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authorSathya Perla <sathyap@serverengines.com>2009-03-12 02:32:03 -0400
committerDavid S. Miller <davem@davemloft.net>2009-03-12 02:32:22 -0400
commit6b7c5b947c671a96e39f9526a5fd70c178b8dfd1 (patch)
tree6fba014e23f72f569dc3e89f3fc51c9e67c41850
parent2c5849ea38fdad477d72dcf1c8c4842db4b33aae (diff)
net: Add be2net driver.
Signed-off-by: Sathya Perla <sathyap@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat
-rw-r--r--MAINTAINERS9
-rw-r--r--drivers/net/Kconfig2
-rw-r--r--drivers/net/Makefile1
-rw-r--r--drivers/net/benet/Kconfig7
-rw-r--r--drivers/net/benet/Makefile7
-rw-r--r--drivers/net/benet/be.h327
-rw-r--r--drivers/net/benet/be_cmds.c861
-rw-r--r--drivers/net/benet/be_cmds.h688
-rw-r--r--drivers/net/benet/be_ethtool.c362
-rw-r--r--drivers/net/benet/be_hw.h211
-rw-r--r--drivers/net/benet/be_main.c1903
11 files changed, 4378 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 1c2ca1dc66f2..43934437511b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3880,6 +3880,15 @@ L: linux-ide@vger.kernel.org
3880T: git kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git 3880T: git kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev.git
3881S: Supported 3881S: Supported
3882 3882
3883SERVER ENGINES 10Gbps NIC - BladeEngine 2 DRIVER
3884P: Sathya Perla
3885M: sathyap@serverengines.com
3886P: Subbu Seetharaman
3887M: subbus@serverengines.com
3888L: netdev@vger.kernel.org
3889W: http://www.serverengines.com
3890S: Supported
3891
3883SFC NETWORK DRIVER 3892SFC NETWORK DRIVER
3884P: Steve Hodgson 3893P: Steve Hodgson
3885P: Ben Hutchings 3894P: Ben Hutchings
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 5c28b06dac6e..435e2e3a82c8 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -2630,6 +2630,8 @@ config QLGE
2630 2630
2631source "drivers/net/sfc/Kconfig" 2631source "drivers/net/sfc/Kconfig"
2632 2632
2633source "drivers/net/benet/Kconfig"
2634
2633endif # NETDEV_10000 2635endif # NETDEV_10000
2634 2636
2635source "drivers/net/tokenring/Kconfig" 2637source "drivers/net/tokenring/Kconfig"
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 6d9bba58b9a4..471baaff229f 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_GIANFAR) += gianfar_driver.o
22obj-$(CONFIG_TEHUTI) += tehuti.o 22obj-$(CONFIG_TEHUTI) += tehuti.o
23obj-$(CONFIG_ENIC) += enic/ 23obj-$(CONFIG_ENIC) += enic/
24obj-$(CONFIG_JME) += jme.o 24obj-$(CONFIG_JME) += jme.o
25obj-$(CONFIG_BE2NET) += benet/
25 26
26gianfar_driver-objs := gianfar.o \ 27gianfar_driver-objs := gianfar.o \
27 gianfar_ethtool.o \ 28 gianfar_ethtool.o \
diff --git a/drivers/net/benet/Kconfig b/drivers/net/benet/Kconfig
new file mode 100644
index 000000000000..c6934f179c09
--- /dev/null
+++ b/drivers/net/benet/Kconfig
@@ -0,0 +1,7 @@
1config BE2NET
2 tristate "ServerEngines' 10Gbps NIC - BladeEngine 2"
3 depends on PCI && INET
4 select INET_LRO
5 help
6 This driver implements the NIC functionality for ServerEngines'
7 10Gbps network adapter - BladeEngine 2.
diff --git a/drivers/net/benet/Makefile b/drivers/net/benet/Makefile
new file mode 100644
index 000000000000..a60cd8051135
--- /dev/null
+++ b/drivers/net/benet/Makefile
@@ -0,0 +1,7 @@
1#
2# Makefile to build the network driver for ServerEngine's BladeEngine.
3#
4
5obj-$(CONFIG_BE2NET) += be2net.o
6
7be2net-y := be_main.o be_cmds.o be_ethtool.o
diff --git a/drivers/net/benet/be.h b/drivers/net/benet/be.h
new file mode 100644
index 000000000000..63d593d53153
--- /dev/null
+++ b/drivers/net/benet/be.h
@@ -0,0 +1,327 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#ifndef BE_H
19#define BE_H
20
21#include <linux/pci.h>
22#include <linux/etherdevice.h>
23#include <linux/version.h>
24#include <linux/delay.h>
25#include <net/tcp.h>
26#include <net/ip.h>
27#include <net/ipv6.h>
28#include <linux/if_vlan.h>
29#include <linux/workqueue.h>
30#include <linux/interrupt.h>
31#include <linux/inet_lro.h>
32
33#include "be_hw.h"
34
35#define DRV_VER "2.0.348"
36#define DRV_NAME "be2net"
37#define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
38#define DRV_DESC BE_NAME "Driver"
39
40/* Number of bytes of an RX frame that are copied to skb->data */
41#define BE_HDR_LEN 64
42#define BE_MAX_JUMBO_FRAME_SIZE 9018
43#define BE_MIN_MTU 256
44
45#define BE_NUM_VLANS_SUPPORTED 64
46#define BE_MAX_EQD 96
47#define BE_MAX_TX_FRAG_COUNT 30
48
49#define EVNT_Q_LEN 1024
50#define TX_Q_LEN 2048
51#define TX_CQ_LEN 1024
52#define RX_Q_LEN 1024 /* Does not support any other value */
53#define RX_CQ_LEN 1024
54#define MCC_Q_LEN 64 /* total size not to exceed 8 pages */
55#define MCC_CQ_LEN 256
56
57#define BE_NAPI_WEIGHT 64
58#define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
59#define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
60
61#define BE_MAX_LRO_DESCRIPTORS 16
62#define BE_MAX_FRAGS_PER_FRAME 16
63
64struct be_dma_mem {
65 void *va;
66 dma_addr_t dma;
67 u32 size;
68};
69
70struct be_queue_info {
71 struct be_dma_mem dma_mem;
72 u16 len;
73 u16 entry_size; /* Size of an element in the queue */
74 u16 id;
75 u16 tail, head;
76 bool created;
77 atomic_t used; /* Number of valid elements in the queue */
78};
79
80struct be_ctrl_info {
81 u8 __iomem *csr;
82 u8 __iomem *db; /* Door Bell */
83 u8 __iomem *pcicfg; /* PCI config space */
84 int pci_func;
85
86 /* Mbox used for cmd request/response */
87 spinlock_t cmd_lock; /* For serializing cmds to BE card */
88 struct be_dma_mem mbox_mem;
89 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
90 * is stored for freeing purpose */
91 struct be_dma_mem mbox_mem_alloced;
92};
93
94#include "be_cmds.h"
95
96struct be_drvr_stats {
97 u32 be_tx_reqs; /* number of TX requests initiated */
98 u32 be_tx_stops; /* number of times TX Q was stopped */
99 u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */
100 u32 be_tx_wrbs; /* number of tx WRBs used */
101 u32 be_tx_events; /* number of tx completion events */
102 u32 be_tx_compl; /* number of tx completion entries processed */
103 u64 be_tx_jiffies;
104 ulong be_tx_bytes;
105 ulong be_tx_bytes_prev;
106 u32 be_tx_rate;
107
108 u32 cache_barrier[16];
109
110 u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */
111 u32 be_polls; /* number of times NAPI called poll function */
112 u32 be_rx_events; /* number of ucast rx completion events */
113 u32 be_rx_compl; /* number of rx completion entries processed */
114 u32 be_lro_hgram_data[8]; /* histogram of LRO data packets */
115 u32 be_lro_hgram_ack[8]; /* histogram of LRO ACKs */
116 u64 be_rx_jiffies;
117 ulong be_rx_bytes;
118 ulong be_rx_bytes_prev;
119 u32 be_rx_rate;
120 /* number of non ether type II frames dropped where
121 * frame len > length field of Mac Hdr */
122 u32 be_802_3_dropped_frames;
123 /* number of non ether type II frames malformed where
124 * in frame len < length field of Mac Hdr */
125 u32 be_802_3_malformed_frames;
126 u32 be_rxcp_err; /* Num rx completion entries w/ err set. */
127 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
128 u32 be_rx_frags;
129 u32 be_prev_rx_frags;
130 u32 be_rx_fps; /* Rx frags per second */
131};
132
133struct be_stats_obj {
134 struct be_drvr_stats drvr_stats;
135 struct net_device_stats net_stats;
136 struct be_dma_mem cmd;
137};
138
139struct be_eq_obj {
140 struct be_queue_info q;
141 char desc[32];
142
143 /* Adaptive interrupt coalescing (AIC) info */
144 bool enable_aic;
145 u16 min_eqd; /* in usecs */
146 u16 max_eqd; /* in usecs */
147 u16 cur_eqd; /* in usecs */
148
149 struct napi_struct napi;
150};
151
152struct be_tx_obj {
153 struct be_queue_info q;
154 struct be_queue_info cq;
155 /* Remember the skbs that were transmitted */
156 struct sk_buff *sent_skb_list[TX_Q_LEN];
157};
158
159/* Struct to remember the pages posted for rx frags */
160struct be_rx_page_info {
161 struct page *page;
162 dma_addr_t bus;
163 u16 page_offset;
164 bool last_page_user;
165};
166
167struct be_rx_obj {
168 struct be_queue_info q;
169 struct be_queue_info cq;
170 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
171 struct net_lro_mgr lro_mgr;
172 struct net_lro_desc lro_desc[BE_MAX_LRO_DESCRIPTORS];
173};
174
175#define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */
176struct be_adapter {
177 struct pci_dev *pdev;
178 struct net_device *netdev;
179
180 /* Mbox, pci config, csr address information */
181 struct be_ctrl_info ctrl;
182
183 struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS];
184 bool msix_enabled;
185 bool isr_registered;
186
187 /* TX Rings */
188 struct be_eq_obj tx_eq;
189 struct be_tx_obj tx_obj;
190
191 u32 cache_line_break[8];
192
193 /* Rx rings */
194 struct be_eq_obj rx_eq;
195 struct be_rx_obj rx_obj;
196 u32 big_page_size; /* Compounded page size shared by rx wrbs */
197
198 struct vlan_group *vlan_grp;
199 u16 num_vlans;
200 u8 vlan_tag[VLAN_GROUP_ARRAY_LEN];
201
202 struct be_stats_obj stats;
203 /* Work queue used to perform periodic tasks like getting statistics */
204 struct delayed_work work;
205
206 /* Ethtool knobs and info */
207 bool rx_csum; /* BE card must perform rx-checksumming */
208 u32 max_rx_coal;
209 char fw_ver[FW_VER_LEN];
210 u32 if_handle; /* Used to configure filtering */
211 u32 pmac_id; /* MAC addr handle used by BE card */
212
213 struct be_link_info link;
214 u32 port_num;
215};
216
217extern struct ethtool_ops be_ethtool_ops;
218
219#define drvr_stats(adapter) (&adapter->stats.drvr_stats)
220
221#define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
222
223static inline u32 MODULO(u16 val, u16 limit)
224{
225 BUG_ON(limit & (limit - 1));
226 return val & (limit - 1);
227}
228
229static inline void index_adv(u16 *index, u16 val, u16 limit)
230{
231 *index = MODULO((*index + val), limit);
232}
233
234static inline void index_inc(u16 *index, u16 limit)
235{
236 *index = MODULO((*index + 1), limit);
237}
238
239#define PAGE_SHIFT_4K 12
240#define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
241
242/* Returns number of pages spanned by the data starting at the given addr */
243#define PAGES_4K_SPANNED(_address, size) \
244 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
245 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
246
247/* Byte offset into the page corresponding to given address */
248#define OFFSET_IN_PAGE(addr) \
249 ((size_t)(addr) & (PAGE_SIZE_4K-1))
250
251/* Returns bit offset within a DWORD of a bitfield */
252#define AMAP_BIT_OFFSET(_struct, field) \
253 (((size_t)&(((_struct *)0)->field))%32)
254
255/* Returns the bit mask of the field that is NOT shifted into location. */
256static inline u32 amap_mask(u32 bitsize)
257{
258 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
259}
260
261static inline void
262amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
263{
264 u32 *dw = (u32 *) ptr + dw_offset;
265 *dw &= ~(mask << offset);
266 *dw |= (mask & value) << offset;
267}
268
269#define AMAP_SET_BITS(_struct, field, ptr, val) \
270 amap_set(ptr, \
271 offsetof(_struct, field)/32, \
272 amap_mask(sizeof(((_struct *)0)->field)), \
273 AMAP_BIT_OFFSET(_struct, field), \
274 val)
275
276static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
277{
278 u32 *dw = (u32 *) ptr;
279 return mask & (*(dw + dw_offset) >> offset);
280}
281
282#define AMAP_GET_BITS(_struct, field, ptr) \
283 amap_get(ptr, \
284 offsetof(_struct, field)/32, \
285 amap_mask(sizeof(((_struct *)0)->field)), \
286 AMAP_BIT_OFFSET(_struct, field))
287
288#define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
289#define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
290static inline void swap_dws(void *wrb, int len)
291{
292#ifdef __BIG_ENDIAN
293 u32 *dw = wrb;
294 BUG_ON(len % 4);
295 do {
296 *dw = cpu_to_le32(*dw);
297 dw++;
298 len -= 4;
299 } while (len);
300#endif /* __BIG_ENDIAN */
301}
302
303static inline u8 is_tcp_pkt(struct sk_buff *skb)
304{
305 u8 val = 0;
306
307 if (ip_hdr(skb)->version == 4)
308 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
309 else if (ip_hdr(skb)->version == 6)
310 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
311
312 return val;
313}
314
315static inline u8 is_udp_pkt(struct sk_buff *skb)
316{
317 u8 val = 0;
318
319 if (ip_hdr(skb)->version == 4)
320 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
321 else if (ip_hdr(skb)->version == 6)
322 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
323
324 return val;
325}
326
327#endif /* BE_H */
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
new file mode 100644
index 000000000000..d444aed962bc
--- /dev/null
+++ b/drivers/net/benet/be_cmds.c
@@ -0,0 +1,861 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#include "be.h"
19
20static int be_mbox_db_ready_wait(void __iomem *db)
21{
22 int cnt = 0, wait = 5;
23 u32 ready;
24
25 do {
26 ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
27 if (ready)
28 break;
29
30 if (cnt > 200000) {
31 printk(KERN_WARNING DRV_NAME
32 ": mbox_db poll timed out\n");
33 return -1;
34 }
35
36 if (cnt > 50)
37 wait = 200;
38 cnt += wait;
39 udelay(wait);
40 } while (true);
41
42 return 0;
43}
44
45/*
46 * Insert the mailbox address into the doorbell in two steps
47 */
48static int be_mbox_db_ring(struct be_ctrl_info *ctrl)
49{
50 int status;
51 u16 compl_status, extd_status;
52 u32 val = 0;
53 void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
54 struct be_dma_mem *mbox_mem = &ctrl->mbox_mem;
55 struct be_mcc_mailbox *mbox = mbox_mem->va;
56 struct be_mcc_cq_entry *cqe = &mbox->cqe;
57
58 memset(cqe, 0, sizeof(*cqe));
59
60 val &= ~MPU_MAILBOX_DB_RDY_MASK;
61 val |= MPU_MAILBOX_DB_HI_MASK;
62 /* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */
63 val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2;
64 iowrite32(val, db);
65
66 /* wait for ready to be set */
67 status = be_mbox_db_ready_wait(db);
68 if (status != 0)
69 return status;
70
71 val = 0;
72 val &= ~MPU_MAILBOX_DB_RDY_MASK;
73 val &= ~MPU_MAILBOX_DB_HI_MASK;
74 /* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */
75 val |= (u32)(mbox_mem->dma >> 4) << 2;
76 iowrite32(val, db);
77
78 status = be_mbox_db_ready_wait(db);
79 if (status != 0)
80 return status;
81
82 /* compl entry has been made now */
83 be_dws_le_to_cpu(cqe, sizeof(*cqe));
84 if (!(cqe->flags & CQE_FLAGS_VALID_MASK)) {
85 printk(KERN_WARNING DRV_NAME ": ERROR invalid mbox compl\n");
86 return -1;
87 }
88
89 compl_status = (cqe->status >> CQE_STATUS_COMPL_SHIFT) &
90 CQE_STATUS_COMPL_MASK;
91 if (compl_status != MCC_STATUS_SUCCESS) {
92 extd_status = (cqe->status >> CQE_STATUS_EXTD_SHIFT) &
93 CQE_STATUS_EXTD_MASK;
94 printk(KERN_WARNING DRV_NAME
95 ": ERROR in cmd compl. status(compl/extd)=%d/%d\n",
96 compl_status, extd_status);
97 }
98
99 return compl_status;
100}
101
102static int be_POST_stage_get(struct be_ctrl_info *ctrl, u16 *stage)
103{
104 u32 sem = ioread32(ctrl->csr + MPU_EP_SEMAPHORE_OFFSET);
105
106 *stage = sem & EP_SEMAPHORE_POST_STAGE_MASK;
107 if ((sem >> EP_SEMAPHORE_POST_ERR_SHIFT) & EP_SEMAPHORE_POST_ERR_MASK)
108 return -1;
109 else
110 return 0;
111}
112
113static int be_POST_stage_poll(struct be_ctrl_info *ctrl, u16 poll_stage)
114{
115 u16 stage, cnt, error;
116 for (cnt = 0; cnt < 5000; cnt++) {
117 error = be_POST_stage_get(ctrl, &stage);
118 if (error)
119 return -1;
120
121 if (stage == poll_stage)
122 break;
123 udelay(1000);
124 }
125 if (stage != poll_stage)
126 return -1;
127 return 0;
128}
129
130
131int be_cmd_POST(struct be_ctrl_info *ctrl)
132{
133 u16 stage, error;
134
135 error = be_POST_stage_get(ctrl, &stage);
136 if (error)
137 goto err;
138
139 if (stage == POST_STAGE_ARMFW_RDY)
140 return 0;
141
142 if (stage != POST_STAGE_AWAITING_HOST_RDY)
143 goto err;
144
145 /* On awaiting host rdy, reset and again poll on awaiting host rdy */
146 iowrite32(POST_STAGE_BE_RESET, ctrl->csr + MPU_EP_SEMAPHORE_OFFSET);
147 error = be_POST_stage_poll(ctrl, POST_STAGE_AWAITING_HOST_RDY);
148 if (error)
149 goto err;
150
151 /* Now kickoff POST and poll on armfw ready */
152 iowrite32(POST_STAGE_HOST_RDY, ctrl->csr + MPU_EP_SEMAPHORE_OFFSET);
153 error = be_POST_stage_poll(ctrl, POST_STAGE_ARMFW_RDY);
154 if (error)
155 goto err;
156
157 return 0;
158err:
159 printk(KERN_WARNING DRV_NAME ": ERROR, stage=%d\n", stage);
160 return -1;
161}
162
163static inline void *embedded_payload(struct be_mcc_wrb *wrb)
164{
165 return wrb->payload.embedded_payload;
166}
167
168static inline struct be_sge *nonembedded_sgl(struct be_mcc_wrb *wrb)
169{
170 return &wrb->payload.sgl[0];
171}
172
173/* Don't touch the hdr after it's prepared */
174static void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len,
175 bool embedded, u8 sge_cnt)
176{
177 if (embedded)
178 wrb->embedded |= MCC_WRB_EMBEDDED_MASK;
179 else
180 wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) <<
181 MCC_WRB_SGE_CNT_SHIFT;
182 wrb->payload_length = payload_len;
183 be_dws_cpu_to_le(wrb, 20);
184}
185
186/* Don't touch the hdr after it's prepared */
187static void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
188 u8 subsystem, u8 opcode, int cmd_len)
189{
190 req_hdr->opcode = opcode;
191 req_hdr->subsystem = subsystem;
192 req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
193}
194
195static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,
196 struct be_dma_mem *mem)
197{
198 int i, buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages);
199 u64 dma = (u64)mem->dma;
200
201 for (i = 0; i < buf_pages; i++) {
202 pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF);
203 pages[i].hi = cpu_to_le32(upper_32_bits(dma));
204 dma += PAGE_SIZE_4K;
205 }
206}
207
208/* Converts interrupt delay in microseconds to multiplier value */
209static u32 eq_delay_to_mult(u32 usec_delay)
210{
211#define MAX_INTR_RATE 651042
212 const u32 round = 10;
213 u32 multiplier;
214
215 if (usec_delay == 0)
216 multiplier = 0;
217 else {
218 u32 interrupt_rate = 1000000 / usec_delay;
219 /* Max delay, corresponding to the lowest interrupt rate */
220 if (interrupt_rate == 0)
221 multiplier = 1023;
222 else {
223 multiplier = (MAX_INTR_RATE - interrupt_rate) * round;
224 multiplier /= interrupt_rate;
225 /* Round the multiplier to the closest value.*/
226 multiplier = (multiplier + round/2) / round;
227 multiplier = min(multiplier, (u32)1023);
228 }
229 }
230 return multiplier;
231}
232
233static inline struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem)
234{
235 return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb;
236}
237
238int be_cmd_eq_create(struct be_ctrl_info *ctrl,
239 struct be_queue_info *eq, int eq_delay)
240{
241 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
242 struct be_cmd_req_eq_create *req = embedded_payload(wrb);
243 struct be_cmd_resp_eq_create *resp = embedded_payload(wrb);
244 struct be_dma_mem *q_mem = &eq->dma_mem;
245 int status;
246
247 spin_lock(&ctrl->cmd_lock);
248 memset(wrb, 0, sizeof(*wrb));
249
250 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
251
