iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

iwlwifi: allocate the transport from the bus layer

Browse Source 
Change the way we alloc the transport on the way.
Since the transport is allocated from a bus specific area, we can
give the bus specific parameters (i.e. pci_dev for PCI) to the
transport. This will be useful when the bus layer will be killed.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-02-02 14:16:59 -08:00 committed by Wey-Yi Guy
parent e81fb554cf
commit b52e7ea109
4 changed files with 48 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/net/wireless/iwlwifi/iwl-agn.c
View File

@ -1783,12 +1783,6 @@ int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
priv->shrd = bus->shrd;
priv->shrd->priv = priv;
priv->shrd->trans = trans_ops->alloc(priv->shrd);
if (priv->shrd->trans == NULL) {
err = -ENOMEM;
goto out_free_traffic_mem;
}
/* At this point both hw and priv are allocated. */
SET_IEEE80211_DEV(hw, bus(priv)->dev);
@ -1835,12 +1829,12 @@ int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
err = iwl_trans_request_irq(trans(priv));
if (err)
goto out_free_trans;
goto out_free_traffic_mem;
if (iwl_trans_prepare_card_hw(trans(priv))) {
err = -EIO;
IWL_WARN(priv, "Failed, HW not ready\n");
goto out_free_trans;
goto out_free_traffic_mem;
}
/*****************
@ -1854,7 +1848,7 @@ int iwl_probe(struct iwl_bus *bus, const struct iwl_trans_ops *trans_ops,
iwl_apm_stop(priv);
if (err) {
IWL_ERR(priv, "Unable to init EEPROM\n");
goto out_free_trans;
goto out_free_traffic_mem;
}
err = iwl_eeprom_check_version(priv);
if (err)
@ -1935,8 +1929,6 @@ out_destroy_workqueue:
iwl_uninit_drv(priv);
out_free_eeprom:
iwl_eeprom_free(priv->shrd);
out_free_trans:
iwl_trans_free(trans(priv));
out_free_traffic_mem:
iwl_free_traffic_mem(priv);
ieee80211_free_hw(priv->hw);
@ -1980,8 +1972,6 @@ void __devexit iwl_remove(struct iwl_priv * priv)
priv->shrd->workqueue = NULL;
iwl_free_traffic_mem(priv);
iwl_trans_free(trans(priv));
iwl_uninit_drv(priv);
dev_kfree_skb(priv->beacon_skb);

17
drivers/net/wireless/iwlwifi/iwl-pci.c
View File

@ -463,14 +463,28 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
bus->ops = &bus_ops_pci;
#ifdef CONFIG_IWLWIFI_IDI
trans(bus) = iwl_trans_idi_alloc(bus->shrd, pdev, ent);
if (trans(bus) == NULL) {
err = -ENOMEM;
goto out_disable_msi;
}
err = iwl_probe(bus, &trans_ops_idi, cfg);
#else
trans(bus) = iwl_trans_pcie_alloc(bus->shrd, pdev, ent);
if (trans(bus) == NULL) {
err = -ENOMEM;
goto out_disable_msi;
}
err = iwl_probe(bus, &trans_ops_pcie, cfg);
#endif
if (err)
goto out_disable_msi;
goto out_free_trans;
return 0;
out_free_trans:
iwl_trans_free(trans(bus));
out_disable_msi:
pci_disable_msi(pdev);
pci_iounmap(pdev, pci_bus->hw_base);
@ -493,6 +507,7 @@ static void __devexit iwl_pci_remove(struct pci_dev *pdev)
struct iwl_shared *shrd = bus->shrd;
iwl_remove(shrd->priv);
iwl_trans_free(shrd->trans);
pci_disable_msi(pci_dev);
pci_iounmap(pci_dev, pci_bus->hw_base);

24
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
View File

@ -1376,19 +1376,24 @@ static void iwl_trans_pcie_wake_any_queue(struct iwl_trans *trans,
const struct iwl_trans_ops trans_ops_pcie;
static struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd)
struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
struct pci_dev *pdev,
const struct pci_device_id *ent)
{
struct iwl_trans_pcie *trans_pcie;
struct iwl_trans *iwl_trans = kzalloc(sizeof(struct iwl_trans) +
sizeof(struct iwl_trans_pcie),
GFP_KERNEL);
if (iwl_trans) {
struct iwl_trans_pcie *trans_pcie =
IWL_TRANS_GET_PCIE_TRANS(iwl_trans);
iwl_trans->ops = &trans_ops_pcie;
iwl_trans->shrd = shrd;
trans_pcie->trans = iwl_trans;
spin_lock_init(&iwl_trans->hcmd_lock);
}
if (WARN_ON(!iwl_trans))
return NULL;
trans_pcie = IWL_TRANS_GET_PCIE_TRANS(iwl_trans);
iwl_trans->ops = &trans_ops_pcie;
iwl_trans->shrd = shrd;
trans_pcie->trans = iwl_trans;
spin_lock_init(&iwl_trans->hcmd_lock);
return iwl_trans;
}
@ -1912,7 +1917,6 @@ static int iwl_trans_pcie_dbgfs_register(struct iwl_trans *trans,
#endif /*CONFIG_IWLWIFI_DEBUGFS */
const struct iwl_trans_ops trans_ops_pcie = {
.alloc = iwl_trans_pcie_alloc,
.request_irq = iwl_trans_pcie_request_irq,
.fw_alive = iwl_trans_pcie_fw_alive,
.start_device = iwl_trans_pcie_start_device,

21
drivers/net/wireless/iwlwifi/iwl-trans.h
View File

@ -133,7 +133,6 @@ struct iwl_host_cmd {
/**
* struct iwl_trans_ops - transport specific operations
* @alloc: allocates the meta data (not the queues themselves)
* @request_irq: requests IRQ - will be called before the FW load in probe flow
* @start_device: allocates and inits all the resources for the transport
* layer.
@ -162,7 +161,6 @@ struct iwl_host_cmd {
*/
struct iwl_trans_ops {
struct iwl_trans *(*alloc)(struct iwl_shared *shrd);
int (*request_irq)(struct iwl_trans *iwl_trans);
int (*start_device)(struct iwl_trans *trans);
void (*fw_alive)(struct iwl_trans *trans);
@ -380,11 +378,8 @@ static inline int iwl_trans_resume(struct iwl_trans *trans)
#endif
/*****************************************************
* Transport layers implementations
* Utils functions
******************************************************/
extern const struct iwl_trans_ops trans_ops_pcie;
extern const struct iwl_trans_ops trans_ops_idi;
int iwl_alloc_fw_desc(struct iwl_bus *bus, struct fw_desc *desc,
const void *data, size_t len);
void iwl_dealloc_ucode(struct iwl_trans *trans);
@ -394,4 +389,18 @@ int iwl_calib_set(struct iwl_trans *trans,
const struct iwl_calib_hdr *cmd, int len);
void iwl_calib_free_results(struct iwl_trans *trans);
/*****************************************************
* Transport layers implementations + their allocation function
******************************************************/
struct pci_dev;
struct pci_device_id;
extern const struct iwl_trans_ops trans_ops_pcie;
struct iwl_trans *iwl_trans_pcie_alloc(struct iwl_shared *shrd,
struct pci_dev *pdev,
const struct pci_device_id *ent);
extern const struct iwl_trans_ops trans_ops_idi;
struct iwl_trans *iwl_trans_idi_alloc(struct iwl_shared *shrd,
void *pdev_void,
const void *ent_void);
#endif /* __iwl_trans_h__ */