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bnxt_en: Change IRQ assignment for RDMA driver.

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In the current code, the range of MSIX vectors allocated for the RDMA
driver is disjoint from the network driver.  This creates a problem
for the new firmware ring reservation scheme.  The new scheme requires
the reserved completion rings/MSIX vectors to be in a contiguous
range.

Change the logic to allocate RDMA MSIX vectors to be contiguous with
the vectors used by bnxt_en on new firmware using the new scheme.
The new function bnxt_get_num_msix() calculates the exact number of
vectors needed by both drivers.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan
2018-03-31 13:54:17 -04:00
committed by David S. Miller
parent 9899bb59ff
commit 08654eb213
3 changed files with 61 additions and 3 deletions
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3
drivers/net/ethernet/broadcom/bnxt/bnxt_ulp.h
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@@ -49,6 +49,7 @@ struct bnxt_ulp {
unsigned long *async_events_bmap;
u16 max_async_event_id;
u16 msix_requested;
u16 msix_base;
atomic_t ref_count;
};
@@ -84,6 +85,8 @@ static inline bool bnxt_ulp_registered(struct bnxt_en_dev *edev, int ulp_id)
return false;
}
int bnxt_get_ulp_msix_num(struct bnxt *bp);
int bnxt_get_ulp_msix_base(struct bnxt *bp);
void bnxt_subtract_ulp_resources(struct bnxt *bp, int ulp_id);
void bnxt_ulp_stop(struct bnxt *bp);
void bnxt_ulp_start(struct bnxt *bp);