252 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
253 OPCODE_COMMON_EQ_CREATE, sizeof(*req));
254
255 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
256
257 AMAP_SET_BITS(struct amap_eq_context, func, req->context,
258 ctrl->pci_func);
259 AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1);
260 /* 4byte eqe*/
261 AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0);
262 AMAP_SET_BITS(struct amap_eq_context, count, req->context,
263 __ilog2_u32(eq->len/256));
264 AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context,
265 eq_delay_to_mult(eq_delay));
266 be_dws_cpu_to_le(req->context, sizeof(req->context));
267
268 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
269
270 status = be_mbox_db_ring(ctrl);
271 if (!status) {
272 eq->id = le16_to_cpu(resp->eq_id);
273 eq->created = true;
274 }
275 spin_unlock(&ctrl->cmd_lock);
276 return status;
277}
278
279int be_cmd_mac_addr_query(struct be_ctrl_info *ctrl, u8 *mac_addr,
280 u8 type, bool permanent, u32 if_handle)
281{
282 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
283 struct be_cmd_req_mac_query *req = embedded_payload(wrb);
284 struct be_cmd_resp_mac_query *resp = embedded_payload(wrb);
285 int status;
286
287 spin_lock(&ctrl->cmd_lock);
288 memset(wrb, 0, sizeof(*wrb));
289
290 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
291
292 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
293 OPCODE_COMMON_NTWK_MAC_QUERY, sizeof(*req));
294
295 req->type = type;
296 if (permanent) {
297 req->permanent = 1;
298 } else {
299 req->if_id = cpu_to_le16((u16)if_handle);
300 req->permanent = 0;
301 }
302
303 status = be_mbox_db_ring(ctrl);
304 if (!status)
305 memcpy(mac_addr, resp->mac.addr, ETH_ALEN);
306
307 spin_unlock(&ctrl->cmd_lock);
308 return status;
309}
310
311int be_cmd_pmac_add(struct be_ctrl_info *ctrl, u8 *mac_addr,
312 u32 if_id, u32 *pmac_id)
313{
314 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
315 struct be_cmd_req_pmac_add *req = embedded_payload(wrb);
316 int status;
317
318 spin_lock(&ctrl->cmd_lock);
319 memset(wrb, 0, sizeof(*wrb));
320
321 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
322
323 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
324 OPCODE_COMMON_NTWK_PMAC_ADD, sizeof(*req));
325
326 req->if_id = cpu_to_le32(if_id);
327 memcpy(req->mac_address, mac_addr, ETH_ALEN);
328
329 status = be_mbox_db_ring(ctrl);
330 if (!status) {
331 struct be_cmd_resp_pmac_add *resp = embedded_payload(wrb);
332 *pmac_id = le32_to_cpu(resp->pmac_id);
333 }
334
335 spin_unlock(&ctrl->cmd_lock);
336 return status;
337}
338
339int be_cmd_pmac_del(struct be_ctrl_info *ctrl, u32 if_id, u32 pmac_id)
340{
341 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
342 struct be_cmd_req_pmac_del *req = embedded_payload(wrb);
343 int status;
344
345 spin_lock(&ctrl->cmd_lock);
346 memset(wrb, 0, sizeof(*wrb));
347
348 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
349
350 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
351 OPCODE_COMMON_NTWK_PMAC_DEL, sizeof(*req));
352
353 req->if_id = cpu_to_le32(if_id);
354 req->pmac_id = cpu_to_le32(pmac_id);
355
356 status = be_mbox_db_ring(ctrl);
357 spin_unlock(&ctrl->cmd_lock);
358
359 return status;
360}
361
362int be_cmd_cq_create(struct be_ctrl_info *ctrl,
363 struct be_queue_info *cq, struct be_queue_info *eq,
364 bool sol_evts, bool no_delay, int coalesce_wm)
365{
366 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
367 struct be_cmd_req_cq_create *req = embedded_payload(wrb);
368 struct be_cmd_resp_cq_create *resp = embedded_payload(wrb);
369 struct be_dma_mem *q_mem = &cq->dma_mem;
370 void *ctxt = &req->context;
371 int status;
372
373 spin_lock(&ctrl->cmd_lock);
374 memset(wrb, 0, sizeof(*wrb));
375
376 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
377
378 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
379 OPCODE_COMMON_CQ_CREATE, sizeof(*req));
380
381 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size));
382
383 AMAP_SET_BITS(struct amap_cq_context, coalescwm, ctxt, coalesce_wm);
384 AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay);
385 AMAP_SET_BITS(struct amap_cq_context, count, ctxt,
386 __ilog2_u32(cq->len/256));
387 AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1);
388 AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts);
389 AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1);
390 AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id);
391 AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 0);
392 AMAP_SET_BITS(struct amap_cq_context, func, ctxt, ctrl->pci_func);
393 be_dws_cpu_to_le(ctxt, sizeof(req->context));
394
395 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
396
397 status = be_mbox_db_ring(ctrl);
398 if (!status) {
399 cq->id = le16_to_cpu(resp->cq_id);
400 cq->created = true;
401 }
402 spin_unlock(&ctrl->cmd_lock);
403
404 return status;
405}
406
407int be_cmd_txq_create(struct be_ctrl_info *ctrl,
408 struct be_queue_info *txq,
409 struct be_queue_info *cq)
410{
411 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
412 struct be_cmd_req_eth_tx_create *req = embedded_payload(wrb);
413 struct be_dma_mem *q_mem = &txq->dma_mem;
414 void *ctxt = &req->context;
415 int status;
416 u32 len_encoded;
417
418 spin_lock(&ctrl->cmd_lock);
419 memset(wrb, 0, sizeof(*wrb));
420
421 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
422
423 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ETH, OPCODE_ETH_TX_CREATE,
424 sizeof(*req));
425
426 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
427 req->ulp_num = BE_ULP1_NUM;
428 req->type = BE_ETH_TX_RING_TYPE_STANDARD;
429
430 len_encoded = fls(txq->len); /* log2(len) + 1 */
431 if (len_encoded == 16)
432 len_encoded = 0;
433 AMAP_SET_BITS(struct amap_tx_context, tx_ring_size, ctxt, len_encoded);
434 AMAP_SET_BITS(struct amap_tx_context, pci_func_id, ctxt,
435 ctrl->pci_func);
436 AMAP_SET_BITS(struct amap_tx_context, ctx_valid, ctxt, 1);
437 AMAP_SET_BITS(struct amap_tx_context, cq_id_send, ctxt, cq->id);
438
439 be_dws_cpu_to_le(ctxt, sizeof(req->context));
440
441 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
442
443 status = be_mbox_db_ring(ctrl);
444 if (!status) {
445 struct be_cmd_resp_eth_tx_create *resp = embedded_payload(wrb);
446 txq->id = le16_to_cpu(resp->cid);
447 txq->created = true;
448 }
449 spin_unlock(&ctrl->cmd_lock);
450
451 return status;
452}
453
454int be_cmd_rxq_create(struct be_ctrl_info *ctrl,
455 struct be_queue_info *rxq, u16 cq_id, u16 frag_size,
456 u16 max_frame_size, u32 if_id, u32 rss)
457{
458 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
459 struct be_cmd_req_eth_rx_create *req = embedded_payload(wrb);
460 struct be_dma_mem *q_mem = &rxq->dma_mem;
461 int status;
462
463 spin_lock(&ctrl->cmd_lock);
464 memset(wrb, 0, sizeof(*wrb));
465
466 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
467
468 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ETH, OPCODE_ETH_RX_CREATE,
469 sizeof(*req));
470
471 req->cq_id = cpu_to_le16(cq_id);
472 req->frag_size = fls(frag_size) - 1;
473 req->num_pages = 2;
474 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
475 req->interface_id = cpu_to_le32(if_id);
476 req->max_frame_size = cpu_to_le16(max_frame_size);
477 req->rss_queue = cpu_to_le32(rss);
478
479 status = be_mbox_db_ring(ctrl);
480 if (!status) {
481 struct be_cmd_resp_eth_rx_create *resp = embedded_payload(wrb);
482 rxq->id = le16_to_cpu(resp->id);
483 rxq->created = true;
484 }
485 spin_unlock(&ctrl->cmd_lock);
486
487 return status;
488}
489
490/* Generic destroyer function for all types of queues */
491int be_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
492 int queue_type)
493{
494 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
495 struct be_cmd_req_q_destroy *req = embedded_payload(wrb);
496 u8 subsys = 0, opcode = 0;
497 int status;
498
499 spin_lock(&ctrl->cmd_lock);
500
501 memset(wrb, 0, sizeof(*wrb));
502 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
503
504 switch (queue_type) {
505 case QTYPE_EQ:
506 subsys = CMD_SUBSYSTEM_COMMON;
507 opcode = OPCODE_COMMON_EQ_DESTROY;
508 break;
509 case QTYPE_CQ:
510 subsys = CMD_SUBSYSTEM_COMMON;
511 opcode = OPCODE_COMMON_CQ_DESTROY;
512 break;
513 case QTYPE_TXQ:
514 subsys = CMD_SUBSYSTEM_ETH;
515 opcode = OPCODE_ETH_TX_DESTROY;
516 break;
517 case QTYPE_RXQ:
518 subsys = CMD_SUBSYSTEM_ETH;
519 opcode = OPCODE_ETH_RX_DESTROY;
520 break;
521 default:
522 printk(KERN_WARNING DRV_NAME ":bad Q type in Q destroy cmd\n");
523 status = -1;
524 goto err;
525 }
526 be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req));
527 req->id = cpu_to_le16(q->id);
528
529 status = be_mbox_db_ring(ctrl);
530err:
531 spin_unlock(&ctrl->cmd_lock);
532
533 return status;
534}
535
536/* Create an rx filtering policy configuration on an i/f */
537int be_cmd_if_create(struct be_ctrl_info *ctrl, u32 flags, u8 *mac,
538 bool pmac_invalid, u32 *if_handle, u32 *pmac_id)
539{
540 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
541 struct be_cmd_req_if_create *req = embedded_payload(wrb);
542 int status;
543
544 spin_lock(&ctrl->cmd_lock);
545 memset(wrb, 0, sizeof(*wrb));
546
547 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
548
549 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
550 OPCODE_COMMON_NTWK_INTERFACE_CREATE, sizeof(*req));
551
552 req->capability_flags = cpu_to_le32(flags);
553 req->enable_flags = cpu_to_le32(flags);
554 if (!pmac_invalid)
555 memcpy(req->mac_addr, mac, ETH_ALEN);
556
557 status = be_mbox_db_ring(ctrl);
558 if (!status) {
559 struct be_cmd_resp_if_create *resp = embedded_payload(wrb);
560 *if_handle = le32_to_cpu(resp->interface_id);
561 if (!pmac_invalid)
562 *pmac_id = le32_to_cpu(resp->pmac_id);
563 }
564
565 spin_unlock(&ctrl->cmd_lock);
566 return status;
567}
568
569int be_cmd_if_destroy(struct be_ctrl_info *ctrl, u32 interface_id)
570{
571 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
572 struct be_cmd_req_if_destroy *req = embedded_payload(wrb);
573 int status;
574
575 spin_lock(&ctrl->cmd_lock);
576 memset(wrb, 0, sizeof(*wrb));
577
578 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
579
580 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
581 OPCODE_COMMON_NTWK_INTERFACE_DESTROY, sizeof(*req));
582
583 req->interface_id = cpu_to_le32(interface_id);
584 status = be_mbox_db_ring(ctrl);
585
586 spin_unlock(&ctrl->cmd_lock);
587
588 return status;
589}
590
591/* Get stats is a non embedded command: the request is not embedded inside
592 * WRB but is a separate dma memory block
593 */
594int be_cmd_get_stats(struct be_ctrl_info *ctrl, struct be_dma_mem *nonemb_cmd)
595{
596 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
597 struct be_cmd_req_get_stats *req = nonemb_cmd->va;
598 struct be_sge *sge = nonembedded_sgl(wrb);
599 int status;
600
601 spin_lock(&ctrl->cmd_lock);
602 memset(wrb, 0, sizeof(*wrb));
603
604 memset(req, 0, sizeof(*req));
605
606 be_wrb_hdr_prepare(wrb, sizeof(*req), false, 1);
607
608 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ETH,
609 OPCODE_ETH_GET_STATISTICS, sizeof(*req));
610 sge->pa_hi = cpu_to_le32(upper_32_bits(nonemb_cmd->dma));
611 sge->pa_lo = cpu_to_le32(nonemb_cmd->dma & 0xFFFFFFFF);
612 sge->len = cpu_to_le32(nonemb_cmd->size);
613
614 status = be_mbox_db_ring(ctrl);
615 if (!status) {
616 struct be_cmd_resp_get_stats *resp = nonemb_cmd->va;
617 be_dws_le_to_cpu(&resp->hw_stats, sizeof(resp->hw_stats));
618 }
619
620 spin_unlock(&ctrl->cmd_lock);
621 return status;
622}
623
624int be_cmd_link_status_query(struct be_ctrl_info *ctrl,
625 struct be_link_info *link)
626{
627 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
628 struct be_cmd_req_link_status *req = embedded_payload(wrb);
629 int status;
630
631 spin_lock(&ctrl->cmd_lock);
632 memset(wrb, 0, sizeof(*wrb));
633
634 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
635
636 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
637 OPCODE_COMMON_NTWK_LINK_STATUS_QUERY, sizeof(*req));
638
639 status = be_mbox_db_ring(ctrl);
640 if (!status) {
641 struct be_cmd_resp_link_status *resp = embedded_payload(wrb);
642 link->speed = resp->mac_speed;
643 link->duplex = resp->mac_duplex;
644 link->fault = resp->mac_fault;
645 } else {
646 link->speed = PHY_LINK_SPEED_ZERO;
647 }
648
649 spin_unlock(&ctrl->cmd_lock);
650 return status;
651}
652
653int be_cmd_get_fw_ver(struct be_ctrl_info *ctrl, char *fw_ver)
654{
655 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
656 struct be_cmd_req_get_fw_version *req = embedded_payload(wrb);
657 int status;
658
659 spin_lock(&ctrl->cmd_lock);
660 memset(wrb, 0, sizeof(*wrb));
661
662 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
663
664 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
665 OPCODE_COMMON_GET_FW_VERSION, sizeof(*req));
666
667 status = be_mbox_db_ring(ctrl);
668 if (!status) {
669 struct be_cmd_resp_get_fw_version *resp = embedded_payload(wrb);
670 strncpy(fw_ver, resp->firmware_version_string, FW_VER_LEN);
671 }
672
673 spin_unlock(&ctrl->cmd_lock);
674 return status;
675}
676
677/* set the EQ delay interval of an EQ to specified value */
678int be_cmd_modify_eqd(struct be_ctrl_info *ctrl, u32 eq_id, u32 eqd)
679{
680 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
681 struct be_cmd_req_modify_eq_delay *req = embedded_payload(wrb);
682 int status;
683
684 spin_lock(&ctrl->cmd_lock);
685 memset(wrb, 0, sizeof(*wrb));
686
687 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
688
689 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
690 OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req));
691
692 req->num_eq = cpu_to_le32(1);
693 req->delay[0].eq_id = cpu_to_le32(eq_id);
694 req->delay[0].phase = 0;
695 req->delay[0].delay_multiplier = cpu_to_le32(eqd);
696
697 status = be_mbox_db_ring(ctrl);
698
699 spin_unlock(&ctrl->cmd_lock);
700 return status;
701}
702
703int be_cmd_vlan_config(struct be_ctrl_info *ctrl, u32 if_id, u16 *vtag_array,
704 u32 num, bool untagged, bool promiscuous)
705{
706 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
707 struct be_cmd_req_vlan_config *req = embedded_payload(wrb);
708 int status;
709
710 spin_lock(&ctrl->cmd_lock);
711 memset(wrb, 0, sizeof(*wrb));
712
713 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
714
715 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
716 OPCODE_COMMON_NTWK_VLAN_CONFIG, sizeof(*req));
717
718 req->interface_id = if_id;
719 req->promiscuous = promiscuous;
720 req->untagged = untagged;
721 req->num_vlan = num;
722 if (!promiscuous) {
723 memcpy(req->normal_vlan, vtag_array,
724 req->num_vlan * sizeof(vtag_array[0]));
725 }
726
727 status = be_mbox_db_ring(ctrl);
728
729 spin_unlock(&ctrl->cmd_lock);
730 return status;
731}
732
733int be_cmd_promiscuous_config(struct be_ctrl_info *ctrl, u8 port_num, bool en)
734{
735 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
736 struct be_cmd_req_promiscuous_config *req = embedded_payload(wrb);
737 int status;
738
739 spin_lock(&ctrl->cmd_lock);
740 memset(wrb, 0, sizeof(*wrb));
741
742 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
743
744 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ETH,
745 OPCODE_ETH_PROMISCUOUS, sizeof(*req));
746
747 if (port_num)
748 req->port1_promiscuous = en;
749 else
750 req->port0_promiscuous = en;
751
752 status = be_mbox_db_ring(ctrl);
753
754 spin_unlock(&ctrl->cmd_lock);
755 return status;
756}
757
758int be_cmd_mcast_mac_set(struct be_ctrl_info *ctrl, u32 if_id, u8 *mac_table,
759 u32 num, bool promiscuous)
760{
761 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
762 struct be_cmd_req_mcast_mac_config *req = embedded_payload(wrb);
763 int status;
764
765 spin_lock(&ctrl->cmd_lock);
766 memset(wrb, 0, sizeof(*wrb));
767
768 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
769
770 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
771 OPCODE_COMMON_NTWK_MULTICAST_SET, sizeof(*req));
772
773 req->interface_id = if_id;
774 req->promiscuous = promiscuous;
775 if (!promiscuous) {
776 req->num_mac = cpu_to_le16(num);
777 if (num)
778 memcpy(req->mac, mac_table, ETH_ALEN * num);
779 }
780
781 status = be_mbox_db_ring(ctrl);
782
783 spin_unlock(&ctrl->cmd_lock);
784 return status;
785}
786
787int be_cmd_set_flow_control(struct be_ctrl_info *ctrl, u32 tx_fc, u32 rx_fc)
788{
789 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
790 struct be_cmd_req_set_flow_control *req = embedded_payload(wrb);
791 int status;
792
793 spin_lock(&ctrl->cmd_lock);
794
795 memset(wrb, 0, sizeof(*wrb));
796
797 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
798
799 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
800 OPCODE_COMMON_SET_FLOW_CONTROL, sizeof(*req));
801
802 req->tx_flow_control = cpu_to_le16((u16)tx_fc);
803 req->rx_flow_control = cpu_to_le16((u16)rx_fc);
804
805 status = be_mbox_db_ring(ctrl);
806
807 spin_unlock(&ctrl->cmd_lock);
808 return status;
809}
810
811int be_cmd_get_flow_control(struct be_ctrl_info *ctrl, u32 *tx_fc, u32 *rx_fc)
812{
813 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
814 struct be_cmd_req_get_flow_control *req = embedded_payload(wrb);
815 int status;
816
817 spin_lock(&ctrl->cmd_lock);
818
819 memset(wrb, 0, sizeof(*wrb));
820
821 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
822
823 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
824 OPCODE_COMMON_GET_FLOW_CONTROL, sizeof(*req));
825
826 status = be_mbox_db_ring(ctrl);
827 if (!status) {
828 struct be_cmd_resp_get_flow_control *resp =
829 embedded_payload(wrb);
830 *tx_fc = le16_to_cpu(resp->tx_flow_control);
831 *rx_fc = le16_to_cpu(resp->rx_flow_control);
832 }
833
834 spin_unlock(&ctrl->cmd_lock);
835 return status;
836}
837
838int be_cmd_query_fw_cfg(struct be_ctrl_info *ctrl, u32 *port_num)
839{
840 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
841 struct be_cmd_req_query_fw_cfg *req = embedded_payload(wrb);
842 int status;
843
844 spin_lock(&ctrl->cmd_lock);
845
846 memset(wrb, 0, sizeof(*wrb));
847
848 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
849
850 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
851 OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
852
853 status = be_mbox_db_ring(ctrl);
854 if (!status) {
855 struct be_cmd_resp_query_fw_cfg *resp = embedded_payload(wrb);
856 *port_num = le32_to_cpu(resp->phys_port);
857 }
858
859 spin_unlock(&ctrl->cmd_lock);
860 return status;
861}
diff --git a/drivers/net/benet/be_cmds.h b/drivers/net/benet/be_cmds.h
new file mode 100644
index 000000000000..e499e2d5b8c3
--- /dev/null
+++ b/drivers/net/benet/be_cmds.h
@@ -0,0 +1,688 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18/*
19 * The driver sends configuration and managements command requests to the
20 * firmware in the BE. These requests are communicated to the processor
21 * using Work Request Blocks (WRBs) submitted to the MCC-WRB ring or via one
22 * WRB inside a MAILBOX.
