFG_VF_MSIX_VF_ID_MASK;
11031408cc1fSYuval Mintz 	param |= (num << DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_SHIFT) &
11041408cc1fSYuval Mintz 		 DRV_MB_PARAM_CFG_VF_MSIX_SB_NUM_MASK;
11051408cc1fSYuval Mintz 
11061408cc1fSYuval Mintz 	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_CFG_VF_MSIX, param,
11071408cc1fSYuval Mintz 			 &resp, &rc_param);
11081408cc1fSYuval Mintz 
11091408cc1fSYuval Mintz 	if (resp != FW_MSG_CODE_DRV_CFG_VF_MSIX_DONE) {
11101408cc1fSYuval Mintz 		DP_NOTICE(p_hwfn, "VF[%d]: MFW failed to set MSI-X\n", vf_id);
11111408cc1fSYuval Mintz 		rc = -EINVAL;
11121408cc1fSYuval Mintz 	} else {
11131408cc1fSYuval Mintz 		DP_VERBOSE(p_hwfn, QED_MSG_IOV,
11141408cc1fSYuval Mintz 			   "Requested 0x%02x MSI-x interrupts from VF 0x%02x\n",
11151408cc1fSYuval Mintz 			   num, vf_id);
11161408cc1fSYuval Mintz 	}
11171408cc1fSYuval Mintz 
11181408cc1fSYuval Mintz 	return rc;
11191408cc1fSYuval Mintz }
11201408cc1fSYuval Mintz 
1121fe56b9e6SYuval Mintz int
1122fe56b9e6SYuval Mintz qed_mcp_send_drv_version(struct qed_hwfn *p_hwfn,
1123fe56b9e6SYuval Mintz 			 struct qed_ptt *p_ptt,
1124fe56b9e6SYuval Mintz 			 struct qed_mcp_drv_version *p_ver)
1125fe56b9e6SYuval Mintz {
11265529bad9STomer Tayar 	struct drv_version_stc *p_drv_version;
11275529bad9STomer Tayar 	struct qed_mcp_mb_params mb_params;
11285529bad9STomer Tayar 	union drv_union_data union_data;
11295529bad9STomer Tayar 	__be32 val;
11305529bad9STomer Tayar 	u32 i;
11315529bad9STomer Tayar 	int rc;
1132fe56b9e6SYuval Mintz 
11335529bad9STomer Tayar 	p_drv_version = &union_data.drv_version;
11345529bad9STomer Tayar 	p_drv_version->version = p_ver->version;
11354b01e519SManish Chopra 
11365529bad9STomer Tayar 	for (i = 0; i < MCP_DRV_VER_STR_SIZE - 1; i += 4) {
11375529bad9STomer Tayar 		val = cpu_to_be32(p_ver->name[i]);
11384b01e519SManish Chopra 		*(__be32 *)&p_drv_version->name[i * sizeof(u32)] = val;
1139fe56b9e6SYuval Mintz 	}
1140fe56b9e6SYuval Mintz 
11415529bad9STomer Tayar 	memset(&mb_params, 0, sizeof(mb_params));
11425529bad9STomer Tayar 	mb_params.cmd = DRV_MSG_CODE_SET_VERSION;
11435529bad9STomer Tayar 	mb_params.p_data_src = &union_data;
11445529bad9STomer Tayar 	rc = qed_mcp_cmd_and_union(p_hwfn, p_ptt, &mb_params);
11455529bad9STomer Tayar 	if (rc)
1146fe56b9e6SYuval Mintz 		DP_ERR(p_hwfn, "MCP response failure, aborting\n");
1147fe56b9e6SYuval Mintz 
11485529bad9STomer Tayar 	return rc;
1149fe56b9e6SYuval Mintz }
115091420b83SSudarsana Kalluru 
11511a635e48SYuval Mintz int qed_mcp_set_led(struct qed_hwfn *p_hwfn,
11521a635e48SYuval Mintz 		    struct qed_ptt *p_ptt, enum qed_led_mode mode)
115391420b83SSudarsana Kalluru {
115491420b83SSudarsana Kalluru 	u32 resp = 0, param = 0, drv_mb_param;
115591420b83SSudarsana Kalluru 	int rc;
115691420b83SSudarsana Kalluru 
115791420b83SSudarsana Kalluru 	switch (mode) {
115891420b83SSudarsana Kalluru 	case QED_LED_MODE_ON:
115991420b83SSudarsana Kalluru 		drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_ON;
116091420b83SSudarsana Kalluru 		break;
116191420b83SSudarsana Kalluru 	case QED_LED_MODE_OFF:
116291420b83SSudarsana Kalluru 		drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OFF;
116391420b83SSudarsana Kalluru 		break;
