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cnss2: Add one MSI vector support

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Some platforms can't meet the number of MSI interrupt vectors that
wlan driver requires.
Add one MSI interrupt vector support.
If CONFIG_ONE_MSI_VECTOR is not defined, wlan driver fails to load
if reuired MSI vector allocation fails. It is current behavior.
If CONFIG_ONE_MSI_VECTOR is defined, firstly it will allocate multiple
MSI vectors based on MSI config. If MSI vector allocation fails, it
fallbacks to one MSI vector automatically.

Change-Id: I813f7ddf678ecf405e573f3bc72af3e758d1c96d
CRs-Fixed: 3312670
This commit is contained in:
Bing Sun
2022-09-23 10:33:03 +08:00
committed by Madan Koyyalamudi
parent e3b36fcd46
commit fe37b559b9
5 changed files with 118 additions and 4 deletions
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inc/cnss2.h
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@@ -270,6 +270,7 @@ extern int cnss_get_user_msi_assignment(struct device *dev, char *user_name,
uint32_t *user_base_data,
uint32_t *base_vector);
extern int cnss_get_msi_irq(struct device *dev, unsigned int vector);
extern bool cnss_is_one_msi(struct device *dev);
extern void cnss_get_msi_address(struct device *dev, uint32_t *msi_addr_low,
uint32_t *msi_addr_high);
extern int cnss_wlan_hw_enable(void);