23 * The commands are serviced by the ARM processor in the BladeEngine's MPU.
24 */
25
26struct be_sge {
27 u32 pa_lo;
28 u32 pa_hi;
29 u32 len;
30};
31
32#define MCC_WRB_EMBEDDED_MASK 1 /* bit 0 of dword 0*/
33#define MCC_WRB_SGE_CNT_SHIFT 3 /* bits 3 - 7 of dword 0 */
34#define MCC_WRB_SGE_CNT_MASK 0x1F /* bits 3 - 7 of dword 0 */
35struct be_mcc_wrb {
36 u32 embedded; /* dword 0 */
37 u32 payload_length; /* dword 1 */
38 u32 tag0; /* dword 2 */
39 u32 tag1; /* dword 3 */
40 u32 rsvd; /* dword 4 */
41 union {
42 u8 embedded_payload[236]; /* used by embedded cmds */
43 struct be_sge sgl[19]; /* used by non-embedded cmds */
44 } payload;
45};
46
47#define CQE_FLAGS_VALID_MASK (1 << 31)
48#define CQE_FLAGS_ASYNC_MASK (1 << 30)
49#define CQE_FLAGS_COMPLETED_MASK (1 << 28)
50#define CQE_FLAGS_CONSUMED_MASK (1 << 27)
51
52/* Completion Status */
53enum {
54 MCC_STATUS_SUCCESS = 0x0,
55/* The client does not have sufficient privileges to execute the command */
56 MCC_STATUS_INSUFFICIENT_PRIVILEGES = 0x1,
57/* A parameter in the command was invalid. */
58 MCC_STATUS_INVALID_PARAMETER = 0x2,
59/* There are insufficient chip resources to execute the command */
60 MCC_STATUS_INSUFFICIENT_RESOURCES = 0x3,
61/* The command is completing because the queue was getting flushed */
62 MCC_STATUS_QUEUE_FLUSHING = 0x4,
63/* The command is completing with a DMA error */
64 MCC_STATUS_DMA_FAILED = 0x5
65};
66
67#define CQE_STATUS_COMPL_MASK 0xFFFF
68#define CQE_STATUS_COMPL_SHIFT 0 /* bits 0 - 15 */
69#define CQE_STATUS_EXTD_MASK 0xFFFF
70#define CQE_STATUS_EXTD_SHIFT 0 /* bits 0 - 15 */
71
72struct be_mcc_cq_entry {
73 u32 status; /* dword 0 */
74 u32 tag0; /* dword 1 */
75 u32 tag1; /* dword 2 */
76 u32 flags; /* dword 3 */
77};
78
79struct be_mcc_mailbox {
80 struct be_mcc_wrb wrb;
81 struct be_mcc_cq_entry cqe;
82};
83
84#define CMD_SUBSYSTEM_COMMON 0x1
85#define CMD_SUBSYSTEM_ETH 0x3
86
87#define OPCODE_COMMON_NTWK_MAC_QUERY 1
88#define OPCODE_COMMON_NTWK_MAC_SET 2
89#define OPCODE_COMMON_NTWK_MULTICAST_SET 3
90#define OPCODE_COMMON_NTWK_VLAN_CONFIG 4
91#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY 5
92#define OPCODE_COMMON_CQ_CREATE 12
93#define OPCODE_COMMON_EQ_CREATE 13
94#define OPCODE_COMMON_MCC_CREATE 21
95#define OPCODE_COMMON_NTWK_RX_FILTER 34
96#define OPCODE_COMMON_GET_FW_VERSION 35
97#define OPCODE_COMMON_SET_FLOW_CONTROL 36
98#define OPCODE_COMMON_GET_FLOW_CONTROL 37
99#define OPCODE_COMMON_SET_FRAME_SIZE 39
100#define OPCODE_COMMON_MODIFY_EQ_DELAY 41
101#define OPCODE_COMMON_FIRMWARE_CONFIG 42
102#define OPCODE_COMMON_NTWK_INTERFACE_CREATE 50
103#define OPCODE_COMMON_NTWK_INTERFACE_DESTROY 51
104#define OPCODE_COMMON_CQ_DESTROY 54
105#define OPCODE_COMMON_EQ_DESTROY 55
106#define OPCODE_COMMON_QUERY_FIRMWARE_CONFIG 58
107#define OPCODE_COMMON_NTWK_PMAC_ADD 59
108#define OPCODE_COMMON_NTWK_PMAC_DEL 60
109
110#define OPCODE_ETH_ACPI_CONFIG 2
111#define OPCODE_ETH_PROMISCUOUS 3
112#define OPCODE_ETH_GET_STATISTICS 4
113#define OPCODE_ETH_TX_CREATE 7
114#define OPCODE_ETH_RX_CREATE 8
115#define OPCODE_ETH_TX_DESTROY 9
116#define OPCODE_ETH_RX_DESTROY 10
117
118struct be_cmd_req_hdr {
119 u8 opcode; /* dword 0 */
120 u8 subsystem; /* dword 0 */
121 u8 port_number; /* dword 0 */
122 u8 domain; /* dword 0 */
123 u32 timeout; /* dword 1 */
124 u32 request_length; /* dword 2 */
125 u32 rsvd; /* dword 3 */
126};
127
128#define RESP_HDR_INFO_OPCODE_SHIFT 0 /* bits 0 - 7 */
129#define RESP_HDR_INFO_SUBSYS_SHIFT 8 /* bits 8 - 15 */
130struct be_cmd_resp_hdr {
131 u32 info; /* dword 0 */
132 u32 status; /* dword 1 */
133 u32 response_length; /* dword 2 */
134 u32 actual_resp_len; /* dword 3 */
135};
136
137struct phys_addr {
138 u32 lo;
139 u32 hi;
140};
141
142/**************************
143 * BE Command definitions *
144 **************************/
145
146/* Pseudo amap definition in which each bit of the actual structure is defined
147 * as a byte: used to calculate offset/shift/mask of each field */
148struct amap_eq_context {
149 u8 cidx[13]; /* dword 0*/
150 u8 rsvd0[3]; /* dword 0*/
151 u8 epidx[13]; /* dword 0*/
152 u8 valid; /* dword 0*/
153 u8 rsvd1; /* dword 0*/
154 u8 size; /* dword 0*/
155 u8 pidx[13]; /* dword 1*/
156 u8 rsvd2[3]; /* dword 1*/
157 u8 pd[10]; /* dword 1*/
158 u8 count[3]; /* dword 1*/
159 u8 solevent; /* dword 1*/
160 u8 stalled; /* dword 1*/
161 u8 armed; /* dword 1*/
162 u8 rsvd3[4]; /* dword 2*/
163 u8 func[8]; /* dword 2*/
164 u8 rsvd4; /* dword 2*/
165 u8 delaymult[10]; /* dword 2*/
166 u8 rsvd5[2]; /* dword 2*/
167 u8 phase[2]; /* dword 2*/
168 u8 nodelay; /* dword 2*/
169 u8 rsvd6[4]; /* dword 2*/
170 u8 rsvd7[32]; /* dword 3*/
171} __packed;
172
173struct be_cmd_req_eq_create {
174 struct be_cmd_req_hdr hdr;
175 u16 num_pages; /* sword */
176 u16 rsvd0; /* sword */
177 u8 context[sizeof(struct amap_eq_context) / 8];
178 struct phys_addr pages[8];
179} __packed;
180
181struct be_cmd_resp_eq_create {
182 struct be_cmd_resp_hdr resp_hdr;
183 u16 eq_id; /* sword */
184 u16 rsvd0; /* sword */
185} __packed;
186
187/******************** Mac query ***************************/
188enum {
189 MAC_ADDRESS_TYPE_STORAGE = 0x0,
190 MAC_ADDRESS_TYPE_NETWORK = 0x1,
191 MAC_ADDRESS_TYPE_PD = 0x2,
192 MAC_ADDRESS_TYPE_MANAGEMENT = 0x3
193};
194
195struct mac_addr {
196 u16 size_of_struct;
197 u8 addr[ETH_ALEN];
198} __packed;
199
200struct be_cmd_req_mac_query {
201 struct be_cmd_req_hdr hdr;
202 u8 type;
203 u8 permanent;
204 u16 if_id;
205} __packed;
206
207struct be_cmd_resp_mac_query {
208 struct be_cmd_resp_hdr hdr;
209 struct mac_addr mac;
210};
211
212/******************** PMac Add ***************************/
213struct be_cmd_req_pmac_add {
214 struct be_cmd_req_hdr hdr;
215 u32 if_id;
216 u8 mac_address[ETH_ALEN];
217 u8 rsvd0[2];
218} __packed;
219
220struct be_cmd_resp_pmac_add {
221 struct be_cmd_resp_hdr hdr;
222 u32 pmac_id;
223};
224
225/******************** PMac Del ***************************/
226struct be_cmd_req_pmac_del {
227 struct be_cmd_req_hdr hdr;
228 u32 if_id;
229 u32 pmac_id;
230};
231
232/******************** Create CQ ***************************/
233/* Pseudo amap definition in which each bit of the actual structure is defined
234 * as a byte: used to calculate offset/shift/mask of each field */
235struct amap_cq_context {
236 u8 cidx[11]; /* dword 0*/
237 u8 rsvd0; /* dword 0*/
238 u8 coalescwm[2]; /* dword 0*/
239 u8 nodelay; /* dword 0*/
240 u8 epidx[11]; /* dword 0*/
241 u8 rsvd1; /* dword 0*/
242 u8 count[2]; /* dword 0*/
243 u8 valid; /* dword 0*/
244 u8 solevent; /* dword 0*/
245 u8 eventable; /* dword 0*/
246 u8 pidx[11]; /* dword 1*/
247 u8 rsvd2; /* dword 1*/
248 u8 pd[10]; /* dword 1*/
249 u8 eqid[8]; /* dword 1*/
250 u8 stalled; /* dword 1*/
251 u8 armed; /* dword 1*/
252 u8 rsvd3[4]; /* dword 2*/
253 u8 func[8]; /* dword 2*/
254 u8 rsvd4[20]; /* dword 2*/
255 u8 rsvd5[32]; /* dword 3*/
256} __packed;
257
258struct be_cmd_req_cq_create {
259 struct be_cmd_req_hdr hdr;
260 u16 num_pages;
261 u16 rsvd0;
262 u8 context[sizeof(struct amap_cq_context) / 8];
263 struct phys_addr pages[8];
264} __packed;
265
266struct be_cmd_resp_cq_create {
267 struct be_cmd_resp_hdr hdr;
268 u16 cq_id;
269 u16 rsvd0;
270} __packed;
271
272/******************** Create TxQ ***************************/
273#define BE_ETH_TX_RING_TYPE_STANDARD 2
274#define BE_ULP1_NUM 1
275
276/* Pseudo amap definition in which each bit of the actual structure is defined
277 * as a byte: used to calculate offset/shift/mask of each field */
278struct amap_tx_context {
279 u8 rsvd0[16]; /* dword 0 */
280 u8 tx_ring_size[4]; /* dword 0 */
281 u8 rsvd1[26]; /* dword 0 */
282 u8 pci_func_id[8]; /* dword 1 */
283 u8 rsvd2[9]; /* dword 1 */
284 u8 ctx_valid; /* dword 1 */
285 u8 cq_id_send[16]; /* dword 2 */
286 u8 rsvd3[16]; /* dword 2 */
287 u8 rsvd4[32]; /* dword 3 */
288 u8 rsvd5[32]; /* dword 4 */
289 u8 rsvd6[32]; /* dword 5 */
290 u8 rsvd7[32]; /* dword 6 */
291 u8 rsvd8[32]; /* dword 7 */
292 u8 rsvd9[32]; /* dword 8 */
293 u8 rsvd10[32]; /* dword 9 */
294 u8 rsvd11[32]; /* dword 10 */
295 u8 rsvd12[32]; /* dword 11 */
296 u8 rsvd13[32]; /* dword 12 */
297 u8 rsvd14[32]; /* dword 13 */
298 u8 rsvd15[32]; /* dword 14 */
299 u8 rsvd16[32]; /* dword 15 */
300} __packed;
301
302struct be_cmd_req_eth_tx_create {
303 struct be_cmd_req_hdr hdr;
304 u8 num_pages;
305 u8 ulp_num;
306 u8 type;
307 u8 bound_port;
308 u8 context[sizeof(struct amap_tx_context) / 8];
309 struct phys_addr pages[8];
310} __packed;
311
312struct be_cmd_resp_eth_tx_create {
313 struct be_cmd_resp_hdr hdr;
314 u16 cid;
315 u16 rsvd0;
316} __packed;
317
318/******************** Create RxQ ***************************/
319struct be_cmd_req_eth_rx_create {
320 struct be_cmd_req_hdr hdr;
321 u16 cq_id;
322 u8 frag_size;
323 u8 num_pages;
324 struct phys_addr pages[2];
325 u32 interface_id;
326 u16 max_frame_size;
327 u16 rsvd0;
328 u32 rss_queue;
329} __packed;
330
331struct be_cmd_resp_eth_rx_create {
332 struct be_cmd_resp_hdr hdr;
333 u16 id;
334 u8 cpu_id;
335 u8 rsvd0;
336} __packed;
337
338/******************** Q Destroy ***************************/
339/* Type of Queue to be destroyed */
340enum {
341 QTYPE_EQ = 1,
342 QTYPE_CQ,
343 QTYPE_TXQ,
344 QTYPE_RXQ
345};
346
347struct be_cmd_req_q_destroy {
348 struct be_cmd_req_hdr hdr;
349 u16 id;
350 u16 bypass_flush; /* valid only for rx q destroy */
351} __packed;
352
353/************ I/f Create (it's actually I/f Config Create)**********/
354
355/* Capability flags for the i/f */
356enum be_if_flags {
357 BE_IF_FLAGS_RSS = 0x4,
358 BE_IF_FLAGS_PROMISCUOUS = 0x8,
359 BE_IF_FLAGS_BROADCAST = 0x10,
360 BE_IF_FLAGS_UNTAGGED = 0x20,
361 BE_IF_FLAGS_ULP = 0x40,
362 BE_IF_FLAGS_VLAN_PROMISCUOUS = 0x80,
363 BE_IF_FLAGS_VLAN = 0x100,
364 BE_IF_FLAGS_MCAST_PROMISCUOUS = 0x200,
365 BE_IF_FLAGS_PASS_L2_ERRORS = 0x400,
366 BE_IF_FLAGS_PASS_L3L4_ERRORS = 0x800
367};
368
369/* An RX interface is an object with one or more MAC addresses and
370 * filtering capabilities. */
371struct be_cmd_req_if_create {
372 struct be_cmd_req_hdr hdr;
373 u32 version; /* ignore currntly */
374 u32 capability_flags;
375 u32 enable_flags;
376 u8 mac_addr[ETH_ALEN];
377 u8 rsvd0;
378 u8 pmac_invalid; /* if set, don't attach the mac addr to the i/f */
379 u32 vlan_tag; /* not used currently */
380} __packed;
381
382struct be_cmd_resp_if_create {
383 struct be_cmd_resp_hdr hdr;
384 u32 interface_id;
385 u32 pmac_id;
386};
387
388/****** I/f Destroy(it's actually I/f Config Destroy )**********/
389struct be_cmd_req_if_destroy {
390 struct be_cmd_req_hdr hdr;
391 u32 interface_id;
392};
393
394/*************** HW Stats Get **********************************/
395struct be_port_rxf_stats {
396 u32 rx_bytes_lsd; /* dword 0*/
397 u32 rx_bytes_msd; /* dword 1*/
398 u32 rx_total_frames; /* dword 2*/
399 u32 rx_unicast_frames; /* dword 3*/
400 u32 rx_multicast_frames; /* dword 4*/
401 u32 rx_broadcast_frames; /* dword 5*/
402 u32 rx_crc_errors; /* dword 6*/
403 u32 rx_alignment_symbol_errors; /* dword 7*/
404 u32 rx_pause_frames; /* dword 8*/
405 u32 rx_control_frames; /* dword 9*/
406 u32 rx_in_range_errors; /* dword 10*/
407 u32 rx_out_range_errors; /* dword 11*/
408 u32 rx_frame_too_long; /* dword 12*/
409 u32 rx_address_match_errors; /* dword 13*/
410 u32 rx_vlan_mismatch; /* dword 14*/
411 u32 rx_dropped_too_small; /* dword 15*/
412 u32 rx_dropped_too_short; /* dword 16*/
413 u32 rx_dropped_header_too_small; /* dword 17*/
414 u32 rx_dropped_tcp_length; /* dword 18*/
415 u32 rx_dropped_runt; /* dword 19*/
416 u32 rx_64_byte_packets; /* dword 20*/
417 u32 rx_65_127_byte_packets; /* dword 21*/
418 u32 rx_128_256_byte_packets; /* dword 22*/
419 u32 rx_256_511_byte_packets; /* dword 23*/
420 u32 rx_512_1023_byte_packets; /* dword 24*/
421 u32 rx_1024_1518_byte_packets; /* dword 25*/
422 u32 rx_1519_2047_byte_packets; /* dword 26*/
423 u32 rx_2048_4095_byte_packets; /* dword 27*/
424 u32 rx_4096_8191_byte_packets; /* dword 28*/
425 u32 rx_8192_9216_byte_packets; /* dword 29*/
426 u32 rx_ip_checksum_errs; /* dword 30*/
427 u32 rx_tcp_checksum_errs; /* dword 31*/
428 u32 rx_udp_checksum_errs; /* dword 32*/
429 u32 rx_non_rss_packets; /* dword 33*/
430 u32 rx_ipv4_packets; /* dword 34*/
431 u32 rx_ipv6_packets; /* dword 35*/
432 u32 rx_ipv4_bytes_lsd; /* dword 36*/
433 u32 rx_ipv4_bytes_msd; /* dword 37*/
434 u32 rx_ipv6_bytes_lsd; /* dword 38*/
435 u32 rx_ipv6_bytes_msd; /* dword 39*/
436 u32 rx_chute1_packets; /* dword 40*/
437 u32 rx_chute2_packets; /* dword 41*/
438 u32 rx_chute3_packets; /* dword 42*/
439 u32 rx_management_packets; /* dword 43*/
440 u32 rx_switched_unicast_packets; /* dword 44*/
441 u32 rx_switched_multicast_packets; /* dword 45*/
442 u32 rx_switched_broadcast_packets; /* dword 46*/
443 u32 tx_bytes_lsd; /* dword 47*/
444 u32 tx_bytes_msd; /* dword 48*/
445 u32 tx_unicastframes; /* dword 49*/
446 u32 tx_multicastframes; /* dword 50*/
447 u32 tx_broadcastframes; /* dword 51*/
448 u32 tx_pauseframes; /* dword 52*/
449 u32 tx_controlframes; /* dword 53*/
450 u32 tx_64_byte_packets; /* dword 54*/
451 u32 tx_65_127_byte_packets; /* dword 55*/
452 u32 tx_128_256_byte_packets; /* dword 56*/
453 u32 tx_256_511_byte_packets; /* dword 57*/
454 u32 tx_512_1023_byte_packets; /* dword 58*/
455 u32 tx_1024_1518_byte_packets; /* dword 59*/
456 u32 tx_1519_2047_byte_packets; /* dword 60*/
457 u32 tx_2048_4095_byte_packets; /* dword 61*/
458 u32 tx_4096_8191_byte_packets; /* dword 62*/
459 u32 tx_8192_9216_byte_packets; /* dword 63*/
460 u32 rx_fifo_overflow; /* dword 64*/
461 u32 rx_input_fifo_overflow; /* dword 65*/
462};
463
464struct be_rxf_stats {
465 struct be_port_rxf_stats port[2];
466 u32 rx_drops_no_pbuf; /* dword 132*/
467 u32 rx_drops_no_txpb; /* dword 133*/
468 u32 rx_drops_no_erx_descr; /* dword 134*/
469 u32 rx_drops_no_tpre_descr; /* dword 135*/
470 u32 management_rx_port_packets; /* dword 136*/
471 u32 management_rx_port_bytes; /* dword 137*/
472 u32 management_rx_port_pause_frames; /* dword 138*/
473 u32 management_rx_port_errors; /* dword 139*/
474 u32 management_tx_port_packets; /* dword 140*/
475 u32 management_tx_port_bytes; /* dword 141*/
476 u32 management_tx_port_pause; /* dword 142*/
477 u32 management_rx_port_rxfifo_overflow; /* dword 143*/
478 u32 rx_drops_too_many_frags; /* dword 144*/
479 u32 rx_drops_invalid_ring; /* dword 145*/