116491420b83SSudarsana Kalluru 	case QED_LED_MODE_RESTORE:
116591420b83SSudarsana Kalluru 		drv_mb_param = DRV_MB_PARAM_SET_LED_MODE_OPER;
116691420b83SSudarsana Kalluru 		break;
116791420b83SSudarsana Kalluru 	default:
116891420b83SSudarsana Kalluru 		DP_NOTICE(p_hwfn, "Invalid LED mode %d\n", mode);
116991420b83SSudarsana Kalluru 		return -EINVAL;
117091420b83SSudarsana Kalluru 	}
117191420b83SSudarsana Kalluru 
117291420b83SSudarsana Kalluru 	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_SET_LED_MODE,
117391420b83SSudarsana Kalluru 			 drv_mb_param, &resp, &param);
117491420b83SSudarsana Kalluru 
117591420b83SSudarsana Kalluru 	return rc;
117691420b83SSudarsana Kalluru }
117703dc76caSSudarsana Reddy Kalluru 
117803dc76caSSudarsana Reddy Kalluru int qed_mcp_bist_register_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
117903dc76caSSudarsana Reddy Kalluru {
118003dc76caSSudarsana Reddy Kalluru 	u32 drv_mb_param = 0, rsp, param;
118103dc76caSSudarsana Reddy Kalluru 	int rc = 0;
118203dc76caSSudarsana Reddy Kalluru 
118303dc76caSSudarsana Reddy Kalluru 	drv_mb_param = (DRV_MB_PARAM_BIST_REGISTER_TEST <<
118403dc76caSSudarsana Reddy Kalluru 			DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
118503dc76caSSudarsana Reddy Kalluru 
118603dc76caSSudarsana Reddy Kalluru 	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
118703dc76caSSudarsana Reddy Kalluru 			 drv_mb_param, &rsp, &param);
118803dc76caSSudarsana Reddy Kalluru 
118903dc76caSSudarsana Reddy Kalluru 	if (rc)
119003dc76caSSudarsana Reddy Kalluru 		return rc;
119103dc76caSSudarsana Reddy Kalluru 
119203dc76caSSudarsana Reddy Kalluru 	if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
119303dc76caSSudarsana Reddy Kalluru 	    (param != DRV_MB_PARAM_BIST_RC_PASSED))
119403dc76caSSudarsana Reddy Kalluru 		rc = -EAGAIN;
119503dc76caSSudarsana Reddy Kalluru 
119603dc76caSSudarsana Reddy Kalluru 	return rc;
119703dc76caSSudarsana Reddy Kalluru }
119803dc76caSSudarsana Reddy Kalluru 
119903dc76caSSudarsana Reddy Kalluru int qed_mcp_bist_clock_test(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt)
120003dc76caSSudarsana Reddy Kalluru {
120103dc76caSSudarsana Reddy Kalluru 	u32 drv_mb_param, rsp, param;
120203dc76caSSudarsana Reddy Kalluru 	int rc = 0;
120303dc76caSSudarsana Reddy Kalluru 
120403dc76caSSudarsana Reddy Kalluru 	drv_mb_param = (DRV_MB_PARAM_BIST_CLOCK_TEST <<
120503dc76caSSudarsana Reddy Kalluru 			DRV_MB_PARAM_BIST_TEST_INDEX_SHIFT);
120603dc76caSSudarsana Reddy Kalluru 
120703dc76caSSudarsana Reddy Kalluru 	rc = qed_mcp_cmd(p_hwfn, p_ptt, DRV_MSG_CODE_BIST_TEST,
120803dc76caSSudarsana Reddy Kalluru 			 drv_mb_param, &rsp, &param);
120903dc76caSSudarsana Reddy Kalluru 
121003dc76caSSudarsana Reddy Kalluru 	if (rc)
121103dc76caSSudarsana Reddy Kalluru 		return rc;
121203dc76caSSudarsana Reddy Kalluru 
121303dc76caSSudarsana Reddy Kalluru 	if (((rsp & FW_MSG_CODE_MASK) != FW_MSG_CODE_OK) ||
121403dc76caSSudarsana Reddy Kalluru 	    (param != DRV_MB_PARAM_BIST_RC_PASSED))
121503dc76caSSudarsana Reddy Kalluru 		rc = -EAGAIN;
121603dc76caSSudarsana Reddy Kalluru 
121703dc76caSSudarsana Reddy Kalluru 	return rc;
121803dc76caSSudarsana Reddy Kalluru }
1219