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Date: Thu, 12 May 2022 13:15:47 +0800
From: kernel test robot <lkp@...el.com>
To: Jiawen Wu <jiawenwu@...stnetic.com>, netdev@...r.kernel.org
Cc: kbuild-all@...ts.01.org, Jiawen Wu <jiawenwu@...stnetic.com>
Subject: Re: [PATCH net-next 02/14] net: txgbe: Add hardware initialization
Hi Jiawen,
I love your patch! Perhaps something to improve:
[auto build test WARNING on horms-ipvs/master]
[cannot apply to net-next/master net/master linus/master v5.18-rc6 next-20220511]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/intel-lab-lkp/linux/commits/Jiawen-Wu/Wangxun-10-Gigabit-Ethernet-Driver/20220511-113032
base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master
config: arc-allyesconfig (https://download.01.org/0day-ci/archive/20220512/202205121354.BKT9ZuVB-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/f33cce2ea458796311d5925beaf78c01546f36ce
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Jiawen-Wu/Wangxun-10-Gigabit-Ethernet-Driver/20220511-113032
git checkout f33cce2ea458796311d5925beaf78c01546f36ce
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=arc SHELL=/bin/bash drivers/net/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
drivers/net/ethernet/wangxun/txgbe/txgbe_main.c:98:6: warning: no previous prototype for 'txgbe_service_event_schedule' [-Wmissing-prototypes]
98 | void txgbe_service_event_schedule(struct txgbe_adapter *adapter)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/wangxun/txgbe/txgbe_main.c:178:6: warning: no previous prototype for 'txgbe_reset' [-Wmissing-prototypes]
178 | void txgbe_reset(struct txgbe_adapter *adapter)
| ^~~~~~~~~~~
>> drivers/net/ethernet/wangxun/txgbe/txgbe_main.c:208:6: warning: no previous prototype for 'txgbe_disable_device' [-Wmissing-prototypes]
208 | void txgbe_disable_device(struct txgbe_adapter *adapter)
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/wangxun/txgbe/txgbe_main.c:264:5: warning: no previous prototype for 'txgbe_init_shared_code' [-Wmissing-prototypes]
264 | s32 txgbe_init_shared_code(struct txgbe_hw *hw)
| ^~~~~~~~~~~~~~~~~~~~~~
drivers/net/ethernet/wangxun/txgbe/txgbe_main.c: In function 'txgbe_probe':
drivers/net/ethernet/wangxun/txgbe/txgbe_main.c:460:18: warning: variable 'pci_using_dac' set but not used [-Wunused-but-set-variable]
460 | int err, pci_using_dac, expected_gts;
| ^~~~~~~~~~~~~
--
drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c:205: warning: Function parameter or member 'pools' not described in 'txgbe_set_rar'
drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c:205: warning: Excess function parameter 'vmdq' description in 'txgbe_set_rar'
>> drivers/net/ethernet/wangxun/txgbe/txgbe_hw.c:444: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
* This function should only be involved in the IOV mode.
vim +/txgbe_disable_device +208 drivers/net/ethernet/wangxun/txgbe/txgbe_main.c
97
> 98 void txgbe_service_event_schedule(struct txgbe_adapter *adapter)
99 {
100 if (!test_bit(__TXGBE_DOWN, &adapter->state) &&
101 !test_bit(__TXGBE_REMOVING, &adapter->state) &&
102 !test_and_set_bit(__TXGBE_SERVICE_SCHED, &adapter->state))
103 queue_work(txgbe_wq, &adapter->service_task);
104 }
105
106 static void txgbe_service_event_complete(struct txgbe_adapter *adapter)
107 {
108 BUG_ON(!test_bit(__TXGBE_SERVICE_SCHED, &adapter->state));
109
110 /* flush memory to make sure state is correct before next watchdog */
111 smp_mb__before_atomic();
112 clear_bit(__TXGBE_SERVICE_SCHED, &adapter->state);
113 }
114
115 static void txgbe_remove_adapter(struct txgbe_hw *hw)
116 {
117 struct txgbe_adapter *adapter = hw->back;
118
119 if (!hw->hw_addr)
120 return;
121 hw->hw_addr = NULL;
122 txgbe_dev_err("Adapter removed\n");
123 if (test_bit(__TXGBE_SERVICE_INITED, &adapter->state))
124 txgbe_service_event_schedule(adapter);
125 }
126
127 static void txgbe_sync_mac_table(struct txgbe_adapter *adapter)
128 {
129 struct txgbe_hw *hw = &adapter->hw;
130 int i;
131
132 for (i = 0; i < hw->mac.num_rar_entries; i++) {
133 if (adapter->mac_table[i].state & TXGBE_MAC_STATE_MODIFIED) {
134 if (adapter->mac_table[i].state &