480 u32 forwarded_packets; /* dword 146*/
481 u32 rx_drops_mtu; /* dword 147*/
482 u32 rsvd0[15];
483};
484
485struct be_erx_stats {
486 u32 rx_drops_no_fragments[44]; /* dwordS 0 to 43*/
487 u32 debug_wdma_sent_hold; /* dword 44*/
488 u32 debug_wdma_pbfree_sent_hold; /* dword 45*/
489 u32 debug_wdma_zerobyte_pbfree_sent_hold; /* dword 46*/
490 u32 debug_pmem_pbuf_dealloc; /* dword 47*/
491};
492
493struct be_hw_stats {
494 struct be_rxf_stats rxf;
495 u32 rsvd[48];
496 struct be_erx_stats erx;
497};
498
499struct be_cmd_req_get_stats {
500 struct be_cmd_req_hdr hdr;
501 u8 rsvd[sizeof(struct be_hw_stats)];
502};
503
504struct be_cmd_resp_get_stats {
505 struct be_cmd_resp_hdr hdr;
506 struct be_hw_stats hw_stats;
507};
508
509struct be_cmd_req_vlan_config {
510 struct be_cmd_req_hdr hdr;
511 u8 interface_id;
512 u8 promiscuous;
513 u8 untagged;
514 u8 num_vlan;
515 u16 normal_vlan[64];
516} __packed;
517
518struct be_cmd_req_promiscuous_config {
519 struct be_cmd_req_hdr hdr;
520 u8 port0_promiscuous;
521 u8 port1_promiscuous;
522 u16 rsvd0;
523} __packed;
524
525struct macaddr {
526 u8 byte[ETH_ALEN];
527};
528
529struct be_cmd_req_mcast_mac_config {
530 struct be_cmd_req_hdr hdr;
531 u16 num_mac;
532 u8 promiscuous;
533 u8 interface_id;
534 struct macaddr mac[32];
535} __packed;
536
537static inline struct be_hw_stats *
538hw_stats_from_cmd(struct be_cmd_resp_get_stats *cmd)
539{
540 return &cmd->hw_stats;
541}
542
543/******************** Link Status Query *******************/
544struct be_cmd_req_link_status {
545 struct be_cmd_req_hdr hdr;
546 u32 rsvd;
547};
548
549struct be_link_info {
550 u8 duplex;
551 u8 speed;
552 u8 fault;
553};
554
555enum {
556 PHY_LINK_DUPLEX_NONE = 0x0,
557 PHY_LINK_DUPLEX_HALF = 0x1,
558 PHY_LINK_DUPLEX_FULL = 0x2
559};
560
561enum {
562 PHY_LINK_SPEED_ZERO = 0x0, /* => No link */
563 PHY_LINK_SPEED_10MBPS = 0x1,
564 PHY_LINK_SPEED_100MBPS = 0x2,
565 PHY_LINK_SPEED_1GBPS = 0x3,
566 PHY_LINK_SPEED_10GBPS = 0x4
567};
568
569struct be_cmd_resp_link_status {
570 struct be_cmd_resp_hdr hdr;
571 u8 physical_port;
572 u8 mac_duplex;
573 u8 mac_speed;
574 u8 mac_fault;
575 u8 mgmt_mac_duplex;
576 u8 mgmt_mac_speed;
577 u16 rsvd0;
578} __packed;
579
580/******************** Get FW Version *******************/
581#define FW_VER_LEN 32
582struct be_cmd_req_get_fw_version {
583 struct be_cmd_req_hdr hdr;
584 u8 rsvd0[FW_VER_LEN];
585 u8 rsvd1[FW_VER_LEN];
586} __packed;
587
588struct be_cmd_resp_get_fw_version {
589 struct be_cmd_resp_hdr hdr;
590 u8 firmware_version_string[FW_VER_LEN];
591 u8 fw_on_flash_version_string[FW_VER_LEN];
592} __packed;
593
594/******************** Set Flow Contrl *******************/
595struct be_cmd_req_set_flow_control {
596 struct be_cmd_req_hdr hdr;
597 u16 tx_flow_control;
598 u16 rx_flow_control;
599} __packed;
600
601/******************** Get Flow Contrl *******************/
602struct be_cmd_req_get_flow_control {
603 struct be_cmd_req_hdr hdr;
604 u32 rsvd;
605};
606
607struct be_cmd_resp_get_flow_control {
608 struct be_cmd_resp_hdr hdr;
609 u16 tx_flow_control;
610 u16 rx_flow_control;
611} __packed;
612
613/******************** Modify EQ Delay *******************/
614struct be_cmd_req_modify_eq_delay {
615 struct be_cmd_req_hdr hdr;
616 u32 num_eq;
617 struct {
618 u32 eq_id;
619 u32 phase;
620 u32 delay_multiplier;
621 } delay[8];
622} __packed;
623
624struct be_cmd_resp_modify_eq_delay {
625 struct be_cmd_resp_hdr hdr;
626 u32 rsvd0;
627} __packed;
628
629/******************** Get FW Config *******************/
630struct be_cmd_req_query_fw_cfg {
631 struct be_cmd_req_hdr hdr;
632 u32 rsvd[30];
633};
634
635struct be_cmd_resp_query_fw_cfg {
636 struct be_cmd_resp_hdr hdr;
637 u32 be_config_number;
638 u32 asic_revision;
639 u32 phys_port;
640 u32 function_mode;
641 u32 rsvd[26];
642};
643
644extern int be_pci_fnum_get(struct be_ctrl_info *ctrl);
645extern int be_cmd_POST(struct be_ctrl_info *ctrl);
646extern int be_cmd_mac_addr_query(struct be_ctrl_info *ctrl, u8 *mac_addr,
647 u8 type, bool permanent, u32 if_handle);
648extern int be_cmd_pmac_add(struct be_ctrl_info *ctrl, u8 *mac_addr,
649 u32 if_id, u32 *pmac_id);
650extern int be_cmd_pmac_del(struct be_ctrl_info *ctrl, u32 if_id, u32 pmac_id);
651extern int be_cmd_if_create(struct be_ctrl_info *ctrl, u32 if_flags, u8 *mac,
652 bool pmac_invalid, u32 *if_handle, u32 *pmac_id);
653extern int be_cmd_if_destroy(struct be_ctrl_info *ctrl, u32 if_handle);
654extern int be_cmd_eq_create(struct be_ctrl_info *ctrl,
655 struct be_queue_info *eq, int eq_delay);
656extern int be_cmd_cq_create(struct be_ctrl_info *ctrl,
657 struct be_queue_info *cq, struct be_queue_info *eq,
658 bool sol_evts, bool no_delay,
659 int num_cqe_dma_coalesce);
660extern int be_cmd_txq_create(struct be_ctrl_info *ctrl,
661 struct be_queue_info *txq,
662 struct be_queue_info *cq);
663extern int be_cmd_rxq_create(struct be_ctrl_info *ctrl,
664 struct be_queue_info *rxq, u16 cq_id,
665 u16 frag_size, u16 max_frame_size, u32 if_id,
666 u32 rss);
667extern int be_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
668 int type);
669extern int be_cmd_link_status_query(struct be_ctrl_info *ctrl,
670 struct be_link_info *link);
671extern int be_cmd_reset(struct be_ctrl_info *ctrl);
672extern int be_cmd_get_stats(struct be_ctrl_info *ctrl,
673 struct be_dma_mem *nonemb_cmd);
674extern int be_cmd_get_fw_ver(struct be_ctrl_info *ctrl, char *fw_ver);
675
676extern int be_cmd_modify_eqd(struct be_ctrl_info *ctrl, u32 eq_id, u32 eqd);
677extern int be_cmd_vlan_config(struct be_ctrl_info *ctrl, u32 if_id,
678 u16 *vtag_array, u32 num, bool untagged,
679 bool promiscuous);
680extern int be_cmd_promiscuous_config(struct be_ctrl_info *ctrl,
681 u8 port_num, bool en);
682extern int be_cmd_mcast_mac_set(struct be_ctrl_info *ctrl, u32 if_id,
683 u8 *mac_table, u32 num, bool promiscuous);
684extern int be_cmd_set_flow_control(struct be_ctrl_info *ctrl,
685 u32 tx_fc, u32 rx_fc);
686extern int be_cmd_get_flow_control(struct be_ctrl_info *ctrl,
687 u32 *tx_fc, u32 *rx_fc);
688extern int be_cmd_query_fw_cfg(struct be_ctrl_info *ctrl, u32 *port_num);
diff --git a/drivers/net/benet/be_ethtool.c b/drivers/net/benet/be_ethtool.c
new file mode 100644
index 000000000000..04f4b73fa8d8
--- /dev/null
+++ b/drivers/net/benet/be_ethtool.c
@@ -0,0 +1,362 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#include "be.h"
19#include <linux/ethtool.h>
20
21struct be_ethtool_stat {
22 char desc[ETH_GSTRING_LEN];
23 int type;
24 int size;
25 int offset;
26};
27
28enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
29#define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
30 offsetof(_struct, field)
31#define NETSTAT_INFO(field) #field, NETSTAT,\
32 FIELDINFO(struct net_device_stats,\
33 field)
34#define DRVSTAT_INFO(field) #field, DRVSTAT,\
35 FIELDINFO(struct be_drvr_stats, field)
36#define MISCSTAT_INFO(field) #field, MISCSTAT,\
37 FIELDINFO(struct be_rxf_stats, field)
38#define PORTSTAT_INFO(field) #field, PORTSTAT,\
39 FIELDINFO(struct be_port_rxf_stats, \
40 field)
41#define ERXSTAT_INFO(field) #field, ERXSTAT,\
42 FIELDINFO(struct be_erx_stats, field)
43
44static const struct be_ethtool_stat et_stats[] = {
45 {NETSTAT_INFO(rx_packets)},
46 {NETSTAT_INFO(tx_packets)},
47 {NETSTAT_INFO(rx_bytes)},
48 {NETSTAT_INFO(tx_bytes)},
49 {NETSTAT_INFO(rx_errors)},
50 {NETSTAT_INFO(tx_errors)},
51 {NETSTAT_INFO(rx_dropped)},
52 {NETSTAT_INFO(tx_dropped)},
53 {DRVSTAT_INFO(be_tx_reqs)},
54 {DRVSTAT_INFO(be_tx_stops)},
55 {DRVSTAT_INFO(be_fwd_reqs)},
56 {DRVSTAT_INFO(be_tx_wrbs)},
57 {DRVSTAT_INFO(be_polls)},
58 {DRVSTAT_INFO(be_tx_events)},
59 {DRVSTAT_INFO(be_rx_events)},
60 {DRVSTAT_INFO(be_tx_compl)},
61 {DRVSTAT_INFO(be_rx_compl)},
62 {DRVSTAT_INFO(be_ethrx_post_fail)},
63 {DRVSTAT_INFO(be_802_3_dropped_frames)},
64 {DRVSTAT_INFO(be_802_3_malformed_frames)},
65 {DRVSTAT_INFO(be_tx_rate)},
66 {DRVSTAT_INFO(be_rx_rate)},
67 {PORTSTAT_INFO(rx_unicast_frames)},
68 {PORTSTAT_INFO(rx_multicast_frames)},
69 {PORTSTAT_INFO(rx_broadcast_frames)},
70 {PORTSTAT_INFO(rx_crc_errors)},
71 {PORTSTAT_INFO(rx_alignment_symbol_errors)},
72 {PORTSTAT_INFO(rx_pause_frames)},
73 {PORTSTAT_INFO(rx_control_frames)},
74 {PORTSTAT_INFO(rx_in_range_errors)},
75 {PORTSTAT_INFO(rx_out_range_errors)},
76 {PORTSTAT_INFO(rx_frame_too_long)},
77 {PORTSTAT_INFO(rx_address_match_errors)},
78 {PORTSTAT_INFO(rx_vlan_mismatch)},
79 {PORTSTAT_INFO(rx_dropped_too_small)},
80 {PORTSTAT_INFO(rx_dropped_too_short)},
81 {PORTSTAT_INFO(rx_dropped_header_too_small)},
82 {PORTSTAT_INFO(rx_dropped_tcp_length)},
83 {PORTSTAT_INFO(rx_dropped_runt)},
84 {PORTSTAT_INFO(rx_fifo_overflow)},
85 {PORTSTAT_INFO(rx_input_fifo_overflow)},
86 {PORTSTAT_INFO(rx_ip_checksum_errs)},
87 {PORTSTAT_INFO(rx_tcp_checksum_errs)},
88 {PORTSTAT_INFO(rx_udp_checksum_errs)},
89 {PORTSTAT_INFO(rx_non_rss_packets)},
90 {PORTSTAT_INFO(rx_ipv4_packets)},
91 {PORTSTAT_INFO(rx_ipv6_packets)},
92 {PORTSTAT_INFO(tx_unicastframes)},
93 {PORTSTAT_INFO(tx_multicastframes)},
94 {PORTSTAT_INFO(tx_broadcastframes)},
95 {PORTSTAT_INFO(tx_pauseframes)},
96 {PORTSTAT_INFO(tx_controlframes)},
97 {MISCSTAT_INFO(rx_drops_no_pbuf)},
98 {MISCSTAT_INFO(rx_drops_no_txpb)},
99 {MISCSTAT_INFO(rx_drops_no_erx_descr)},
100 {MISCSTAT_INFO(rx_drops_no_tpre_descr)},
101 {MISCSTAT_INFO(rx_drops_too_many_frags)},
102 {MISCSTAT_INFO(rx_drops_invalid_ring)},
103 {MISCSTAT_INFO(forwarded_packets)},
104 {MISCSTAT_INFO(rx_drops_mtu)},
105 {ERXSTAT_INFO(rx_drops_no_fragments)},
106};
107#define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
108
109static void
110be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
111{
112 struct be_adapter *adapter = netdev_priv(netdev);
113
114 strcpy(drvinfo->driver, DRV_NAME);
115 strcpy(drvinfo->version, DRV_VER);
116 strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
117 strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
118 drvinfo->testinfo_len = 0;
119 drvinfo->regdump_len = 0;
120 drvinfo->eedump_len = 0;
121}
122
123static int
124be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
125{
126 struct be_adapter *adapter = netdev_priv(netdev);
127 struct be_eq_obj *rx_eq = &adapter->rx_eq;
128 struct be_eq_obj *tx_eq = &adapter->tx_eq;
129
130 coalesce->rx_max_coalesced_frames = adapter->max_rx_coal;
131
132 coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
133 coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
134 coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
135
136 coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
137 coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
138 coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
139
140 coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
141 coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
142
143 return 0;
144}
145
146/*
147 * This routine is used to set interrup coalescing delay *as well as*
148 * the number of pkts to coalesce for LRO.
149 */
150static int
151be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
152{
153 struct be_adapter *adapter = netdev_priv(netdev);
154 struct be_ctrl_info *ctrl = &adapter->ctrl;
155 struct be_eq_obj *rx_eq = &adapter->rx_eq;
156 struct be_eq_obj *tx_eq = &adapter->tx_eq;
157 u32 tx_max, tx_min, tx_cur;
158 u32 rx_max, rx_min, rx_cur;
159 int status = 0;
160
161 if (coalesce->use_adaptive_tx_coalesce == 1)
162 return -EINVAL;
163
164 adapter->max_rx_coal = coalesce->rx_max_coalesced_frames;
165 if (adapter->max_rx_coal > MAX_SKB_FRAGS)
166 adapter->max_rx_coal = MAX_SKB_FRAGS - 1;
167
168 /* if AIC is being turned on now, start with an EQD of 0 */
169 if (rx_eq->enable_aic == 0 &&
170 coalesce->use_adaptive_rx_coalesce == 1) {
171 rx_eq->cur_eqd = 0;
172 }
173 rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
174
175 rx_max = coalesce->rx_coalesce_usecs_high;
176 rx_min = coalesce->rx_coalesce_usecs_low;
177 rx_cur = coalesce->rx_coalesce_usecs;
178
179 tx_max = coalesce->tx_coalesce_usecs_high;
180 tx_min = coalesce->tx_coalesce_usecs_low;
181 tx_cur = coalesce->tx_coalesce_usecs;
182
183 if (tx_cur > BE_MAX_EQD)
184 tx_cur = BE_MAX_EQD;
185 if (tx_eq->cur_eqd != tx_cur) {
186 status = be_cmd_modify_eqd(ctrl, tx_eq->q.id, tx_cur);
187 if (!status)
188 tx_eq->cur_eqd = tx_cur;
189 }
190
191 if (rx_eq->enable_aic) {
192 if (rx_max > BE_MAX_EQD)
193 rx_max = BE_MAX_EQD;
194 if (rx_min > rx_max)
195 rx_min = rx_max;
196 rx_eq->max_eqd = rx_max;
197 rx_eq->min_eqd = rx_min;
198 if (rx_eq->cur_eqd > rx_max)
199 rx_eq->cur_eqd = rx_max;
200 if (rx_eq->cur_eqd < rx_min)
201 rx_eq->cur_eqd = rx_min;
202 } else {
203 if (rx_cur > BE_MAX_EQD)
204 rx_cur = BE_MAX_EQD;
205 if (rx_eq->cur_eqd != rx_cur) {
206 status = be_cmd_modify_eqd(ctrl, rx_eq->q.id, rx_cur);
207 if (!status)
208 rx_eq->cur_eqd = rx_cur;
209 }
210 }
211 return 0;
212}
213
214static u32 be_get_rx_csum(struct net_device *netdev)
215{
216 struct be_adapter *adapter = netdev_priv(netdev);
217
218 return adapter->rx_csum;
219}
220
221static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
222{
223 struct be_adapter *adapter = netdev_priv(netdev);
224
225 if (data)
226 adapter->rx_csum = true;
227 else
228 adapter->rx_csum = false;
229
230 return 0;
231}
232
233static void
234be_get_ethtool_stats(struct net_device *netdev,
235 struct ethtool_stats *stats, uint64_t *data)
236{
237 struct be_adapter *adapter = netdev_priv(netdev);
238 struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
239 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
240 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
241 struct be_port_rxf_stats *port_stats =
242 &rxf_stats->port[adapter->port_num];
243 struct net_device_stats *net_stats = &adapter->stats.net_stats;
244 struct be_erx_stats *erx_stats = &hw_stats->erx;
245 void *p = NULL;
246 int i;
247
248 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
249 switch (et_stats[i].type) {
250 case NETSTAT:
251 p = net_stats;
252 break;
253 case DRVSTAT:
254 p = drvr_stats;
255 break;
256 case PORTSTAT:
257 p = port_stats;
258 break;
259 case MISCSTAT:
260 p = rxf_stats;
261 break;
262 case ERXSTAT: /* Currently only one ERX stat is provided */
263 p = (u32 *)erx_stats + adapter->rx_obj.q.id;
264 break;
265 }
266
267 p = (u8 *)p + et_stats[i].offset;
268 data[i] = (et_stats[i].size == sizeof(u64)) ?
