diff options
Diffstat (limited to 'freebsd/sys/dev/e1000/e1000_82571.c')
| -rw-r--r-- | freebsd/sys/dev/e1000/e1000_82571.c | 157 |
1 files changed, 18 insertions, 139 deletions
diff --git a/freebsd/sys/dev/e1000/e1000_82571.c b/freebsd/sys/dev/e1000/e1000_82571.c index fdef7284..f84baf92 100644 --- a/freebsd/sys/dev/e1000/e1000_82571.c +++ b/freebsd/sys/dev/e1000/e1000_82571.c @@ -73,11 +73,8 @@ static s32 e1000_check_for_serdes_link_82571(struct e1000_hw *hw); static s32 e1000_setup_fiber_serdes_link_82571(struct e1000_hw *hw); static s32 e1000_valid_led_default_82571(struct e1000_hw *hw, u16 *data); static void e1000_clear_hw_cntrs_82571(struct e1000_hw *hw); -static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw); static s32 e1000_fix_nvm_checksum_82571(struct e1000_hw *hw); static s32 e1000_get_phy_id_82571(struct e1000_hw *hw); -static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw); -static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw); static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw); static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw); static s32 e1000_set_d0_lplu_state_82574(struct e1000_hw *hw, @@ -128,8 +125,8 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw) phy->ops.get_cable_length = e1000_get_cable_length_igp_2; phy->ops.read_reg = e1000_read_phy_reg_igp; phy->ops.write_reg = e1000_write_phy_reg_igp; - phy->ops.acquire = e1000_get_hw_semaphore_82571; - phy->ops.release = e1000_put_hw_semaphore_82571; + phy->ops.acquire = e1000_get_hw_semaphore; + phy->ops.release = e1000_put_hw_semaphore; break; case e1000_82573: phy->type = e1000_phy_m88; @@ -141,12 +138,11 @@ static s32 e1000_init_phy_params_82571(struct e1000_hw *hw) phy->ops.get_cable_length = e1000_get_cable_length_m88; phy->ops.read_reg = e1000_read_phy_reg_m88; phy->ops.write_reg = e1000_write_phy_reg_m88; - phy->ops.acquire = e1000_get_hw_semaphore_82571; - phy->ops.release = e1000_put_hw_semaphore_82571; + phy->ops.acquire = e1000_get_hw_semaphore; + phy->ops.release = e1000_put_hw_semaphore; break; case e1000_82574: case e1000_82583: - E1000_MUTEX_INIT(&hw->dev_spec._82571.swflag_mutex); phy->type = e1000_phy_bm; phy->ops.get_cfg_done = e1000_get_cfg_done_generic; @@ -509,99 +505,21 @@ static s32 e1000_get_phy_id_82571(struct e1000_hw *hw) } /** - * e1000_get_hw_semaphore_82571 - Acquire hardware semaphore - * @hw: pointer to the HW structure - * - * Acquire the HW semaphore to access the PHY or NVM - **/ -static s32 e1000_get_hw_semaphore_82571(struct e1000_hw *hw) -{ - u32 swsm; - s32 sw_timeout = hw->nvm.word_size + 1; - s32 fw_timeout = hw->nvm.word_size + 1; - s32 i = 0; - - DEBUGFUNC("e1000_get_hw_semaphore_82571"); - - /* If we have timedout 3 times on trying to acquire - * the inter-port SMBI semaphore, there is old code - * operating on the other port, and it is not - * releasing SMBI. Modify the number of times that - * we try for the semaphore to interwork with this - * older code. - */ - if (hw->dev_spec._82571.smb_counter > 2) - sw_timeout = 1; - - /* Get the SW semaphore */ - while (i < sw_timeout) { - swsm = E1000_READ_REG(hw, E1000_SWSM); - if (!(swsm & E1000_SWSM_SMBI)) - break; - - usec_delay(50); - i++; - } - - if (i == sw_timeout) { - DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); - hw->dev_spec._82571.smb_counter++; - } - /* Get the FW semaphore. */ - for (i = 0; i < fw_timeout; i++) { - swsm = E1000_READ_REG(hw, E1000_SWSM); - E1000_WRITE_REG(hw, E1000_SWSM, swsm | E1000_SWSM_SWESMBI); - - /* Semaphore acquired if bit latched */ - if (E1000_READ_REG(hw, E1000_SWSM) & E1000_SWSM_SWESMBI) - break; - - usec_delay(50); - } - - if (i == fw_timeout) { - /* Release semaphores */ - e1000_put_hw_semaphore_82571(hw); - DEBUGOUT("Driver can't access the NVM\n"); - return -E1000_ERR_NVM; - } - - return E1000_SUCCESS; -} - -/** - * e1000_put_hw_semaphore_82571 - Release hardware semaphore - * @hw: pointer to the HW structure - * - * Release hardware semaphore used to access the PHY or NVM - **/ -static void e1000_put_hw_semaphore_82571(struct e1000_hw *hw) -{ - u32 swsm; - - DEBUGFUNC("e1000_put_hw_semaphore_generic"); - - swsm = E1000_READ_REG(hw, E1000_SWSM); - - swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); - - E1000_WRITE_REG(hw, E1000_SWSM, swsm); -} - -/** - * e1000_get_hw_semaphore_82573 - Acquire hardware semaphore + * e1000_get_hw_semaphore_82574 - Acquire hardware semaphore * @hw: pointer to the HW structure * * Acquire the HW semaphore during reset. * **/ -static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw) +static s32 +e1000_get_hw_semaphore_82574(struct e1000_hw *hw) { u32 extcnf_ctrl; s32 i = 0; - + /* XXX assert that mutex is held */ DEBUGFUNC("e1000_get_hw_semaphore_82573"); + ASSERT_CTX_LOCK_HELD(hw); extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL); do { extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; @@ -617,7 +535,7 @@ static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw) if (i == MDIO_OWNERSHIP_TIMEOUT) { /* Release semaphores */ - e1000_put_hw_semaphore_82573(hw); + e1000_put_hw_semaphore_82574(hw); DEBUGOUT("Driver can't access the PHY\n"); return -E1000_ERR_PHY; } @@ -626,17 +544,18 @@ static s32 e1000_get_hw_semaphore_82573(struct e1000_hw *hw) } /** - * e1000_put_hw_semaphore_82573 - Release hardware semaphore + * e1000_put_hw_semaphore_82574 - Release hardware semaphore * @hw: pointer to the HW structure * * Release hardware semaphore used during reset. * **/ -static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw) +static void +e1000_put_hw_semaphore_82574(struct e1000_hw *hw) { u32 extcnf_ctrl; - DEBUGFUNC("e1000_put_hw_semaphore_82573"); + DEBUGFUNC("e1000_put_hw_semaphore_82574"); extcnf_ctrl = E1000_READ_REG(hw, E1000_EXTCNF_CTRL); extcnf_ctrl &= ~E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; @@ -644,41 +563,6 @@ static void e1000_put_hw_semaphore_82573(struct e1000_hw *hw) } /** - * e1000_get_hw_semaphore_82574 - Acquire hardware semaphore - * @hw: pointer to the HW structure - * - * Acquire the HW semaphore to access the PHY or NVM. - * - **/ -static s32 e1000_get_hw_semaphore_82574(struct e1000_hw *hw) -{ - s32 ret_val; - - DEBUGFUNC("e1000_get_hw_semaphore_82574"); - - E1000_MUTEX_LOCK(&hw->dev_spec._82571.swflag_mutex); - ret_val = e1000_get_hw_semaphore_82573(hw); - if (ret_val) - E1000_MUTEX_UNLOCK(&hw->dev_spec._82571.swflag_mutex); - return ret_val; -} - -/** - * e1000_put_hw_semaphore_82574 - Release hardware semaphore - * @hw: pointer to the HW structure - * - * Release hardware semaphore used to access the PHY or NVM - * - **/ -static void e1000_put_hw_semaphore_82574(struct e1000_hw *hw) -{ - DEBUGFUNC("e1000_put_hw_semaphore_82574"); - - e1000_put_hw_semaphore_82573(hw); - E1000_MUTEX_UNLOCK(&hw->dev_spec._82571.swflag_mutex); -} - -/** * e1000_set_d0_lplu_state_82574 - Set Low Power Linkup D0 state * @hw: pointer to the HW structure * @active: TRUE to enable LPLU, FALSE to disable @@ -749,7 +633,7 @@ static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw) DEBUGFUNC("e1000_acquire_nvm_82571"); - ret_val = e1000_get_hw_semaphore_82571(hw); + ret_val = e1000_get_hw_semaphore(hw); if (ret_val) return ret_val; @@ -762,7 +646,7 @@ static s32 e1000_acquire_nvm_82571(struct e1000_hw *hw) } if (ret_val) - e1000_put_hw_semaphore_82571(hw); + e1000_put_hw_semaphore(hw); return ret_val; } @@ -778,7 +662,7 @@ static void e1000_release_nvm_82571(struct e1000_hw *hw) DEBUGFUNC("e1000_release_nvm_82571"); e1000_release_nvm_generic(hw); - e1000_put_hw_semaphore_82571(hw); + e1000_put_hw_semaphore(hw); } /** @@ -1095,8 +979,6 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) */ switch (hw->mac.type) { case e1000_82573: - ret_val = e1000_get_hw_semaphore_82573(hw); - break; case e1000_82574: case e1000_82583: ret_val = e1000_get_hw_semaphore_82574(hw); @@ -1113,10 +995,6 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) /* Must release MDIO ownership and mutex after MAC reset. */ switch (hw->mac.type) { case e1000_82573: - /* Release mutex only if the hw semaphore is acquired */ - if (!ret_val) - e1000_put_hw_semaphore_82573(hw); - break; case e1000_82574: case e1000_82583: /* Release mutex only if the hw semaphore is acquired */ @@ -1124,6 +1002,7 @@ static s32 e1000_reset_hw_82571(struct e1000_hw *hw) e1000_put_hw_semaphore_82574(hw); break; default: + /* we didn't get the semaphore no need to put it */ break; } |