135 TXGBE_MAC_STATE_IN_USE) {
136 TCALL(hw, mac.ops.set_rar, i,
137 adapter->mac_table[i].addr,
138 adapter->mac_table[i].pools,
139 TXGBE_PSR_MAC_SWC_AD_H_AV);
140 } else {
141 TCALL(hw, mac.ops.clear_rar, i);
142 }
143 adapter->mac_table[i].state &=
144 ~(TXGBE_MAC_STATE_MODIFIED);
145 }
146 }
147 }
148
149 /* this function destroys the first RAR entry */
150 static void txgbe_mac_set_default_filter(struct txgbe_adapter *adapter,
151 u8 *addr)
152 {
153 struct txgbe_hw *hw = &adapter->hw;
154
155 memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN);
156 adapter->mac_table[0].pools = 1ULL;
157 adapter->mac_table[0].state = (TXGBE_MAC_STATE_DEFAULT |
158 TXGBE_MAC_STATE_IN_USE);
159 TCALL(hw, mac.ops.set_rar, 0, adapter->mac_table[0].addr,
160 adapter->mac_table[0].pools,
161 TXGBE_PSR_MAC_SWC_AD_H_AV);
162 }
163
164 static void txgbe_flush_sw_mac_table(struct txgbe_adapter *adapter)
165 {
166 u32 i;
167 struct txgbe_hw *hw = &adapter->hw;
168
169 for (i = 0; i < hw->mac.num_rar_entries; i++) {
170 adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED;
171 adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE;
172 memset(adapter->mac_table[i].addr, 0, ETH_ALEN);
173 adapter->mac_table[i].pools = 0;
174 }
175 txgbe_sync_mac_table(adapter);
176 }
177
178 void txgbe_reset(struct txgbe_adapter *adapter)
179 {
180 struct txgbe_hw *hw = &adapter->hw;
181 struct net_device *netdev = adapter->netdev;
182 int err;
183 u8 old_addr[ETH_ALEN];
184
185 if (TXGBE_REMOVED(hw->hw_addr))
186 return;
187
188 err = TCALL(hw, mac.ops.init_hw);
189 switch (err) {
190 case 0:
191 break;
192 case TXGBE_ERR_MASTER_REQUESTS_PENDING:
193 txgbe_dev_err("master disable timed out\n");
194 break;
195 default:
196 txgbe_dev_err("Hardware Error: %d\n", err);
197 }
198
199 /* do not flush user set addresses */
200 memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len);
201 txgbe_flush_sw_mac_table(adapter);
202 txgbe_mac_set_default_filter(adapter, old_addr);
203
204 /* update SAN MAC vmdq pool selection */
205 TCALL(hw, mac.ops.set_vmdq_san_mac, 0);
206 }
207
> 208 void txgbe_disable_device(struct txgbe_adapter *adapter)
209 {
210 struct net_device *netdev = adapter->netdev;
211 struct txgbe_hw *hw = &adapter->hw;
212 u32 i;
213
214 /* signal that we are down to the interrupt handler */
215 if (test_and_set_bit(__TXGBE_DOWN, &adapter->state))
216 return; /* do nothing if already down */
217
218 txgbe_disable_pcie_master(hw);
219 /* disable receives */
220 TCALL(hw, mac.ops.disable_rx);
221
222 /* call carrier off first to avoid false dev_watchdog timeouts */
223 netif_carrier_off(netdev);
224 netif_tx_disable(netdev);
225
226 del_timer_sync(&adapter->service_timer);
227
228 if (hw->bus.lan_id == 0)
229 wr32m(hw, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN0_UP, 0);
230 else if (hw->bus.lan_id == 1)
231 wr32m(hw, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN1_UP, 0);
232 else
233 txgbe_dev_err("%s: invalid bus lan id %d\n", __func__,
234 hw->bus.lan_id);
235
236 if (!(((hw->subsystem_device_id & TXGBE_NCSI_MASK) == TXGBE_NCSI_SUP) ||
237 ((hw->subsystem_device_id & TXGBE_WOL_MASK) == TXGBE_WOL_SUP))) {
238 /* disable mac transmiter */
239 wr32m(hw, TXGBE_MAC_TX_CFG, TXGBE_MAC_TX_CFG_TE, 0);
240 }
241 /* disable transmits in the hardware now that interrupts are off */
242 for (i = 0; i < adapter->num_tx_queues; i++) {
243 u8 reg_idx = adapter->tx_ring[i]->reg_idx;
244
245 wr32(hw, TXGBE_PX_TR_CFG(reg_idx), TXGBE_PX_TR_CFG_SWFLSH);
246 }
247
248 /* Disable the Tx DMA engine */
249 wr32m(hw, TXGBE_TDM_CTL, TXGBE_TDM_CTL_TE, 0);
250 }
251
252 void txgbe_down(struct txgbe_adapter *adapter)
253 {
254 txgbe_disable_device(adapter);
255 txgbe_reset(adapter);
256 }
257
258 /**
259 * txgbe_init_shared_code - Initialize the shared code
260 * @hw: pointer to hardware structure
261 *
262 * This will assign function pointers and assign the MAC type and PHY code.
263 **/
> 264 s32 txgbe_init_shared_code(struct txgbe_hw *hw)
265 {
266 s32 status;
267
268 status = txgbe_init_ops(hw);
269 return status;
270 }
271
--
0-DAY CI Kernel Test Service
https://01.org/lkp
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