269 *(u64 *)p: *(u32 *)p;
270 }
271
272 return;
273}
274
275static void
276be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
277 uint8_t *data)
278{
279 int i;
280 switch (stringset) {
281 case ETH_SS_STATS:
282 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
283 memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
284 data += ETH_GSTRING_LEN;
285 }
286 break;
287 }
288}
289
290static int be_get_stats_count(struct net_device *netdev)
291{
292 return ETHTOOL_STATS_NUM;
293}
294
295static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
296{
297 ecmd->speed = SPEED_10000;
298 ecmd->duplex = DUPLEX_FULL;
299 ecmd->autoneg = AUTONEG_DISABLE;
300 return 0;
301}
302
303static void
304be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
305{
306 struct be_adapter *adapter = netdev_priv(netdev);
307
308 ring->rx_max_pending = adapter->rx_obj.q.len;
309 ring->tx_max_pending = adapter->tx_obj.q.len;
310
311 ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
312 ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
313}
314
315static void
316be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
317{
318 struct be_adapter *adapter = netdev_priv(netdev);
319
320 be_cmd_get_flow_control(&adapter->ctrl, &ecmd->tx_pause,
321 &ecmd->rx_pause);
322 ecmd->autoneg = AUTONEG_ENABLE;
323}
324
325static int
326be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
327{
328 struct be_adapter *adapter = netdev_priv(netdev);
329 int status;
330
331 if (ecmd->autoneg != AUTONEG_ENABLE)
332 return -EINVAL;
333
334 status = be_cmd_set_flow_control(&adapter->ctrl, ecmd->tx_pause,
335 ecmd->rx_pause);
336 if (!status)
337 dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
338
339 return status;
340}
341
342struct ethtool_ops be_ethtool_ops = {
343 .get_settings = be_get_settings,
344 .get_drvinfo = be_get_drvinfo,
345 .get_link = ethtool_op_get_link,
346 .get_coalesce = be_get_coalesce,
347 .set_coalesce = be_set_coalesce,
348 .get_ringparam = be_get_ringparam,
349 .get_pauseparam = be_get_pauseparam,
350 .set_pauseparam = be_set_pauseparam,
351 .get_rx_csum = be_get_rx_csum,
352 .set_rx_csum = be_set_rx_csum,
353 .get_tx_csum = ethtool_op_get_tx_csum,
354 .set_tx_csum = ethtool_op_set_tx_csum,
355 .get_sg = ethtool_op_get_sg,
356 .set_sg = ethtool_op_set_sg,
357 .get_tso = ethtool_op_get_tso,
358 .set_tso = ethtool_op_set_tso,
359 .get_strings = be_get_stat_strings,
360 .get_stats_count = be_get_stats_count,
361 .get_ethtool_stats = be_get_ethtool_stats,
362};
diff --git a/drivers/net/benet/be_hw.h b/drivers/net/benet/be_hw.h
new file mode 100644
index 000000000000..b132aa4893ca
--- /dev/null
+++ b/drivers/net/benet/be_hw.h
@@ -0,0 +1,211 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18/********* Mailbox door bell *************/
19/* Used for driver communication with the FW.
20 * The software must write this register twice to post any command. First,
21 * it writes the register with hi=1 and the upper bits of the physical address
22 * for the MAILBOX structure. Software must poll the ready bit until this
23 * is acknowledged. Then, sotware writes the register with hi=0 with the lower
24 * bits in the address. It must poll the ready bit until the command is
25 * complete. Upon completion, the MAILBOX will contain a valid completion
26 * queue entry.
27 */
28#define MPU_MAILBOX_DB_OFFSET 0x160
29#define MPU_MAILBOX_DB_RDY_MASK 0x1 /* bit 0 */
30#define MPU_MAILBOX_DB_HI_MASK 0x2 /* bit 1 */
31
32#define MPU_EP_CONTROL 0
33
34/********** MPU semphore ******************/
35#define MPU_EP_SEMAPHORE_OFFSET 0xac
36#define EP_SEMAPHORE_POST_STAGE_MASK 0x0000FFFF
37#define EP_SEMAPHORE_POST_ERR_MASK 0x1
38#define EP_SEMAPHORE_POST_ERR_SHIFT 31
39/* MPU semphore POST stage values */
40#define POST_STAGE_AWAITING_HOST_RDY 0x1 /* FW awaiting goahead from host */
41#define POST_STAGE_HOST_RDY 0x2 /* Host has given go-ahed to FW */
42#define POST_STAGE_BE_RESET 0x3 /* Host wants to reset chip */
43#define POST_STAGE_ARMFW_RDY 0xc000 /* FW is done with POST */
44
45/********* Memory BAR register ************/
46#define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET 0xfc
47/* Host Interrupt Enable, if set interrupts are enabled although "PCI Interrupt
48 * Disable" may still globally block interrupts in addition to individual
49 * interrupt masks; a mechanism for the device driver to block all interrupts
50 * atomically without having to arbitrate for the PCI Interrupt Disable bit
51 * with the OS.
52 */
53#define MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK (1 << 29) /* bit 29 */
54/* PCI physical function number */
55#define MEMBAR_CTRL_INT_CTRL_PFUNC_MASK 0x7 /* bits 26 - 28 */
56#define MEMBAR_CTRL_INT_CTRL_PFUNC_SHIFT 26
57
58/********* Event Q door bell *************/
59#define DB_EQ_OFFSET DB_CQ_OFFSET
60#define DB_EQ_RING_ID_MASK 0x1FF /* bits 0 - 8 */
61/* Clear the interrupt for this eq */
62#define DB_EQ_CLR_SHIFT (9) /* bit 9 */
63/* Must be 1 */
64#define DB_EQ_EVNT_SHIFT (10) /* bit 10 */
65/* Number of event entries processed */
66#define DB_EQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
67/* Rearm bit */
68#define DB_EQ_REARM_SHIFT (29) /* bit 29 */
69
70/********* Compl Q door bell *************/
71#define DB_CQ_OFFSET 0x120
72#define DB_CQ_RING_ID_MASK 0x3FF /* bits 0 - 9 */
73/* Number of event entries processed */
74#define DB_CQ_NUM_POPPED_SHIFT (16) /* bits 16 - 28 */
75/* Rearm bit */
76#define DB_CQ_REARM_SHIFT (29) /* bit 29 */
77
78/********** TX ULP door bell *************/
79#define DB_TXULP1_OFFSET 0x60
80#define DB_TXULP_RING_ID_MASK 0x7FF /* bits 0 - 10 */
81/* Number of tx entries posted */
82#define DB_TXULP_NUM_POSTED_SHIFT (16) /* bits 16 - 29 */
83#define DB_TXULP_NUM_POSTED_MASK 0x3FFF /* bits 16 - 29 */
84
85/********** RQ(erx) door bell ************/
86#define DB_RQ_OFFSET 0x100
87#define DB_RQ_RING_ID_MASK 0x3FF /* bits 0 - 9 */
88/* Number of rx frags posted */
89#define DB_RQ_NUM_POSTED_SHIFT (24) /* bits 24 - 31 */
90
91/*
92 * BE descriptors: host memory data structures whose formats
93 * are hardwired in BE silicon.
94 */
95/* Event Queue Descriptor */
96#define EQ_ENTRY_VALID_MASK 0x1 /* bit 0 */
97#define EQ_ENTRY_RES_ID_MASK 0xFFFF /* bits 16 - 31 */
98#define EQ_ENTRY_RES_ID_SHIFT 16
99struct be_eq_entry {
100 u32 evt;
101};
102
103/* TX Queue Descriptor */
104#define ETH_WRB_FRAG_LEN_MASK 0xFFFF
105struct be_eth_wrb {
106 u32 frag_pa_hi; /* dword 0 */
107 u32 frag_pa_lo; /* dword 1 */
108 u32 rsvd0; /* dword 2 */
109 u32 frag_len; /* dword 3: bits 0 - 15 */
110} __packed;
111
112/* Pseudo amap definition for eth_hdr_wrb in which each bit of the
113 * actual structure is defined as a byte : used to calculate
114 * offset/shift/mask of each field */
115struct amap_eth_hdr_wrb {
116 u8 rsvd0[32]; /* dword 0 */
117 u8 rsvd1[32]; /* dword 1 */
118 u8 complete; /* dword 2 */
119 u8 event;
120 u8 crc;
121 u8 forward;
122 u8 ipsec;
123 u8 mgmt;
124 u8 ipcs;
125 u8 udpcs;
126 u8 tcpcs;
127 u8 lso;
128 u8 vlan;
129 u8 gso[2];
130 u8 num_wrb[5];
131 u8 lso_mss[14];
132 u8 len[16]; /* dword 3 */
133 u8 vlan_tag[16];
134} __packed;
135
136struct be_eth_hdr_wrb {
137 u32 dw[4];
138};
139
140/* TX Compl Queue Descriptor */
141
142/* Pseudo amap definition for eth_tx_compl in which each bit of the
143 * actual structure is defined as a byte: used to calculate
144 * offset/shift/mask of each field */
145struct amap_eth_tx_compl {
146 u8 wrb_index[16]; /* dword 0 */
147 u8 ct[2]; /* dword 0 */
148 u8 port[2]; /* dword 0 */
149 u8 rsvd0[8]; /* dword 0 */
150 u8 status[4]; /* dword 0 */
151 u8 user_bytes[16]; /* dword 1 */
152 u8 nwh_bytes[8]; /* dword 1 */
153 u8 lso; /* dword 1 */
154 u8 cast_enc[2]; /* dword 1 */
155 u8 rsvd1[5]; /* dword 1 */
156 u8 rsvd2[32]; /* dword 2 */
157 u8 pkts[16]; /* dword 3 */
158 u8 ringid[11]; /* dword 3 */
159 u8 hash_val[4]; /* dword 3 */
160 u8 valid; /* dword 3 */
161} __packed;
162
163struct be_eth_tx_compl {
164 u32 dw[4];
165};
166
167/* RX Queue Descriptor */
168struct be_eth_rx_d {
169 u32 fragpa_hi;
170 u32 fragpa_lo;
171};
172
173/* RX Compl Queue Descriptor */
174
175/* Pseudo amap definition for eth_rx_compl in which each bit of the
176 * actual structure is defined as a byte: used to calculate
177 * offset/shift/mask of each field */
178struct amap_eth_rx_compl {
179 u8 vlan_tag[16]; /* dword 0 */
180 u8 pktsize[14]; /* dword 0 */
181 u8 port; /* dword 0 */
182 u8 ip_opt; /* dword 0 */
183 u8 err; /* dword 1 */
184 u8 rsshp; /* dword 1 */
185 u8 ipf; /* dword 1 */
186 u8 tcpf; /* dword 1 */
187 u8 udpf; /* dword 1 */
188 u8 ipcksm; /* dword 1 */
189 u8 l4_cksm; /* dword 1 */
190 u8 ip_version; /* dword 1 */
191 u8 macdst[6]; /* dword 1 */
192 u8 vtp; /* dword 1 */
193 u8 rsvd0; /* dword 1 */
194 u8 fragndx[10]; /* dword 1 */
195 u8 ct[2]; /* dword 1 */
196 u8 sw; /* dword 1 */
197 u8 numfrags[3]; /* dword 1 */
198 u8 rss_flush; /* dword 2 */
199 u8 cast_enc[2]; /* dword 2 */
200 u8 qnq; /* dword 2 */
201 u8 rss_bank; /* dword 2 */
202 u8 rsvd1[23]; /* dword 2 */
203 u8 lro_pkt; /* dword 2 */
204 u8 rsvd2[2]; /* dword 2 */
205 u8 valid; /* dword 2 */
206 u8 rsshash[32]; /* dword 3 */
207} __packed;
208
209struct be_eth_rx_compl {
210 u32 dw[4];
211};
diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
new file mode 100644
index 000000000000..897a63de5bdb
--- /dev/null
+++ b/drivers/net/benet/be_main.c
@@ -0,0 +1,1903 @@
1/*
2 * Copyright (C) 2005 - 2009 ServerEngines
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@serverengines.com
12 *
13 * ServerEngines
14 * 209 N. Fair Oaks Ave
15 * Sunnyvale, CA 94085
16 */
17
18#include "be.h"
19
20MODULE_VERSION(DRV_VER);
21MODULE_DEVICE_TABLE(pci, be_dev_ids);
22MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
23MODULE_AUTHOR("ServerEngines Corporation");
24MODULE_LICENSE("GPL");
25
26static unsigned int rx_frag_size = 2048;
27module_param(rx_frag_size, uint, S_IRUGO);
28MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
29
30#define BE_VENDOR_ID 0x19a2
31#define BE2_DEVICE_ID_1 0x0211
32static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
33 { PCI_DEVICE(BE_VENDOR_ID, BE2_DEVICE_ID_1) },
34 { 0 }
35};
36MODULE_DEVICE_TABLE(pci, be_dev_ids);
37
38static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
39{
40 struct be_dma_mem *mem = &q->dma_mem;
41 if (mem->va)
42 pci_free_consistent(adapter->pdev, mem->size,
43 mem->va, mem->dma);
44}
45
46static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
47 u16 len, u16 entry_size)
48{
49 struct be_dma_mem *mem = &q->dma_mem;
50
51 memset(q, 0, sizeof(*q));
52 q->len = len;
53 q->entry_size = entry_size;
54 mem->size = len * entry_size;
55 mem->va = pci_alloc_consistent(adapter->pdev, mem->size, &mem->dma);
56 if (!mem->va)
57 return -1;
58 memset(mem->va, 0, mem->size);
59 return 0;
60}
61
62static inline void *queue_head_node(struct be_queue_info *q)
63{
64 return q->dma_mem.va + q->head * q->entry_size;
65}
66
67static inline void *queue_tail_node(struct be_queue_info *q)
68{
69 return q->dma_mem.va + q->tail * q->entry_size;
70}
71
72static inline void queue_head_inc(struct be_queue_info *q)
73{
74 index_inc(&q->head, q->len);
75}
76
77static inline void queue_tail_inc(struct be_queue_info *q)
78{
79 index_inc(&q->tail, q->len);
80}
81
82static void be_intr_set(struct be_ctrl_info *ctrl, bool enable)
83{
84 u8 __iomem *addr = ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET;
85 u32 reg = ioread32(addr);
86 u32 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
87 if (!enabled && enable) {
88 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
89 } else if (enabled && !enable) {
90 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
91 } else {
92 printk(KERN_WARNING DRV_NAME
93 ": bad value in membar_int_ctrl reg=0x%x\n", reg);
94 return;
95 }
96 iowrite32(reg, addr);
97}
98
99static void be_rxq_notify(struct be_ctrl_info *ctrl, u16 qid, u16 posted)
100{
101 u32 val = 0;
102 val |= qid & DB_RQ_RING_ID_MASK;
103 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
104 iowrite32(val, ctrl->db + DB_RQ_OFFSET);
105}
106
107static void be_txq_notify(struct be_ctrl_info *ctrl, u16 qid, u16 posted)
108{
109 u32 val = 0;
110 val |= qid & DB_TXULP_RING_ID_MASK;
111 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
112 iowrite32(val, ctrl->db + DB_TXULP1_OFFSET);
113}
114
115static void be_eq_notify(struct be_ctrl_info *ctrl, u16 qid,
116 bool arm, bool clear_int, u16 num_popped)
117{
118 u32 val = 0;
119 val |= qid & DB_EQ_RING_ID_MASK;
120 if (arm)
121 val |= 1 << DB_EQ_REARM_SHIFT;
122 if (clear_int)
123 val |= 1 << DB_EQ_CLR_SHIFT;
124 val |= 1 << DB_EQ_EVNT_SHIFT;
125 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
126 iowrite32(val, ctrl->db + DB_EQ_OFFSET);
127}
128
129static void be_cq_notify(struct be_ctrl_info *ctrl, u16 qid,
130 bool arm, u16 num_popped)
131{
132 u32 val = 0;
133 val |= qid & DB_CQ_RING_ID_MASK;
134 if (arm)
135 val |= 1 << DB_CQ_REARM_SHIFT;
136 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
137 iowrite32(val, ctrl->db + DB_CQ_OFFSET);
138}
139
140
141static int be_mac_addr_set(struct net_device *netdev, void *p)
142{
143 struct be_adapter *adapter = netdev_priv(netdev);
144 struct sockaddr *addr = p;
145 int status = 0;
146
147 if (netif_running(netdev)) {
148 status = be_cmd_pmac_del(&adapter->ctrl, adapter->if_handle,
149 adapter->pmac_id);
150 if (status)
151 return status;
152
153 status = be_cmd_pmac_add(&adapter->ctrl, (u8 *)addr->sa_data,
154 adapter->if_handle, &adapter->pmac_id);
155 }
156
157 if (!status)
158 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
159
160 return status;
161}
162
163static void netdev_stats_update(struct be_adapter *adapter)
164{
165 struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
166 struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
167 struct be_port_rxf_stats *port_stats =
168 &rxf_stats->port[adapter->port_num];
169 struct net_device_stats *dev_stats = &adapter->stats.net_stats;
170
171 dev_stats->rx_packets = port_stats->rx_total_frames;
172 dev_stats->tx_packets = port_stats->tx_unicastframes +
173 port_stats->tx_multicastframes + port_stats->tx_broadcastframes;
174 dev_stats->rx_bytes = (u64) port_stats->rx_bytes_msd << 32 |
175 (u64) port_stats->rx_bytes_lsd;
176 dev_stats->tx_bytes = (u64) port_stats->tx_bytes_msd << 32 |
177 (u64) port_stats->tx_bytes_lsd;
178
179 /* bad pkts received */
180 dev_stats->rx_errors = port_stats->rx_crc_errors +
181 port_stats->rx_alignment_symbol_errors +
