ceph/src/spdk/dpdk/drivers/net/ixgbe/base/ixgbe_hv_vf.c

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   3 Copyright (c) 2001-2015, Intel Corporation
   4 All rights reserved.
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  10     this list of conditions and the following disclaimer.
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  18     this software without specific prior written permission.
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  29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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  32 ***************************************************************************/
  33
  34 #include "ixgbe_vf.h"
  35 #include "ixgbe_hv_vf.h"
  36
  37 /**
  38  * Hyper-V variant - just a stub.
  39  * @hw: unused
  40  * @mc_addr_list: unused
  41  * @mc_addr_count: unused
  42  * @next: unused
  43  * @clear: unused
  44  */
  45 static s32 ixgbevf_hv_update_mc_addr_list_vf(struct ixgbe_hw *hw, u8 *mc_addr_list,
  46                                  u32 mc_addr_count, ixgbe_mc_addr_itr next,
  47                                  bool clear)
  48 {
  49         UNREFERENCED_5PARAMETER(hw, mc_addr_list, mc_addr_count, next, clear);
  50
  51         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
  52 }
  53
  54 /**
  55  * Hyper-V variant - just a stub.
  56  * @hw: unused
  57  * @xcast_mode: unused
  58  */
  59 static s32 ixgbevf_hv_update_xcast_mode(struct ixgbe_hw *hw, int xcast_mode)
  60 {
  61         UNREFERENCED_2PARAMETER(hw, xcast_mode);
  62
  63         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
  64 }
  65
  66 /**
  67  * Hyper-V variant - just a stub.
  68  * @hw: unused
  69  * @vlan: unused
  70  * @vind: unused
  71  * @vlan_on: unused
  72  * @vlvf_bypass: unused
  73  */
  74 static s32 ixgbevf_hv_set_vfta_vf(struct ixgbe_hw *hw, u32 vlan, u32 vind,
  75                                   bool vlan_on, bool vlvf_bypass)
  76 {
  77         UNREFERENCED_5PARAMETER(hw, vlan, vind, vlan_on, vlvf_bypass);
  78
  79         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
  80 }
  81
  82 static s32 ixgbevf_hv_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
  83 {
  84         UNREFERENCED_3PARAMETER(hw, index, addr);
  85
  86         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
  87 }
  88
  89 /**
  90  * Hyper-V variant - just a stub.
  91  */
  92 static s32 ixgbevf_hv_reset_hw_vf(struct ixgbe_hw *hw)
  93 {
  94         UNREFERENCED_PARAMETER(hw);
  95
  96         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
  97 }
  98
  99 /**
 100  * Hyper-V variant - just a stub.
 101  */
 102 static s32 ixgbevf_hv_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr, u32 vlan, u32 vind)
 103 {
 104         UNREFERENCED_5PARAMETER(hw, index, addr, vlan, vind);
 105
 106         return IXGBE_ERR_FEATURE_NOT_SUPPORTED;
 107 }
 108
 109 /**
 110  * Hyper-V variant; there is no mailbox communication.
 111  * @hw: pointer to hardware structure
 112  * @speed: pointer to link speed
 113  * @link_up: true is link is up, false otherwise
 114  * @autoneg_wait_to_complete: unused
 115  *
 116  */
 117 static s32 ixgbevf_hv_check_mac_link_vf(struct ixgbe_hw *hw,
 118                                         ixgbe_link_speed *speed,
 119                                         bool *link_up,
 120                                         bool autoneg_wait_to_complete)
 121 {
 122         struct ixgbe_mbx_info *mbx = &hw->mbx;
 123         struct ixgbe_mac_info *mac = &hw->mac;
 124         u32 links_reg;
 125         UNREFERENCED_1PARAMETER(autoneg_wait_to_complete);
 126
 127         /* If we were hit with a reset drop the link */
 128         if (!mbx->ops.check_for_rst(hw, 0) || !mbx->timeout)
 129                 mac->get_link_status = true;
 130
 131         if (!mac->get_link_status)
 132                 goto out;
 133
 134         /* if link status is down no point in checking to see if pf is up */
 135         links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 136         if (!(links_reg & IXGBE_LINKS_UP))
 137                 goto out;
 138
 139         /* for SFP+ modules and DA cables on 82599 it can take up to 500usecs
 140          * before the link status is correct
 141          */
 142         if (mac->type == ixgbe_mac_82599_vf) {
 143                 int i;
 144
 145                 for (i = 0; i < 5; i++) {
 146                         DELAY(100);