182 port_stats->rx_in_range_errors +
183 port_stats->rx_out_range_errors + port_stats->rx_frame_too_long;
184
185 /* packet transmit problems */
186 dev_stats->tx_errors = 0;
187
188 /* no space in linux buffers */
189 dev_stats->rx_dropped = 0;
190
191 /* no space available in linux */
192 dev_stats->tx_dropped = 0;
193
194 dev_stats->multicast = port_stats->tx_multicastframes;
195 dev_stats->collisions = 0;
196
197 /* detailed rx errors */
198 dev_stats->rx_length_errors = port_stats->rx_in_range_errors +
199 port_stats->rx_out_range_errors + port_stats->rx_frame_too_long;
200 /* receive ring buffer overflow */
201 dev_stats->rx_over_errors = 0;
202 dev_stats->rx_crc_errors = port_stats->rx_crc_errors;
203
204 /* frame alignment errors */
205 dev_stats->rx_frame_errors = port_stats->rx_alignment_symbol_errors;
206 /* receiver fifo overrun */
207 /* drops_no_pbuf is no per i/f, it's per BE card */
208 dev_stats->rx_fifo_errors = port_stats->rx_fifo_overflow +
209 port_stats->rx_input_fifo_overflow +
210 rxf_stats->rx_drops_no_pbuf;
211 /* receiver missed packetd */
212 dev_stats->rx_missed_errors = 0;
213 /* detailed tx_errors */
214 dev_stats->tx_aborted_errors = 0;
215 dev_stats->tx_carrier_errors = 0;
216 dev_stats->tx_fifo_errors = 0;
217 dev_stats->tx_heartbeat_errors = 0;
218 dev_stats->tx_window_errors = 0;
219}
220
221static void be_link_status_update(struct be_adapter *adapter)
222{
223 struct be_link_info *prev = &adapter->link;
224 struct be_link_info now = { 0 };
225 struct net_device *netdev = adapter->netdev;
226
227 be_cmd_link_status_query(&adapter->ctrl, &now);
228
229 /* If link came up or went down */
230 if (now.speed != prev->speed && (now.speed == PHY_LINK_SPEED_ZERO ||
231 prev->speed == PHY_LINK_SPEED_ZERO)) {
232 if (now.speed == PHY_LINK_SPEED_ZERO) {
233 netif_stop_queue(netdev);
234 netif_carrier_off(netdev);
235 printk(KERN_INFO "%s: Link down\n", netdev->name);
236 } else {
237 netif_start_queue(netdev);
238 netif_carrier_on(netdev);
239 printk(KERN_INFO "%s: Link up\n", netdev->name);
240 }
241 }
242 *prev = now;
243}
244
245/* Update the EQ delay n BE based on the RX frags consumed / sec */
246static void be_rx_eqd_update(struct be_adapter *adapter)
247{
248 u32 eqd;
249 struct be_ctrl_info *ctrl = &adapter->ctrl;
250 struct be_eq_obj *rx_eq = &adapter->rx_eq;
251 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
252
253 /* Update once a second */
254 if (((jiffies - stats->rx_fps_jiffies) < HZ) || rx_eq->enable_aic == 0)
255 return;
256
257 stats->be_rx_fps = (stats->be_rx_frags - stats->be_prev_rx_frags) /
258 ((jiffies - stats->rx_fps_jiffies) / HZ);
259
260 stats->rx_fps_jiffies = jiffies;
261 stats->be_prev_rx_frags = stats->be_rx_frags;
262 eqd = stats->be_rx_fps / 110000;
263 eqd = eqd << 3;
264 if (eqd > rx_eq->max_eqd)
265 eqd = rx_eq->max_eqd;
266 if (eqd < rx_eq->min_eqd)
267 eqd = rx_eq->min_eqd;
268 if (eqd < 10)
269 eqd = 0;
270 if (eqd != rx_eq->cur_eqd)
271 be_cmd_modify_eqd(ctrl, rx_eq->q.id, eqd);
272
273 rx_eq->cur_eqd = eqd;
274}
275
276static void be_worker(struct work_struct *work)
277{
278 struct be_adapter *adapter =
279 container_of(work, struct be_adapter, work.work);
280 int status;
281
282 /* Check link */
283 be_link_status_update(adapter);
284
285 /* Get Stats */
286 status = be_cmd_get_stats(&adapter->ctrl, &adapter->stats.cmd);
287 if (!status)
288 netdev_stats_update(adapter);
289
290 /* Set EQ delay */
291 be_rx_eqd_update(adapter);
292
293 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
294}
295
296static struct net_device_stats *be_get_stats(struct net_device *dev)
297{
298 struct be_adapter *adapter = netdev_priv(dev);
299
300 return &adapter->stats.net_stats;
301}
302
303static void be_tx_stats_update(struct be_adapter *adapter,
304 u32 wrb_cnt, u32 copied, bool stopped)
305{
306 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
307 stats->be_tx_reqs++;
308 stats->be_tx_wrbs += wrb_cnt;
309 stats->be_tx_bytes += copied;
310 if (stopped)
311 stats->be_tx_stops++;
312
313 /* Update tx rate once in two seconds */
314 if ((jiffies - stats->be_tx_jiffies) > 2 * HZ) {
315 u32 r;
316 r = (stats->be_tx_bytes - stats->be_tx_bytes_prev) /
317 ((u32) (jiffies - stats->be_tx_jiffies) / HZ);
318 r = (r / 1000000); /* M bytes/s */
319 stats->be_tx_rate = (r * 8); /* M bits/s */
320 stats->be_tx_jiffies = jiffies;
321 stats->be_tx_bytes_prev = stats->be_tx_bytes;
322 }
323}
324
325/* Determine number of WRB entries needed to xmit data in an skb */
326static u32 wrb_cnt_for_skb(struct sk_buff *skb, bool *dummy)
327{
328 int cnt = 0;
329 while (skb) {
330 if (skb->len > skb->data_len)
331 cnt++;
332 cnt += skb_shinfo(skb)->nr_frags;
333 skb = skb_shinfo(skb)->frag_list;
334 }
335 /* to account for hdr wrb */
336 cnt++;
337 if (cnt & 1) {
338 /* add a dummy to make it an even num */
339 cnt++;
340 *dummy = true;
341 } else
342 *dummy = false;
343 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
344 return cnt;
345}
346
347static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
348{
349 wrb->frag_pa_hi = upper_32_bits(addr);
350 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
351 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
352}
353
354static void wrb_fill_hdr(struct be_eth_hdr_wrb *hdr, struct sk_buff *skb,
355 bool vlan, u32 wrb_cnt, u32 len)
356{
357 memset(hdr, 0, sizeof(*hdr));
358
359 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
360
361 if (skb_shinfo(skb)->gso_segs > 1 && skb_shinfo(skb)->gso_size) {
362 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
363 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
364 hdr, skb_shinfo(skb)->gso_size);
365 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
366 if (is_tcp_pkt(skb))
367 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
368 else if (is_udp_pkt(skb))
369 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
370 }
371
372 if (vlan && vlan_tx_tag_present(skb)) {
373 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
374 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag,
375 hdr, vlan_tx_tag_get(skb));
376 }
377
378 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
379 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, 1);
380 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
381 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
382}
383
384
385static int make_tx_wrbs(struct be_adapter *adapter,
386 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb)
387{
388 u64 busaddr;
389 u32 i, copied = 0;
390 struct pci_dev *pdev = adapter->pdev;
391 struct sk_buff *first_skb = skb;
392 struct be_queue_info *txq = &adapter->tx_obj.q;
393 struct be_eth_wrb *wrb;
394 struct be_eth_hdr_wrb *hdr;
395
396 atomic_add(wrb_cnt, &txq->used);
397 hdr = queue_head_node(txq);
398 queue_head_inc(txq);
399
400 while (skb) {
401 if (skb->len > skb->data_len) {
402 int len = skb->len - skb->data_len;
403 busaddr = pci_map_single(pdev, skb->data, len,
404 PCI_DMA_TODEVICE);
405 wrb = queue_head_node(txq);
406 wrb_fill(wrb, busaddr, len);
407 be_dws_cpu_to_le(wrb, sizeof(*wrb));
408 queue_head_inc(txq);
409 copied += len;
410 }
411
412 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
413 struct skb_frag_struct *frag =
414 &skb_shinfo(skb)->frags[i];
415 busaddr = pci_map_page(pdev, frag->page,
416 frag->page_offset,
417 frag->size, PCI_DMA_TODEVICE);
418 wrb = queue_head_node(txq);
419 wrb_fill(wrb, busaddr, frag->size);
420 be_dws_cpu_to_le(wrb, sizeof(*wrb));
421 queue_head_inc(txq);
422 copied += frag->size;
423 }
424 skb = skb_shinfo(skb)->frag_list;
425 }
426
427 if (dummy_wrb) {
428 wrb = queue_head_node(txq);
429 wrb_fill(wrb, 0, 0);
430 be_dws_cpu_to_le(wrb, sizeof(*wrb));
431 queue_head_inc(txq);
432 }
433
434 wrb_fill_hdr(hdr, first_skb, adapter->vlan_grp ? true : false,
435 wrb_cnt, copied);
436 be_dws_cpu_to_le(hdr, sizeof(*hdr));
437
438 return copied;
439}
440
441static int be_xmit(struct sk_buff *skb, struct net_device *netdev)
442{
443 struct be_adapter *adapter = netdev_priv(netdev);
444 struct be_tx_obj *tx_obj = &adapter->tx_obj;
445 struct be_queue_info *txq = &tx_obj->q;
446 u32 wrb_cnt = 0, copied = 0;
447 u32 start = txq->head;
448 bool dummy_wrb, stopped = false;
449
450 wrb_cnt = wrb_cnt_for_skb(skb, &dummy_wrb);
451
452 copied = make_tx_wrbs(adapter, skb, wrb_cnt, dummy_wrb);
453
454 /* record the sent skb in the sent_skb table */
455 BUG_ON(tx_obj->sent_skb_list[start]);
456 tx_obj->sent_skb_list[start] = skb;
457
458 /* Ensure that txq has space for the next skb; Else stop the queue
459 * *BEFORE* ringing the tx doorbell, so that we serialze the
460 * tx compls of the current transmit which'll wake up the queue
461 */
462 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >= txq->len) {
463 netif_stop_queue(netdev);
464 stopped = true;
465 }
466
467 be_txq_notify(&adapter->ctrl, txq->id, wrb_cnt);
468
469 netdev->trans_start = jiffies;
470
471 be_tx_stats_update(adapter, wrb_cnt, copied, stopped);
472 return NETDEV_TX_OK;
473}
474
475static int be_change_mtu(struct net_device *netdev, int new_mtu)
476{
477 struct be_adapter *adapter = netdev_priv(netdev);
478 if (new_mtu < BE_MIN_MTU ||
479 new_mtu > BE_MAX_JUMBO_FRAME_SIZE) {
480 dev_info(&adapter->pdev->dev,
481 "MTU must be between %d and %d bytes\n",
482 BE_MIN_MTU, BE_MAX_JUMBO_FRAME_SIZE);
483 return -EINVAL;
484 }
485 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
486 netdev->mtu, new_mtu);
487 netdev->mtu = new_mtu;
488 return 0;
489}
490
491/*
492 * if there are BE_NUM_VLANS_SUPPORTED or lesser number of VLANS configured,
493 * program them in BE. If more than BE_NUM_VLANS_SUPPORTED are configured,
494 * set the BE in promiscuous VLAN mode.
495 */
496static void be_vids_config(struct net_device *netdev)
497{
498 struct be_adapter *adapter = netdev_priv(netdev);
499 u16 vtag[BE_NUM_VLANS_SUPPORTED];
500 u16 ntags = 0, i;
501
502 if (adapter->num_vlans <= BE_NUM_VLANS_SUPPORTED) {
503 /* Construct VLAN Table to give to HW */
504 for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
505 if (adapter->vlan_tag[i]) {
506 vtag[ntags] = cpu_to_le16(i);
507 ntags++;
508 }
509 }
510 be_cmd_vlan_config(&adapter->ctrl, adapter->if_handle,
511 vtag, ntags, 1, 0);
512 } else {
513 be_cmd_vlan_config(&adapter->ctrl, adapter->if_handle,
514 NULL, 0, 1, 1);
515 }
516}
517
518static void be_vlan_register(struct net_device *netdev, struct vlan_group *grp)
519{
520 struct be_adapter *adapter = netdev_priv(netdev);
521 struct be_eq_obj *rx_eq = &adapter->rx_eq;
522 struct be_eq_obj *tx_eq = &adapter->tx_eq;
523 struct be_ctrl_info *ctrl = &adapter->ctrl;
524
525 be_eq_notify(ctrl, rx_eq->q.id, false, false, 0);
526 be_eq_notify(ctrl, tx_eq->q.id, false, false, 0);
527 adapter->vlan_grp = grp;
528 be_eq_notify(ctrl, rx_eq->q.id, true, false, 0);
529 be_eq_notify(ctrl, tx_eq->q.id, true, false, 0);
530}
531
532static void be_vlan_add_vid(struct net_device *netdev, u16 vid)
533{
534 struct be_adapter *adapter = netdev_priv(netdev);
535
536 adapter->num_vlans++;
537 adapter->vlan_tag[vid] = 1;
538
539 be_vids_config(netdev);
540}
541
542static void be_vlan_rem_vid(struct net_device *netdev, u16 vid)
543{
544 struct be_adapter *adapter = netdev_priv(netdev);
545
546 adapter->num_vlans--;
547 adapter->vlan_tag[vid] = 0;
548
549 vlan_group_set_device(adapter->vlan_grp, vid, NULL);
550 be_vids_config(netdev);
551}
552
553static void be_set_multicast_filter(struct net_device *netdev)
554{
555 struct be_adapter *adapter = netdev_priv(netdev);
556 struct dev_mc_list *mc_ptr;
557 u8 mac_addr[32][ETH_ALEN];
558 int i = 0;
559
560 if (netdev->flags & IFF_ALLMULTI) {
561 /* set BE in Multicast promiscuous */
562 be_cmd_mcast_mac_set(&adapter->ctrl,
563 adapter->if_handle, NULL, 0, true);
564 return;
565 }
566
567 for (mc_ptr = netdev->mc_list; mc_ptr; mc_ptr = mc_ptr->next) {
568 memcpy(&mac_addr[i][0], mc_ptr->dmi_addr, ETH_ALEN);
569 if (++i >= 32) {
570 be_cmd_mcast_mac_set(&adapter->ctrl,
571 adapter->if_handle, &mac_addr[0][0], i, false);
572 i = 0;
573 }
574
575 }
576
577 if (i) {
578 /* reset the promiscuous mode also. */
579 be_cmd_mcast_mac_set(&adapter->ctrl,
580 adapter->if_handle, &mac_addr[0][0], i, false);
581 }
582}
583
584static void be_set_multicast_list(struct net_device *netdev)
585{
586 struct be_adapter *adapter = netdev_priv(netdev);
587
588 if (netdev->flags & IFF_PROMISC) {
589 be_cmd_promiscuous_config(&adapter->ctrl, adapter->port_num, 1);
590 } else {
591 be_cmd_promiscuous_config(&adapter->ctrl, adapter->port_num, 0);
592 be_set_multicast_filter(netdev);
593 }
594}
595
596static void be_rx_rate_update(struct be_adapter *adapter, u32 pktsize,
597 u16 numfrags)
598{
599 struct be_drvr_stats *stats = &adapter->stats.drvr_stats;
600 u32 rate;
601
602 stats->be_rx_compl++;
603 stats->be_rx_frags += numfrags;
604 stats->be_rx_bytes += pktsize;
605
606 /* Update the rate once in two seconds */
607 if ((jiffies - stats->be_rx_jiffies) < 2 * HZ)
608 return;
609
610 rate = (stats->be_rx_bytes - stats->be_rx_bytes_prev) /
611 ((u32) (jiffies - stats->be_rx_jiffies) / HZ);
612 rate = (rate / 1000000); /* MB/Sec */
613 stats->be_rx_rate = (rate * 8); /* Mega Bits/Sec */
614 stats->be_rx_jiffies = jiffies;
615 stats->be_rx_bytes_prev = stats->be_rx_bytes;
616}
617
618static struct be_rx_page_info *
619get_rx_page_info(struct be_adapter *adapter, u16 frag_idx)
620{
621 struct be_rx_page_info *rx_page_info;
622 struct be_queue_info *rxq = &adapter->rx_obj.q;
623
624 rx_page_info = &adapter->rx_obj.page_info_tbl[frag_idx];
625 BUG_ON(!rx_page_info->page);
626
627 if (rx_page_info->last_page_user)
628 pci_unmap_page(adapter->pdev, pci_unmap_addr(rx_page_info, bus),
629 adapter->big_page_size, PCI_DMA_FROMDEVICE);
630
631 atomic_dec(&rxq->used);
632 return rx_page_info;
633}
634
635/* Throwaway the data in the Rx completion */
636static void be_rx_compl_discard(struct be_adapter *adapter,
637 struct be_eth_rx_compl *rxcp)
638{
639 struct be_queue_info *rxq = &adapter->rx_obj.q;
640 struct be_rx_page_info *page_info;
641 u16 rxq_idx, i, num_rcvd;
642
643 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
644 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
645
646 for (i = 0; i < num_rcvd; i++) {
647 page_info = get_rx_page_info(adapter, rxq_idx);
648 put_page(page_info->page);
649 memset(page_info, 0, sizeof(*page_info));
650 index_inc(&rxq_idx, rxq->len);
651 }
652}
653
654/*
655 * skb_fill_rx_data forms a complete skb for an ether frame
656 * indicated by rxcp.
657 */
658static void skb_fill_rx_data(struct be_adapter *adapter,
659 struct sk_buff *skb, struct be_eth_rx_compl *rxcp)
660{
661 struct be_queue_info *rxq = &adapter->rx_obj.q;
662 struct be_rx_page_info *page_info;
663 u16 rxq_idx, i, num_rcvd;
664 u32 pktsize, hdr_len, curr_frag_len;
665 u8 *start;
666
667 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
668 pktsize = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
669 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
670
671 page_info = get_rx_page_info(adapter, rxq_idx);
672
673 start = page_address(page_info->page) + page_info->page_offset;
674 prefetch(start);
675
676 /* Copy data in the first descriptor of this completion */
677 curr_frag_len = min(pktsize, rx_frag_size);
678
679 /* Copy the header portion into skb_data */
680 hdr_len = min((u32)BE_HDR_LEN, curr_frag_len);
681 memcpy(skb->data, start, hdr_len);
682 skb->len = curr_frag_len;
683 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
684 /* Complete packet has now been moved to data */
685 put_page(page_info->page);
686 skb->data_len = 0;
687 skb->tail += curr_frag_len;
688 } else {
689 skb_shinfo(skb)->nr_frags = 1;
690 skb_shinfo(skb)->frags[0].page = page_info->page;
691 skb_shinfo(skb)->frags[0].page_offset =
692 page_info->page_offset + hdr_len;
693 skb_shinfo(skb)->frags[0].size = curr_frag_len - hdr_len;
694 skb->data_len = curr_frag_len - hdr_len;
695 skb->tail += hdr_len;
696 }
697 memset(page_info, 0, sizeof(*page_info));
698
699 if (pktsize <= rx_frag_size) {
700 BUG_ON(num_rcvd != 1);
701 return;
702 }
703
704 /* More frags present for this completion */
705 pktsize -= curr_frag_len; /* account for above copied frag */
706 for (i = 1; i < num_rcvd; i++) {
707 index_inc(&rxq_idx, rxq->len);
708 page_info = get_rx_page_info(adapter, rxq_idx);
709
710 curr_frag_len = min(pktsize, rx_frag_size);
711
712 skb_shinfo(skb)->frags[i].page = page_info->page;
713 skb_shinfo(skb)->frags[i].page_offset = page_info->page_offset;
714 skb_shinfo(skb)->frags[i].size = curr_frag_len;
715 skb->len += curr_frag_len;
716 skb->data_len += curr_frag_len;
717 skb_shinfo(skb)->nr_frags++;
718 pktsize -= curr_frag_len;
719
720 memset(page_info, 0, sizeof(*page_info));
721 }
722
723 be_rx_rate_update(adapter, pktsize, num_rcvd);
724 return;
725}
726
727/* Process the RX completion indicated by rxcp when LRO is disabled */
728static void be_rx_compl_process(struct be_adapter *adapter,
729 struct be_eth_rx_compl *rxcp)
730{
731 struct sk_buff *skb;
732 u32 vtp, vid;
733 int l4_cksm;
734
735 l4_cksm = AMAP_GET_BITS(struct amap_eth_rx_compl, l4_cksm, rxcp);
736 vtp = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
737
738 skb = netdev_alloc_skb(adapter->netdev, BE_HDR_LEN + NET_IP_ALIGN);
739 if (!skb) {
740 if (net_ratelimit())
741 dev_warn(&adapter->pdev->dev, "skb alloc failed\n");
742 be_rx_compl_discard(adapter, rxcp);
743 return;
744 }
745
746 skb_reserve(skb, NET_IP_ALIGN);
747
748 skb_fill_rx_data(adapter, skb, rxcp);
749
750 if (l4_cksm && adapter->rx_csum)
751 skb->ip_summed = CHECKSUM_UNNECESSARY;
752 else
753 skb->ip_summed = CHECKSUM_NONE;
754
755 skb->truesize = skb->len + sizeof(struct sk_buff);
756 skb->protocol = eth_type_trans(skb, adapter->netdev);
757 skb->dev = adapter->netdev;
758
759 if (vtp) {
760 if (!adapter->vlan_grp || adapter->num_vlans == 0) {
761 kfree_skb(skb);
762 return;
763 }
764 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
765 vid = be16_to_cpu(vid);
766 vlan_hwaccel_receive_skb(skb, adapter->vlan_grp, vid);
767 } else {
768 netif_receive_skb(skb);
769 }
770
771 adapter->netdev->last_rx = jiffies;
772
773 return;
774}
775
776/* Process the RX completion indicated by rxcp when LRO is enabled */
777static void be_rx_compl_process_lro(struct be_adapter *adapter,
778 struct be_eth_rx_compl *rxcp)
779{
780 struct be_rx_page_info *page_info;
781 struct skb_frag_struct rx_frags[BE_MAX_FRAGS_PER_FRAME];
782 struct be_queue_info *rxq = &adapter->rx_obj.q;
783 u32 num_rcvd, pkt_size, remaining, vlanf, curr_frag_len;
784 u16 i, rxq_idx = 0, vid;
785
786 num_rcvd = AMAP_GET_BITS(struct amap_eth_rx_compl, numfrags, rxcp);
787 pkt_size = AMAP_GET_BITS(struct amap_eth_rx_compl, pktsize, rxcp);
788 vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl, vtp, rxcp);
789 rxq_idx = AMAP_GET_BITS(struct amap_eth_rx_compl, fragndx, rxcp);
790
791 remaining = pkt_size;
792 for (i = 0; i < num_rcvd; i++) {
793 page_info = get_rx_page_info(adapter, rxq_idx);
794
795 curr_frag_len = min(remaining, rx_frag_size);
796
797 rx_frags[i].page = page_info->page;
798 rx_frags[i].page_offset = page_info->page_offset;
799 rx_frags[i].size = curr_frag_len;
800 remaining -= curr_frag_len;
801
802 index_inc(&rxq_idx, rxq->len);
803
804 memset(page_info, 0, sizeof(*page_info));
805 }
806
807 if (likely(!vlanf)) {
808 lro_receive_frags(&adapter->rx_obj.lro_mgr, rx_frags, pkt_size,
809 pkt_size, NULL, 0);
810 } else {
811 vid = AMAP_GET_BITS(struct amap_eth_rx_compl, vlan_tag, rxcp);
812 vid = be16_to_cpu(vid);
813
814 if (!adapter->vlan_grp || adapter->num_vlans == 0)
815 return;
816
817 lro_vlan_hwaccel_receive_frags(&adapter->rx_obj.lro_mgr,
818 rx_frags, pkt_size, pkt_size, adapter->vlan_grp,
819 vid, NULL, 0);
820 }
821
822 be_rx_rate_update(adapter, pkt_size, num_rcvd);
823 return;
824}
825
826static struct be_eth_rx_compl *be_rx_compl_get(struct be_adapter *adapter)
827{
828 struct be_eth_rx_compl *rxcp = queue_tail_node(&adapter->rx_obj.cq);
829
830 if (rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] == 0)
831 return NULL;
832
833 be_dws_le_to_cpu(rxcp, sizeof(*rxcp));
834
835 rxcp->dw[offsetof(struct amap_eth_rx_compl, valid) / 32] = 0;
836
837 queue_tail_inc(&adapter->rx_obj.cq);
838 return rxcp;
839}
840
841static inline struct page *be_alloc_pages(u32 size)
842{
843 gfp_t alloc_flags = GFP_ATOMIC;
844 u32 order = get_order(size);
845 if (order > 0)
846 alloc_flags |= __GFP_COMP;
847 return alloc_pages(alloc_flags, order);
848}
849
850/*
851 * Allocate a page, split it to fragments of size rx_frag_size and post as
852 * receive buffers to BE
853 */
854static void be_post_rx_frags(struct be_adapter *adapter)
855{
856 struct be_rx_page_info *page_info_tbl = adapter->rx_obj.page_info_tbl;
857 struct be_rx_page_info *page_info = NULL;
858 struct be_queue_info *rxq = &adapter->rx_obj.q;
859 struct page *pagep = NULL;
860 struct be_eth_rx_d *rxd;
861 u64 page_dmaaddr = 0, frag_dmaaddr;
862 u32 posted, page_offset = 0;
863
864
865 page_info = &page_info_tbl[rxq->head];
866 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
867 if (!pagep) {
868 pagep = be_alloc_pages(adapter->big_page_size);
869 if (unlikely(!pagep)) {
870 drvr_stats(adapter)->be_ethrx_post_fail++;
871 break;
872 }
873 page_dmaaddr = pci_map_page(adapter->pdev, pagep, 0,
874 adapter->big_page_size,
875 PCI_DMA_FROMDEVICE);
876 page_info->page_offset = 0;
877 } else {
878 get_page(pagep);
879 page_info->page_offset = page_offset + rx_frag_size;
880 }
881 page_offset = page_info->page_offset;
882 page_info->page = pagep;
883 pci_unmap_addr_set(page_info, bus, page_dmaaddr);
884 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
885
886 rxd = queue_head_node(rxq);
887 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
888 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
889 queue_head_inc(rxq);
890
891 /* Any space left in the current big page for another frag? */
892 if ((page_offset + rx_frag_size + rx_frag_size) >
893 adapter->big_page_size) {
894 pagep = NULL;
895 page_info->last_page_user = true;
896 }
897 page_info = &page_info_tbl[rxq->head];
898 }
899 if (pagep)
900 page_info->last_page_user = true;
901
902 if (posted) {
903 be_rxq_notify(&adapter->ctrl, rxq->id, posted);
904 atomic_add(posted, &rxq->used);
905 }
906
907 return;
908}
909
910static struct be_eth_tx_compl *
911be_tx_compl_get(struct be_adapter *adapter)
912{
913 struct be_queue_info *tx_cq = &adapter->tx_obj.cq;
914 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
915
916 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
917 return NULL;
918
919 be_dws_le_to_cpu(txcp, sizeof(*txcp));
920
921 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
922
923 queue_tail_inc(tx_cq);
924 return txcp;
925}
926
927static void be_tx_compl_process(struct be_adapter *adapter, u16 last_index)
928{
929 struct be_queue_info *txq = &adapter->tx_obj.q;
930 struct be_eth_wrb *wrb;
931 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
932 struct sk_buff *sent_skb;
933 u64 busaddr;
934 u16 cur_index, num_wrbs = 0;
935
936 cur_index = txq->tail;
937 sent_skb = sent_skbs[cur_index];
938 BUG_ON(!sent_skb);
939 sent_skbs[cur_index] = NULL;
940
941 do {
942 cur_index = txq->tail;
943 wrb = queue_tail_node(txq);
944 be_dws_le_to_cpu(wrb, sizeof(*wrb));
945 busaddr = ((u64)wrb->frag_pa_hi << 32) | (u64)wrb->frag_pa_lo;
946 if (busaddr != 0) {
947 pci_unmap_single(adapter->pdev, busaddr,
948 wrb->frag_len, PCI_DMA_TODEVICE);
949 }
950 num_wrbs++;
951 queue_tail_inc(txq);
952 } while (cur_index != last_index);
953
954 atomic_sub(num_wrbs, &txq->used);
955
956 kfree_skb(sent_skb);
957}
958
959static void be_rx_q_clean(struct be_adapter *adapter)
960{
961 struct be_rx_page_info *page_info;
962 struct be_queue_info *rxq = &adapter->rx_obj.q;
963 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
964 struct be_eth_rx_compl *rxcp;
965 u16 tail;
966
967 /* First cleanup pending rx completions */
968 while ((rxcp = be_rx_compl_get(adapter)) != NULL) {
969 be_rx_compl_discard(adapter, rxcp);
970 be_cq_notify(&adapter->ctrl, rx_cq->id, true, 1);
971 }
972
973 /* Then free posted rx buffer that were not used */
974 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
975 for (; tail != rxq->head; index_inc(&tail, rxq->len)) {
976 page_info = get_rx_page_info(adapter, tail);
977 put_page(page_info->page);
978 memset(page_info, 0, sizeof(*page_info));
979 }
980 BUG_ON(atomic_read(&rxq->used));
981}
982
983static void be_tx_q_clean(struct be_adapter *adapter)
984{
985 struct sk_buff **sent_skbs = adapter->tx_obj.sent_skb_list;
986 struct sk_buff *sent_skb;
987 struct be_queue_info *txq = &adapter->tx_obj.q;
988 u16 last_index;
989 bool dummy_wrb;
990
991 while (atomic_read(&txq->used)) {
992 sent_skb = sent_skbs[txq->tail];
993 last_index = txq->tail;
994 index_adv(&last_index,
995 wrb_cnt_for_skb(sent_skb, &dummy_wrb) - 1, txq->len);
996 be_tx_compl_process(adapter, last_index);
997 }
998}
999
1000static void be_tx_queues_destroy(struct be_adapter *adapter)
1001{
1002 struct be_queue_info *q;
1003
1004 q = &adapter->tx_obj.q;
1005 if (q->created)
1006 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_TXQ);
1007 be_queue_free(adapter, q);
1008
1009 q = &adapter->tx_obj.cq;
1010 if (q->created)
1011 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_CQ);
1012 be_queue_free(adapter, q);
1013
1014 /* No more tx completions can be rcvd now; clean up if there are
1015 * any pending completions or pending tx requests */
1016 be_tx_q_clean(adapter);
1017
1018 q = &adapter->tx_eq.q;
1019 if (q->created)
1020 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_EQ);
1021 be_queue_free(adapter, q);
1022}
1023
1024static int be_tx_queues_create(struct be_adapter *adapter)
1025{
1026 struct be_queue_info *eq, *q, *cq;
1027
1028 adapter->tx_eq.max_eqd = 0;
1029 adapter->tx_eq.min_eqd = 0;
1030 adapter->tx_eq.cur_eqd = 96;
1031 adapter->tx_eq.enable_aic = false;
1032 /* Alloc Tx Event queue */
1033 eq = &adapter->tx_eq.q;
1034 if (be_queue_alloc(adapter, eq, EVNT_Q_LEN, sizeof(struct be_eq_entry)))
1035 return -1;
1036
1037 /* Ask BE to create Tx Event queue */
1038 if (be_cmd_eq_create(&adapter->ctrl, eq, adapter->tx_eq.cur_eqd))
1039 goto tx_eq_free;
1040 /* Alloc TX eth compl queue */
1041 cq = &adapter->tx_obj.cq;
1042 if (be_queue_alloc(adapter, cq, TX_CQ_LEN,
1043 sizeof(struct be_eth_tx_compl)))
1044 goto tx_eq_destroy;
1045
1046 /* Ask BE to create Tx eth compl queue */
1047 if (be_cmd_cq_create(&adapter->ctrl, cq, eq, false, false, 3))
1048 goto tx_cq_free;
1049
1050 /* Alloc TX eth queue */
1051 q = &adapter->tx_obj.q;
1052 if (be_queue_alloc(adapter, q, TX_Q_LEN, sizeof(struct be_eth_wrb)))
1053 goto tx_cq_destroy;
1054
1055 /* Ask BE to create Tx eth queue */
1056 if (be_cmd_txq_create(&adapter->ctrl, q, cq))
1057 goto tx_q_free;
1058 return 0;
1059
1060tx_q_free:
1061 be_queue_free(adapter, q);
1062tx_cq_destroy:
1063 be_cmd_q_destroy(&adapter->ctrl, cq, QTYPE_CQ);
1064tx_cq_free:
1065 be_queue_free(adapter, cq);
1066tx_eq_destroy:
1067 be_cmd_q_destroy(&adapter->ctrl, eq, QTYPE_EQ);
1068tx_eq_free:
1069 be_queue_free(adapter, eq);
1070 return -1;
1071}
1072
1073static void be_rx_queues_destroy(struct be_adapter *adapter)
1074{
1075 struct be_queue_info *q;
1076
1077 q = &adapter->rx_obj.q;
1078 if (q->created) {
1079 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_RXQ);
1080 be_rx_q_clean(adapter);
1081 }
1082 be_queue_free(adapter, q);
1083
1084 q = &adapter->rx_obj.cq;
1085 if (q->created)
1086 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_CQ);
1087 be_queue_free(adapter, q);
1088
1089 q = &adapter->rx_eq.q;
1090 if (q->created)
1091 be_cmd_q_destroy(&adapter->ctrl, q, QTYPE_EQ);
1092 be_queue_free(adapter, q);
1093}
1094
1095static int be_rx_queues_create(struct be_adapter *adapter)
1096{
1097 struct be_queue_info *eq, *q, *cq;
1098 int rc;
1099
1100 adapter->max_rx_coal = BE_MAX_FRAGS_PER_FRAME;
1101 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
1102 adapter->rx_eq.max_eqd = BE_MAX_EQD;
1103 adapter->rx_eq.min_eqd = 0;
1104 adapter->rx_eq.cur_eqd = 0;
1105 adapter->rx_eq.enable_aic = true;
1106
1107 /* Alloc Rx Event queue */
1108 eq = &adapter->rx_eq.q;
1109 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1110 sizeof(struct be_eq_entry));
1111 if (rc)
1112 return rc;
1113
1114 /* Ask BE to create Rx Event queue */
1115 rc = be_cmd_eq_create(&adapter->ctrl, eq, adapter->rx_eq.cur_eqd);
1116 if (rc)
1117 goto rx_eq_free;
1118
1119 /* Alloc RX eth compl queue */
1120 cq = &adapter->rx_obj.cq;
1121 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
1122 sizeof(struct be_eth_rx_compl));
1123 if (rc)
1124 goto rx_eq_destroy;
1125
1126 /* Ask BE to create Rx eth compl queue */
1127 rc = be_cmd_cq_create(&adapter->ctrl, cq, eq, false, false, 3);
1128 if (rc)
1129 goto rx_cq_free;
1130
1131 /* Alloc RX eth queue */
1132 q = &adapter->rx_obj.q;
1133 rc = be_queue_alloc(adapter, q, RX_Q_LEN, sizeof(struct be_eth_rx_d));
1134 if (rc)
1135 goto rx_cq_destroy;
1136
1137 /* Ask BE to create Rx eth queue */
1138 rc = be_cmd_rxq_create(&adapter->ctrl, q, cq->id, rx_frag_size,
1139 BE_MAX_JUMBO_FRAME_SIZE, adapter->if_handle, false);
1140 if (rc)
1141 goto rx_q_free;
1142
1143 return 0;
1144rx_q_free:
1145 be_queue_free(adapter, q);
1146rx_cq_destroy:
1147 be_cmd_q_destroy(&adapter->ctrl, cq, QTYPE_CQ);
1148rx_cq_free:
1149 be_queue_free(adapter, cq);
1150rx_eq_destroy:
1151 be_cmd_q_destroy(&adapter->ctrl, eq, QTYPE_EQ);
1152rx_eq_free:
1153 be_queue_free(adapter, eq);
1154 return rc;
1155}
1156static bool event_get(struct be_eq_obj *eq_obj, u16 *rid)
1157{
1158 struct be_eq_entry *entry = queue_tail_node(&eq_obj->q);
1159 u32 evt = entry->evt;
1160
1161 if (!evt)
1162 return false;
1163
1164 evt = le32_to_cpu(evt);
1165 *rid = (evt >> EQ_ENTRY_RES_ID_SHIFT) & EQ_ENTRY_RES_ID_MASK;
1166 entry->evt = 0;
1167 queue_tail_inc(&eq_obj->q);
1168 return true;
1169}
1170
1171static int event_handle(struct be_ctrl_info *ctrl,
1172 struct be_eq_obj *eq_obj)
1173{
1174 u16 rid = 0, num = 0;
1175
1176 while (event_get(eq_obj, &rid))
1177 num++;
1178
1179 /* We can see an interrupt and no event */
1180 be_eq_notify(ctrl, eq_obj->q.id, true, true, num);
1181 if (num)
1182 napi_schedule(&eq_obj->napi);
1183
1184 return num;
1185}
1186
1187static irqreturn_t be_intx(int irq, void *dev)
1188{
1189 struct be_adapter *adapter = dev;
1190 struct be_ctrl_info *ctrl = &adapter->ctrl;
1191 int rx, tx;
1192
1193 tx = event_handle(ctrl, &adapter->tx_eq);
1194 rx = event_handle(ctrl, &adapter->rx_eq);
1195
1196 if (rx || tx)
1197 return IRQ_HANDLED;
1198 else
1199 return IRQ_NONE;
1200}
1201
1202static irqreturn_t be_msix_rx(int irq, void *dev)
1203{
1204 struct be_adapter *adapter = dev;
1205
1206 event_handle(&adapter->ctrl, &adapter->rx_eq);
1207
1208 return IRQ_HANDLED;
1209}
1210
1211static irqreturn_t be_msix_tx(int irq, void *dev)
1212{
1213 struct be_adapter *adapter = dev;
1214
1215 event_handle(&adapter->ctrl, &adapter->tx_eq);
1216
1217 return IRQ_HANDLED;
1218}
1219
1220static inline bool do_lro(struct be_adapter *adapter,
1221 struct be_eth_rx_compl *rxcp)
1222{
1223 int err = AMAP_GET_BITS(struct amap_eth_rx_compl, err, rxcp);
1224 int tcp_frame = AMAP_GET_BITS(struct amap_eth_rx_compl, tcpf, rxcp);
1225
1226 if (err)
1227 drvr_stats(adapter)->be_rxcp_err++;
1228
1229 return (!tcp_frame || err || (adapter->max_rx_coal <= 1)) ?
1230 false : true;
1231}
1232
1233int be_poll_rx(struct napi_struct *napi, int budget)
1234{
1235 struct be_eq_obj *rx_eq = container_of(napi, struct be_eq_obj, napi);
1236 struct be_adapter *adapter =
1237 container_of(rx_eq, struct be_adapter, rx_eq);
1238 struct be_queue_info *rx_cq = &adapter->rx_obj.cq;
1239 struct be_eth_rx_compl *rxcp;
1240 u32 work_done;
1241
1242 for (work_done = 0; work_done < budget; work_done++) {
1243 rxcp = be_rx_compl_get(adapter);
1244 if (!rxcp)
1245 break;
1246
1247 if (do_lro(adapter, rxcp))
1248 be_rx_compl_process_lro(adapter, rxcp);
1249 else
1250 be_rx_compl_process(adapter, rxcp);
1251 }
1252
1253 lro_flush_all(&adapter->rx_obj.lro_mgr);
1254
1255 /* Refill the queue */
1256 if (atomic_read(&adapter->rx_obj.q.used) < RX_FRAGS_REFILL_WM)
1257 be_post_rx_frags(adapter);
1258
1259 /* All consumed */
1260 if (work_done < budget) {
1261 napi_complete(napi);
1262 be_cq_notify(&adapter->ctrl, rx_cq->id, true, work_done);
1263 } else {
1264 /* More to be consumed; continue with interrupts disabled */
1265 be_cq_notify(&adapter->ctrl, rx_cq->id, false, work_done);
1266 }
1267 return work_done;
1268}
1269
1270/* For TX we don't honour budget; consume everything */
1271int be_poll_tx(struct napi_struct *napi, int budget)
1272{
1273 struct be_eq_obj *tx_eq = container_of(napi, struct be_eq_obj, napi);
1274 struct be_adapter *adapter =
1275 container_of(tx_eq, struct be_adapter, tx_eq);
1276 struct be_tx_obj *tx_obj = &adapter->tx_obj;
1277 struct be_queue_info *tx_cq = &tx_obj->cq;
1278 struct be_queue_info *txq = &tx_obj->q;
1279 struct be_eth_tx_compl *txcp;
1280 u32 num_cmpl = 0;
1281 u16 end_idx;
1282
1283 while ((txcp = be_tx_compl_get(adapter))) {
1284 end_idx = AMAP_GET_BITS(struct amap_eth_tx_compl,
1285 wrb_index, txcp);
1286 be_tx_compl_process(adapter, end_idx);
1287 num_cmpl++;
1288 }
1289
1290 /* As Tx wrbs have been freed up, wake up netdev queue if
1291 * it was stopped due to lack of tx wrbs.