 147                         links_reg = IXGBE_READ_REG(hw, IXGBE_VFLINKS);
 148
 149                         if (!(links_reg & IXGBE_LINKS_UP))
 150                                 goto out;
 151                 }
 152         }
 153
 154         switch (links_reg & IXGBE_LINKS_SPEED_82599) {
 155         case IXGBE_LINKS_SPEED_10G_82599:
 156                 *speed = IXGBE_LINK_SPEED_10GB_FULL;
 157                 if (hw->mac.type >= ixgbe_mac_X550) {
 158                         if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
 159                                 *speed = IXGBE_LINK_SPEED_2_5GB_FULL;
 160                 }
 161                 break;
 162         case IXGBE_LINKS_SPEED_1G_82599:
 163                 *speed = IXGBE_LINK_SPEED_1GB_FULL;
 164                 break;
 165         case IXGBE_LINKS_SPEED_100_82599:
 166                 *speed = IXGBE_LINK_SPEED_100_FULL;
 167                 if (hw->mac.type == ixgbe_mac_X550) {
 168                         if (links_reg & IXGBE_LINKS_SPEED_NON_STD)
 169                                 *speed = IXGBE_LINK_SPEED_5GB_FULL;
 170                 }
 171                 break;
 172         case IXGBE_LINKS_SPEED_10_X550EM_A:
 173                 *speed = IXGBE_LINK_SPEED_UNKNOWN;
 174                 /* Reserved for pre-x550 devices */
 175                 if (hw->mac.type >= ixgbe_mac_X550)
 176                         *speed = IXGBE_LINK_SPEED_10_FULL;
 177                 break;
 178         default:
 179                 *speed = IXGBE_LINK_SPEED_UNKNOWN;
 180         }
 181
 182         /* if we passed all the tests above then the link is up and we no
 183          * longer need to check for link
 184          */
 185         mac->get_link_status = false;
 186
 187 out:
 188         *link_up = !mac->get_link_status;
 189         return IXGBE_SUCCESS;
 190 }
 191
 192 /**
 193  * ixgbevf_hv_set_rlpml_vf - Set the maximum receive packet length
 194  * @hw: pointer to the HW structure
 195  * @max_size: value to assign to max frame size
 196  * Hyper-V variant.
 197  **/
 198 static s32 ixgbevf_hv_set_rlpml_vf(struct ixgbe_hw *hw, u16 max_size)
 199 {
 200         u32 reg;
 201
 202         /* If we are on Hyper-V, we implement this functionality
 203          * differently.
 204          */
 205         reg =  IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(0));
 206         /* CRC == 4 */
 207         reg |= ((max_size + 4) | IXGBE_RXDCTL_RLPML_EN);
 208         IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(0), reg);
 209
 210         return IXGBE_SUCCESS;
 211 }
 212
 213 /**
 214  *  ixgbevf_hv_negotiate_api_version_vf - Negotiate supported API version
 215  *  @hw: pointer to the HW structure
 216  *  @api: integer containing requested API version
 217  *  Hyper-V version - only ixgbe_mbox_api_10 supported.
 218  **/
 219 static int ixgbevf_hv_negotiate_api_version_vf(struct ixgbe_hw *hw, int api)
 220 {
 221         UNREFERENCED_1PARAMETER(hw);
 222
 223         /* Hyper-V only supports api version ixgbe_mbox_api_10 */
 224         if (api != ixgbe_mbox_api_10)
 225                 return IXGBE_ERR_INVALID_ARGUMENT;
 226
 227         return IXGBE_SUCCESS;
 228 }
 229
 230 /**
 231  *  ixgbevf_hv_init_ops_vf - Initialize the pointers for vf
 232  *  @hw: pointer to hardware structure
 233  *
 234  *  This will assign function pointers, adapter-specific functions can
 235  *  override the assignment of generic function pointers by assigning
 236  *  their own adapter-specific function pointers.
 237  *  Does not touch the hardware.
 238  **/
 239 s32 ixgbevf_hv_init_ops_vf(struct ixgbe_hw *hw)
 240 {
 241         /* Set defaults for VF then override applicable Hyper-V
 242          * specific functions
 243          */
 244         ixgbe_init_ops_vf(hw);
 245
 246         hw->mac.ops.reset_hw = ixgbevf_hv_reset_hw_vf;
 247         hw->mac.ops.check_link = ixgbevf_hv_check_mac_link_vf;
 248         hw->mac.ops.negotiate_api_version = ixgbevf_hv_negotiate_api_version_vf;
 249         hw->mac.ops.set_rar = ixgbevf_hv_set_rar_vf;
 250         hw->mac.ops.update_mc_addr_list = ixgbevf_hv_update_mc_addr_list_vf;
 251         hw->mac.ops.update_xcast_mode = ixgbevf_hv_update_xcast_mode;
 252         hw->mac.ops.set_uc_addr = ixgbevf_hv_set_uc_addr_vf;
 253         hw->mac.ops.set_vfta = ixgbevf_hv_set_vfta_vf;
 254         hw->mac.ops.set_rlpml = ixgbevf_hv_set_rlpml_vf;
 255
 256         return IXGBE_SUCCESS;
 257 }