1292 */
1293 if (netif_queue_stopped(adapter->netdev) &&
1294 atomic_read(&txq->used) < txq->len / 2) {
1295 netif_wake_queue(adapter->netdev);
1296 }
1297
1298 napi_complete(napi);
1299
1300 be_cq_notify(&adapter->ctrl, tx_cq->id, true, num_cmpl);
1301
1302 drvr_stats(adapter)->be_tx_events++;
1303 drvr_stats(adapter)->be_tx_compl += num_cmpl;
1304
1305 return 1;
1306}
1307
1308static void be_msix_enable(struct be_adapter *adapter)
1309{
1310 int i, status;
1311
1312 for (i = 0; i < BE_NUM_MSIX_VECTORS; i++)
1313 adapter->msix_entries[i].entry = i;
1314
1315 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
1316 BE_NUM_MSIX_VECTORS);
1317 if (status == 0)
1318 adapter->msix_enabled = true;
1319 return;
1320}
1321
1322static inline int be_msix_vec_get(struct be_adapter *adapter, u32 eq_id)
1323{
1324 return adapter->msix_entries[eq_id -
1325 8 * adapter->ctrl.pci_func].vector;
1326}
1327
1328static int be_msix_register(struct be_adapter *adapter)
1329{
1330 struct net_device *netdev = adapter->netdev;
1331 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1332 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1333 int status, vec;
1334
1335 sprintf(tx_eq->desc, "%s-tx", netdev->name);
1336 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1337 status = request_irq(vec, be_msix_tx, 0, tx_eq->desc, adapter);
1338 if (status)
1339 goto err;
1340
1341 sprintf(rx_eq->desc, "%s-rx", netdev->name);
1342 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1343 status = request_irq(vec, be_msix_rx, 0, rx_eq->desc, adapter);
1344 if (status) { /* Free TX IRQ */
1345 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1346 free_irq(vec, adapter);
1347 goto err;
1348 }
1349 return 0;
1350err:
1351 dev_warn(&adapter->pdev->dev,
1352 "MSIX Request IRQ failed - err %d\n", status);
1353 pci_disable_msix(adapter->pdev);
1354 adapter->msix_enabled = false;
1355 return status;
1356}
1357
1358static int be_irq_register(struct be_adapter *adapter)
1359{
1360 struct net_device *netdev = adapter->netdev;
1361 int status;
1362
1363 if (adapter->msix_enabled) {
1364 status = be_msix_register(adapter);
1365 if (status == 0)
1366 goto done;
1367 }
1368
1369 /* INTx */
1370 netdev->irq = adapter->pdev->irq;
1371 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
1372 adapter);
1373 if (status) {
1374 dev_err(&adapter->pdev->dev,
1375 "INTx request IRQ failed - err %d\n", status);
1376 return status;
1377 }
1378done:
1379 adapter->isr_registered = true;
1380 return 0;
1381}
1382
1383static void be_irq_unregister(struct be_adapter *adapter)
1384{
1385 struct net_device *netdev = adapter->netdev;
1386 int vec;
1387
1388 if (!adapter->isr_registered)
1389 return;
1390
1391 /* INTx */
1392 if (!adapter->msix_enabled) {
1393 free_irq(netdev->irq, adapter);
1394 goto done;
1395 }
1396
1397 /* MSIx */
1398 vec = be_msix_vec_get(adapter, adapter->tx_eq.q.id);
1399 free_irq(vec, adapter);
1400 vec = be_msix_vec_get(adapter, adapter->rx_eq.q.id);
1401 free_irq(vec, adapter);
1402done:
1403 adapter->isr_registered = false;
1404 return;
1405}
1406
1407static int be_open(struct net_device *netdev)
1408{
1409 struct be_adapter *adapter = netdev_priv(netdev);
1410 struct be_ctrl_info *ctrl = &adapter->ctrl;
1411 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1412 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1413 u32 if_flags;
1414 int status;
1415
1416 if_flags = BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_PROMISCUOUS |
1417 BE_IF_FLAGS_MCAST_PROMISCUOUS | BE_IF_FLAGS_UNTAGGED |
1418 BE_IF_FLAGS_PASS_L3L4_ERRORS;
1419 status = be_cmd_if_create(ctrl, if_flags, netdev->dev_addr,
1420 false/* pmac_invalid */, &adapter->if_handle,
1421 &adapter->pmac_id);
1422 if (status != 0)
1423 goto do_none;
1424
1425 status = be_cmd_set_flow_control(ctrl, true, true);
1426 if (status != 0)
1427 goto if_destroy;
1428
1429 status = be_tx_queues_create(adapter);
1430 if (status != 0)
1431 goto if_destroy;
1432
1433 status = be_rx_queues_create(adapter);
1434 if (status != 0)
1435 goto tx_qs_destroy;
1436
1437 /* First time posting */
1438 be_post_rx_frags(adapter);
1439
1440 napi_enable(&rx_eq->napi);
1441 napi_enable(&tx_eq->napi);
1442
1443 be_irq_register(adapter);
1444
1445 be_intr_set(ctrl, true);
1446
1447 /* The evt queues are created in the unarmed state; arm them */
1448 be_eq_notify(ctrl, rx_eq->q.id, true, false, 0);
1449 be_eq_notify(ctrl, tx_eq->q.id, true, false, 0);
1450
1451 /* The compl queues are created in the unarmed state; arm them */
1452 be_cq_notify(ctrl, adapter->rx_obj.cq.id, true, 0);
1453 be_cq_notify(ctrl, adapter->tx_obj.cq.id, true, 0);
1454
1455 be_link_status_update(adapter);
1456
1457 schedule_delayed_work(&adapter->work, msecs_to_jiffies(100));
1458 return 0;
1459
1460tx_qs_destroy:
1461 be_tx_queues_destroy(adapter);
1462if_destroy:
1463 be_cmd_if_destroy(ctrl, adapter->if_handle);
1464do_none:
1465 return status;
1466}
1467
1468static int be_close(struct net_device *netdev)
1469{
1470 struct be_adapter *adapter = netdev_priv(netdev);
1471 struct be_ctrl_info *ctrl = &adapter->ctrl;
1472 struct be_eq_obj *rx_eq = &adapter->rx_eq;
1473 struct be_eq_obj *tx_eq = &adapter->tx_eq;
1474 int vec;
1475
1476 cancel_delayed_work(&adapter->work);
1477
1478 netif_stop_queue(netdev);
1479 netif_carrier_off(netdev);
1480 adapter->link.speed = PHY_LINK_SPEED_ZERO;
1481
1482 be_intr_set(ctrl, false);
1483
1484 if (adapter->msix_enabled) {
1485 vec = be_msix_vec_get(adapter, tx_eq->q.id);
1486 synchronize_irq(vec);
1487 vec = be_msix_vec_get(adapter, rx_eq->q.id);
1488 synchronize_irq(vec);
1489 } else {
1490 synchronize_irq(netdev->irq);
1491 }
1492 be_irq_unregister(adapter);
1493
1494 napi_disable(&rx_eq->napi);
1495 napi_disable(&tx_eq->napi);
1496
1497 be_rx_queues_destroy(adapter);
1498 be_tx_queues_destroy(adapter);
1499
1500 be_cmd_if_destroy(ctrl, adapter->if_handle);
1501 return 0;
1502}
1503
1504static int be_get_frag_header(struct skb_frag_struct *frag, void **mac_hdr,
1505 void **ip_hdr, void **tcpudp_hdr,
1506 u64 *hdr_flags, void *priv)
1507{
1508 struct ethhdr *eh;
1509 struct vlan_ethhdr *veh;
1510 struct iphdr *iph;
1511 u8 *va = page_address(frag->page) + frag->page_offset;
1512 unsigned long ll_hlen;
1513
1514 prefetch(va);
1515 eh = (struct ethhdr *)va;
1516 *mac_hdr = eh;
1517 ll_hlen = ETH_HLEN;
1518 if (eh->h_proto != htons(ETH_P_IP)) {
1519 if (eh->h_proto == htons(ETH_P_8021Q)) {
1520 veh = (struct vlan_ethhdr *)va;
1521 if (veh->h_vlan_encapsulated_proto != htons(ETH_P_IP))
1522 return -1;
1523
1524 ll_hlen += VLAN_HLEN;
1525 } else {
1526 return -1;
1527 }
1528 }
1529 *hdr_flags = LRO_IPV4;
1530 iph = (struct iphdr *)(va + ll_hlen);
1531 *ip_hdr = iph;
1532 if (iph->protocol != IPPROTO_TCP)
1533 return -1;
1534 *hdr_flags |= LRO_TCP;
1535 *tcpudp_hdr = (u8 *) (*ip_hdr) + (iph->ihl << 2);
1536
1537 return 0;
1538}
1539
1540static void be_lro_init(struct be_adapter *adapter, struct net_device *netdev)
1541{
1542 struct net_lro_mgr *lro_mgr;
1543
1544 lro_mgr = &adapter->rx_obj.lro_mgr;
1545 lro_mgr->dev = netdev;
1546 lro_mgr->features = LRO_F_NAPI;
1547 lro_mgr->ip_summed = CHECKSUM_UNNECESSARY;
1548 lro_mgr->ip_summed_aggr = CHECKSUM_UNNECESSARY;
1549 lro_mgr->max_desc = BE_MAX_LRO_DESCRIPTORS;
1550 lro_mgr->lro_arr = adapter->rx_obj.lro_desc;
1551 lro_mgr->get_frag_header = be_get_frag_header;
1552 lro_mgr->max_aggr = BE_MAX_FRAGS_PER_FRAME;
1553}
1554
1555static struct net_device_ops be_netdev_ops = {
1556 .ndo_open = be_open,
1557 .ndo_stop = be_close,
1558 .ndo_start_xmit = be_xmit,
1559 .ndo_get_stats = be_get_stats,
1560 .ndo_set_rx_mode = be_set_multicast_list,
1561 .ndo_set_mac_address = be_mac_addr_set,
1562 .ndo_change_mtu = be_change_mtu,
1563 .ndo_validate_addr = eth_validate_addr,
1564 .ndo_vlan_rx_register = be_vlan_register,
1565 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
1566 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
1567};
1568
1569static void be_netdev_init(struct net_device *netdev)
1570{
1571 struct be_adapter *adapter = netdev_priv(netdev);
1572
1573 netdev->features |= NETIF_F_SG | NETIF_F_HW_VLAN_RX | NETIF_F_TSO |
1574 NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_FILTER | NETIF_F_IP_CSUM |
1575 NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1576
1577 netdev->flags |= IFF_MULTICAST;
1578
1579 BE_SET_NETDEV_OPS(netdev, &be_netdev_ops);
1580
1581 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
1582
1583 be_lro_init(adapter, netdev);
1584
1585 netif_napi_add(netdev, &adapter->rx_eq.napi, be_poll_rx,
1586 BE_NAPI_WEIGHT);
1587 netif_napi_add(netdev, &adapter->tx_eq.napi, be_poll_tx,
1588 BE_NAPI_WEIGHT);
1589
1590 netif_carrier_off(netdev);
1591 netif_stop_queue(netdev);
1592}
1593
1594static void be_unmap_pci_bars(struct be_adapter *adapter)
1595{
1596 struct be_ctrl_info *ctrl = &adapter->ctrl;
1597 if (ctrl->csr)
1598 iounmap(ctrl->csr);
1599 if (ctrl->db)
1600 iounmap(ctrl->db);
1601 if (ctrl->pcicfg)
1602 iounmap(ctrl->pcicfg);
1603}
1604
1605static int be_map_pci_bars(struct be_adapter *adapter)
1606{
1607 u8 __iomem *addr;
1608
1609 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 2),
1610 pci_resource_len(adapter->pdev, 2));
1611 if (addr == NULL)
1612 return -ENOMEM;
1613 adapter->ctrl.csr = addr;
1614
1615 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 4),
1616 128 * 1024);
1617 if (addr == NULL)
1618 goto pci_map_err;
1619 adapter->ctrl.db = addr;
1620
1621 addr = ioremap_nocache(pci_resource_start(adapter->pdev, 1),
1622 pci_resource_len(adapter->pdev, 1));
1623 if (addr == NULL)
1624 goto pci_map_err;
1625 adapter->ctrl.pcicfg = addr;
1626
1627 return 0;
1628pci_map_err:
1629 be_unmap_pci_bars(adapter);
1630 return -ENOMEM;
1631}
1632
1633
1634static void be_ctrl_cleanup(struct be_adapter *adapter)
1635{
1636 struct be_dma_mem *mem = &adapter->ctrl.mbox_mem_alloced;
1637
1638 be_unmap_pci_bars(adapter);
1639
1640 if (mem->va)
1641 pci_free_consistent(adapter->pdev, mem->size,
1642 mem->va, mem->dma);
1643}
1644
1645/* Initialize the mbox required to send cmds to BE */
1646static int be_ctrl_init(struct be_adapter *adapter)
1647{
1648 struct be_ctrl_info *ctrl = &adapter->ctrl;
1649 struct be_dma_mem *mbox_mem_alloc = &ctrl->mbox_mem_alloced;
1650 struct be_dma_mem *mbox_mem_align = &ctrl->mbox_mem;
1651 int status;
1652 u32 val;
1653
1654 status = be_map_pci_bars(adapter);
1655 if (status)
1656 return status;
1657
1658 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
1659 mbox_mem_alloc->va = pci_alloc_consistent(adapter->pdev,
1660 mbox_mem_alloc->size, &mbox_mem_alloc->dma);
1661 if (!mbox_mem_alloc->va) {
1662 be_unmap_pci_bars(adapter);
1663 return -1;
1664 }
1665 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
1666 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
1667 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
1668 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
1669 spin_lock_init(&ctrl->cmd_lock);
1670
1671 val = ioread32(ctrl->pcicfg + PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET);
1672 ctrl->pci_func = (val >> MEMBAR_CTRL_INT_CTRL_PFUNC_SHIFT) &
1673 MEMBAR_CTRL_INT_CTRL_PFUNC_MASK;
1674 return 0;
1675}
1676
1677static void be_stats_cleanup(struct be_adapter *adapter)
1678{
1679 struct be_stats_obj *stats = &adapter->stats;
1680 struct be_dma_mem *cmd = &stats->cmd;
1681
1682 if (cmd->va)
1683 pci_free_consistent(adapter->pdev, cmd->size,
1684 cmd->va, cmd->dma);
1685}
1686
1687static int be_stats_init(struct be_adapter *adapter)
1688{
1689 struct be_stats_obj *stats = &adapter->stats;
1690 struct be_dma_mem *cmd = &stats->cmd;
1691
1692 cmd->size = sizeof(struct be_cmd_req_get_stats);
1693 cmd->va = pci_alloc_consistent(adapter->pdev, cmd->size, &cmd->dma);
1694 if (cmd->va == NULL)
1695 return -1;
1696 return 0;
1697}
1698
1699static void __devexit be_remove(struct pci_dev *pdev)
1700{
1701 struct be_adapter *adapter = pci_get_drvdata(pdev);
1702 if (!adapter)
1703 return;
1704
1705 unregister_netdev(adapter->netdev);
1706
1707 be_stats_cleanup(adapter);
1708
1709 be_ctrl_cleanup(adapter);
1710
1711 if (adapter->msix_enabled) {
1712 pci_disable_msix(adapter->pdev);
1713 adapter->msix_enabled = false;
1714 }
1715
1716 pci_set_drvdata(pdev, NULL);
1717 pci_release_regions(pdev);
1718 pci_disable_device(pdev);
1719
1720 free_netdev(adapter->netdev);
1721}
1722
1723static int be_hw_up(struct be_adapter *adapter)
1724{
1725 struct be_ctrl_info *ctrl = &adapter->ctrl;
1726 int status;
1727
1728 status = be_cmd_POST(ctrl);
1729 if (status)
1730 return status;
1731
1732 status = be_cmd_get_fw_ver(ctrl, adapter->fw_ver);
1733 if (status)
1734 return status;
1735
1736 status = be_cmd_query_fw_cfg(ctrl, &adapter->port_num);
1737 return status;
1738}
1739
1740static int __devinit be_probe(struct pci_dev *pdev,
1741 const struct pci_device_id *pdev_id)
1742{
1743 int status = 0;
1744 struct be_adapter *adapter;
1745 struct net_device *netdev;
1746 struct be_ctrl_info *ctrl;
1747 u8 mac[ETH_ALEN];
1748
1749 status = pci_enable_device(pdev);
1750 if (status)
1751 goto do_none;
1752
1753 status = pci_request_regions(pdev, DRV_NAME);
1754 if (status)
1755 goto disable_dev;
1756 pci_set_master(pdev);
1757
1758 netdev = alloc_etherdev(sizeof(struct be_adapter));
1759 if (netdev == NULL) {
1760 status = -ENOMEM;
1761 goto rel_reg;
1762 }
1763 adapter = netdev_priv(netdev);
1764 adapter->pdev = pdev;
1765 pci_set_drvdata(pdev, adapter);
1766 adapter->netdev = netdev;
1767
1768 be_msix_enable(adapter);
1769
1770 status = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
1771 if (!status) {
1772 netdev->features |= NETIF_F_HIGHDMA;
1773 } else {
1774 status = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
1775 if (status) {
1776 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
1777 goto free_netdev;
1778 }
1779 }
1780
1781 ctrl = &adapter->ctrl;
1782 status = be_ctrl_init(adapter);
1783 if (status)
1784 goto free_netdev;
1785
1786 status = be_stats_init(adapter);
1787 if (status)
1788 goto ctrl_clean;
1789
1790 status = be_hw_up(adapter);
1791 if (status)
1792 goto stats_clean;
1793
1794 status = be_cmd_mac_addr_query(ctrl, mac, MAC_ADDRESS_TYPE_NETWORK,
1795 true /* permanent */, 0);
1796 if (status)
1797 goto stats_clean;
1798 memcpy(netdev->dev_addr, mac, ETH_ALEN);
1799
1800 INIT_DELAYED_WORK(&adapter->work, be_worker);
1801 be_netdev_init(netdev);
1802 SET_NETDEV_DEV(netdev, &adapter->pdev->dev);
1803
1804 status = register_netdev(netdev);
1805 if (status != 0)
1806 goto stats_clean;
1807
1808 dev_info(&pdev->dev, BE_NAME " port %d\n", adapter->port_num);
1809 return 0;
1810
1811stats_clean:
1812 be_stats_cleanup(adapter);
1813ctrl_clean:
1814 be_ctrl_cleanup(adapter);
1815free_netdev:
1816 free_netdev(adapter->netdev);
1817rel_reg:
1818 pci_release_regions(pdev);
1819disable_dev:
1820 pci_disable_device(pdev);
1821do_none:
1822 dev_warn(&pdev->dev, BE_NAME " initialization failed\n");
1823 return status;
1824}
1825
1826static int be_suspend(struct pci_dev *pdev, pm_message_t state)
1827{
1828 struct be_adapter *adapter = pci_get_drvdata(pdev);
1829 struct net_device *netdev = adapter->netdev;
1830
1831 netif_device_detach(netdev);
1832 if (netif_running(netdev)) {
1833 rtnl_lock();
1834 be_close(netdev);
1835 rtnl_unlock();
1836 }
1837
1838 pci_save_state(pdev);
1839 pci_disable_device(pdev);
1840 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1841 return 0;
1842}
1843
1844static int be_resume(struct pci_dev *pdev)
1845{
1846 int status = 0;
1847 struct be_adapter *adapter = pci_get_drvdata(pdev);
1848 struct net_device *netdev = adapter->netdev;
1849
1850 netif_device_detach(netdev);
1851
1852 status = pci_enable_device(pdev);
1853 if (status)
1854 return status;
1855
1856 pci_set_power_state(pdev, 0);
1857 pci_restore_state(pdev);
1858
1859 be_vids_config(netdev);
1860
1861 if (netif_running(netdev)) {
1862 rtnl_lock();
1863 be_open(netdev);
1864 rtnl_unlock();
1865 }
1866 netif_device_attach(netdev);
1867 return 0;
1868}
1869
1870static struct pci_driver be_driver = {
1871 .name = DRV_NAME,
1872 .id_table = be_dev_ids,
1873 .probe = be_probe,
1874 .remove = be_remove,
1875 .suspend = be_suspend,
1876 .resume = be_resume
1877};
1878
1879static int __init be_init_module(void)
1880{
1881 if (rx_frag_size != 8192 && rx_frag_size != 4096
1882 && rx_frag_size != 2048) {
1883 printk(KERN_WARNING DRV_NAME
1884 " : Module param rx_frag_size must be 2048/4096/8192."
1885 " Using 2048\n");
1886 rx_frag_size = 2048;
1887 }
1888 /* Ensure rx_frag_size is aligned to chache line */
1889 if (SKB_DATA_ALIGN(rx_frag_size) != rx_frag_size) {
1890 printk(KERN_WARNING DRV_NAME
1891 " : Bad module param rx_frag_size. Using 2048\n");
1892 rx_frag_size = 2048;
1893 }
1894
1895 return pci_register_driver(&be_driver);
1896}
1897module_init(be_init_module);
1898
1899static void __exit be_exit_module(void)
1900{
1901 pci_unregister_driver(&be_driver);
1902}
1903module_exit(be_exit_module);
generated by cgit v1.2.2 (git 2.25.0) at 2024-10-12 08:28:58 -0400